Elastomer gum polymer systems

• US 20060100368A1
• Filed: 11/08/2004
• Published: 05/11/2006
• Est. Priority Date: 11/08/2004
• Status: Abandoned Application

• Current Assignee: Freudenberg-Nok General Partnership (Freudenberg & Company KG)
• Original Assignee: Freudenberg-Nok General Partnership (Freudenberg & Company KG)
• Inventors: Park, Edward Hosung
• Application Number:
  US10/983,926
• Publication Number:
  US 20060100368A1
• Time in Patent Office: Days
• US Class Current: 525/50
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: C08J 3/005 Processes for mixing polymers
• CPC Class Codes: C08J 3/246 Intercrosslinking of at least two polymers
• CPC Class Codes: C08L 101/00 Compositions of unspecified macromolecular compounds
• CPC Class Codes: C08L 2666/04 Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
• CPC Class Codes: C08L 75/04 Polyurethanes

Abstract

Elastomer precursor gum (for any of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, and styrene butadiene rubber) and non-gum polymer are admixed with optional electrically conductive particulate and/or optional filler to provide either a continuous phase of polymer with dispersed gum portions, a continuous phase of elastomer precursor gum with dispersed polymer portions, or an interpenetrated structure of elastomer precursor gum and polymer. Curing is optionally enabled with techniques such as electron beam radiation.

Claims

1. A composition comprising:

(a) a continuous phase of polymer; and

(b) a dispersed phase, said dispersed phase comprising a plurality of gum portions dispersed in said continuous phase, wherein each said gum portion is dispersed from elastomer precursor gum having a glass transition temperature, a decomposition temperature, and, at a temperature having a value that is not less than said glass transition temperature and not greater than said decomposition temperature, a compressive set value from about 0 to about 5 percent of a mathematical difference between a non-vulcanized compressive set value for elastomer derived from said elastomer precursor gum and a fully-vulcanized compressive set value for said derived elastomer.

2. The composition of claim 1 wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

3. The composition of claim 2 wherein said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₁₀ at 121 degrees Celsius when said elastomer is fluoroelastomer, and said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₄ at 100 degrees Celsius when said elastomer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

4. The composition of claim 1 wherein said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoroethylene/hexafluoropropylene, fluoroelastomer, fluoro-elastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoroethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, polyesteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, poly-propylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/poly-propylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

5. The composition of claim 1 wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof;

and

said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoro-ethylene/hexafluoropropylene, fluoroelastomer, fluoroelastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoro-ethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, poly-esteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/polypropylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

6. The composition of claim 1 wherein each of said gum portions has a cross-sectional diameter from about 0.1 microns to about 100 microns.

7. The composition of claim 1 wherein said dispersed phase comprises from about 20 weight percent to about 90 weight percent of said composition.

8. The composition of claim 1 further comprising electrically conductive particulate admixed in said dispersed phase and in said continuous phase.

9. The composition of claim 1 further comprising filler selected from the group consisting of fiberglass particulate, inorganic fiber particulate, carbon fiber particulate, ground rubber particulate, polytetrafluorinated ethylene particulate, microspheres, carbon nanotubes, and combinations thereof.

10. A composition comprising:

(a) a continuous phase of elastomer precursor gum having a glass transition temperature, a decomposition temperature, and, at a temperature having a value that is not less than said glass transition temperature and not greater than said decomposition temperature, a compressive set value from about 0 to about 5 percent of a mathematical difference between a non-vulcanized compressive set value for elastomer derived from said elastomer precursor gum and a fully-vulcanized compressive set value for said derived elastomer; and

(b) a dispersed phase of polymer, said dispersed phase comprising a plurality of polymer portions dispersed in said continuous phase.

11. The composition of claim 10 wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

12. The composition of claim 11 wherein said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₁₀ at 121 degrees Celsius when said elastomer is fluoroelastomer, and said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₄ at 100 degrees Celsius when said elastomer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

13. The composition of claim 10 wherein said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoro-ethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoroethylene/hexafluoropropylene, fluoroelastomer, fluoroelastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoroethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, polyesteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/polypropylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

14. The composition of claim 10 wherein said wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof;

and

said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoro-ethylene/hexafluoropropylene, fluoroelastomer, fluoroelastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoro-ethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, poly-esteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/polypropylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

15. The composition of claim 10 wherein each of said polymer portions has a cross-sectional diameter from about 0.1 microns to about 100 microns.

16. The composition of claim 10 wherein said dispersed phase comprises from about 20 weight percent to about 90 weight percent of said composition.

17. The composition of claim 10 further comprising electrically conductive particulate admixed in said dispersed phase and in said continuous phase.

18. The composition of claim 10 further comprising filler selected from the group consisting of fiberglass particulate, inorganic fiber particulate, carbon fiber particulate, ground rubber particulate, polytetrafluorinated ethylene particulate, microspheres, carbon nanotubes, and combinations thereof.

53. The composition of any of claims 2, 3, 5, 11, 12, 14, 20, 21, 23, 28, 29, 31, 37, 38, 40, 46, 47, and 49 wherein said fluororelastomer is selected from the group consisting of

(i) vinylidene fluoride/hexafluoropropylene copolymer fluoroelastomer having from about 66 weight percent to about 69 weight percent fluorine and a Mooney viscosity of from about 0 to about 130 ML₁₊₁₀ at 121 degrees Celsius,

(ii) vinylidene fluoride/perfluorovinyl ether/tetrafluoroethylene terpolymer fluoroelastomer having at least one cure site monomer and from about 64 weight percent to about 67 weight percent fluorine and a Mooney viscosity of from about 50 to about 100 ML₁₊₁₀ at 121 degrees Celsius,

(iii) tetrafluoroethylene/propylene/vinylidene fluoride terpolymer fluoroelastomer having from about 59 weight percent to about 63 weight percent fluorine and a Mooney viscosity of from about 25 to about 45 ML₁₊₁₀ at 121 degrees Celsius,

(iv) tetrafluoroethylene/ethylene/perfluorovinyl ether terpolymer fluoroelastomer having at least one cure site monomer and from about 60 weight percent to about 65 weight percent fluorine and a Mooney viscosity of from about 40 to about 80 ML₁₊₁₀ at 121 degrees Celsius,

(v) vinylidene fluoride/hexafluoropropylene/tetrafluoroethylene terpolymer fluoroelastomer having at least one cure site monomer and from about 66 weight percent to about 72.5 weight percent fluorine and a Mooney viscosity of from about 15 to about 90 ML₁₊₁₀ at 121 degrees Celsius,

(vi) tetrafluoroethylene/propylene copolymer fluoroelastomer having about 57 weight percent fluorine and a Mooney viscosity of from about 25 to about 115 ML₁₊₁₀ at 121 degrees Celsius,

(vii) tetrafluoroethylene/ethylene/perfluorovinyl ether/vinylidene fluoride tetrapolymer fluoroelastomer having at least one cure site monomer and from about 59 weight percent to about 64 weight percent fluorine and a Mooney viscosity of from about 30 to about 70 ML₁₊₁₀ at 121 degrees Celsius,

(viii) tetrafluoroethylene/perfluorovinyl ether copolymer fluoroelastomer having at least one cure site monomer and from about 69 weight percent to about 71 weight percent fluorine and a Mooney viscosity of from about 60 to about 120 ML₁₊₁₀ at 121 degrees Celsius, fluoroelastomer corresponding to the formula

[-TFE_q-HFP_r-VdF_s-]_d

and

(ix) combinations thereof,

wherein TFE is essentially a tetrafluoroethyl block, HFP is essentially a hexfluoropropyl block, and VdF is essentially a vinylidyl fluoride block, and products qd and rd and sd collectively provide proportions of TFE, HFP, and VdF whose values are within element 101 of FIG. 1.

19. A composition, comprising:

an interpenetrated structure of molecules of elastomer precursor gum molecules and molecules of a polymer, wherein said elastomer precursor gum molecules are intermixed into said interpenetrated structure from elastomer precursor gum having a compressive set value from about 0 to about 5 percent of a mathematical difference between a non-vulcanized compressive set value for an elastomer derived from said elastomer precursor gum and a fully-vulcanized compressive set value for said elastomer.

20. The composition of claim 19 wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

21. The composition of claim 20 wherein said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₁₀ at 121 degrees Celsius when said elastomer is fluoroelastomer, and said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₄ at 100 degrees Celsius when said elastomer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

22. The composition of claim 19 wherein said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chloro-trifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoroethylene/hexafluoropropylene, fluoroelastomer, fluoro-elastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoroethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, polyesteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/polypropylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

23. The composition of claim 19 wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof;

and

said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoro-ethylene/hexafluoropropylene, fluoroelastomer, fluoroelastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoro-ethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, poly-esteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/polypropylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

24. The composition of claim 19 wherein said elastomer precursor gum comprises from about 20 weight percent to about 90 weight percent of said composition.

25. The composition of claim 19 further comprising electrically conductive particulate admixed in said interpenetrated structure.

26. The composition of claim 19 further comprising filler selected from the group consisting of fiberglass particulate, inorganic fiber particulate, carbon fiber particulate, ground rubber particulate, polytetrafluorinated ethylene particulate, microspheres, carbon nanotubes, and combinations thereof.

27. A composition comprising:

(a) a continuous phase of polymer; and

(b) a dispersed phase of vulcanized elastomer, said dispersed phase comprising a plurality of vulcanized elastomer portions dispersed in said continuous phase, wherein each said vulcanized elastomer portion is cured from elastomer precursor gum having a glass transition temperature, a decomposition temperature, and, at a temperature having a value that is not less than said glass transition temperature and not greater than said decomposition temperature, a compressive set value from about 0 to about 5 percent of a mathematical difference between a non-vulcanized compressive set value for elastomer derived from said elastomer precursor gum and a fully-vulcanized compressive set value for said derived elastomer.

28. The composition of claim 27 wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

29. The composition of claim 27 wherein said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₁₀ at 121 degrees Celsius when said elastomer is fluoroelastomer, and said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₄ at 100 degrees Celsius when said elastomer is selected from the group consisting of

acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

30. The composition of claim 27 wherein said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoroethylene/hexafluoropropylene, fluoroelastomer, fluoro-elastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoroethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, polyesteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/poly-propylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermo-plastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, poly-amide-imide, and combinations thereof.

31. The composition of claim 27 wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof;

and

said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoro-ethylene/hexafluoropropylene, fluoroelastomer, fluoroelastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoro-ethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, poly-esteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/polypropylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

32. The composition of claim 27 wherein each of said vulcanized elastomer portions has a cross-sectional diameter from about 0.1 microns to about 100 microns.

33. The composition of claim 27 wherein said dispersed phase comprises from about 20 weight percent to about 90 weight percent of said composition.

34. The composition of claim 27 further comprising electrically conductive particulate admixed in said dispersed phase and in said continuous phase.

35. The composition of claim 27 further comprising filler selected from the group consisting of fiberglass particulate, inorganic fiber particulate, carbon fiber particulate, ground rubber particulate, polytetrafluorinated ethylene particulate, microspheres, carbon nanotubes, and combinations thereof.

36. A composition comprising:

(a) a continuous phase of vulcanized elastomer cured from elastomer precursor gum having a glass transition temperature, a decomposition temperature, and, at a temperature having a value that is not less than said glass transition temperature and not greater than said decomposition temperature, a compressive set value from about 0 to about 5 percent of a mathematical difference between a non-vulcanized compressive set value for elastomer derived from said elastomer precursor gum and a fully-vulcanized compressive set value for said derived elastomer; and

(b) a dispersed phase of polymer, said dispersed phase comprising a plurality of polymer portions dispersed in said continuous phase.

37. The composition of claim 36 wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

38. The composition of claim 36 wherein said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₁₀ at 121 degrees Celsius when said elastomer is fluoroelastomer, and said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₄ at 100 degrees Celsius when said elastomer is selected from the group consisting of

acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

39. The composition of claim 36 wherein said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoroethylene/hexafluoropropylene, fluoroelastomer, fluoro-elastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoroethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, polyesteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/poly-propylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermo-plastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

40. The composition of claim 36 wherein said wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof;

and

said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoro-ethylene/hexafluoropropylene, fluoroelastomer, fluoroelastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoro-ethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, poly-esteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/polypropylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

41. The composition of claim 36 wherein each of said polymer portions has a cross-sectional diameter from about 0.1 microns to about 100 microns.

42. The composition of claim 36 wherein said dispersed phase comprises from about 20 weight percent to about 90 weight percent of said composition.

43. The composition of claim 36 further comprising electrically conductive particulate admixed in said dispersed phase and in said continuous phase.

44. The composition of claim 36 further comprising filler selected from the group consisting of fiberglass particulate, inorganic fiber particulate, carbon fiber particulate, ground rubber particulate, polytetrafluorinated ethylene particulate, microspheres, carbon nanotubes, and combinations thereof.

45. A composition, comprising:

an interpenetrated structure of molecules of vulcanized elastomer and molecules of a polymer, wherein said vulcanized elastomer is cured from elastomer precursor gum having a compressive set value from about 0 to about 5 percent of a mathematical difference between a non-vulcanized compressive set value for an elastomer derived from said elastomer precursor gum and a fully-vulcanized compressive set value for said elastomer.

46. The composition of claim 45 wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

47. The composition of claim 45 wherein said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₁₀ at 121 degrees Celsius when said elastomer is fluoroelastomer, and said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₄ at 100 degrees Celsius when said elastomer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

48. The composition of claim 45 wherein said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoro-ethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoroethylene/hexafluoropropylene, fluoroelastomer, fluoroelastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoroethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, polyesteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/polypropylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

49. The composition of claim 45 wherein said elastomer precursor gum comprises precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof;

and

said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoro-ethylene/hexafluoropropylene, fluoroelastomer, fluoroelastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoro-ethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, polyester-etherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/polypropylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

50. The composition of claim 45 wherein said elastomer precursor gum comprises from about 20 weight percent to about 90 weight percent of said composition.

51. The composition of claim 45 further comprising electrically conductive particulate admixed in said interpenetrated structure.

52. The composition of claim 45 further comprising filler selected from the group consisting of fiberglass particulate, inorganic fiber particulate, carbon fiber particulate, ground rubber particulate, polytetrafluorinated ethylene particulate, microspheres, carbon nanotubes, and combinations thereof.

54. A method for making an admixture composition, comprising:

(a) admixing

(i) a polymer; and

(ii) elastomer precursor gum having a glass transition temperature, a decomposition temperature, and, at a temperature having a value that is not less than said glass transition temperature and not greater than said decomposition temperature, a compressive set value from about 0 to about 5 percent of a mathematical difference between a non-vulcanized compressive set value for elastomer derived from said elastomer precursor gum and a fully-vulcanized compressive set value for said derived elastomer.

55. The method of claim 54 wherein, in said admixing, said elastomer precursor gum is a precursor for an elastomer selected from the group consisting of fluoroelastomer, acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

56. The method of claim 54 wherein, in said admixing, said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₁₀ at 121 degrees Celsius when said elastomer is fluoroelastomer, and said elastomer precursor gum has a Mooney viscosity of from about 0 to about 150 ML₁₊₄ at 100 degrees Celsius when said elastomer is selected from the group consisting of

acrylic acid ester rubber/polyacrylate rubber, ethylene acrylic rubber, silicone, nitrile butyl rubber, hydrogenated nitrile rubber, natural rubber, polyurethane, styrene butadiene rubber, and combinations thereof.

57. The method of claim 54 wherein said admixing further comprises admixing

(iii) filler selected from the group consisting of fiberglass particulate, inorganic fiber particulate, carbon fiber particulate, ground rubber particulate, polytetrafluorinated ethylene particulate, microspheres, carbon nanotubes, and combinations thereof.

59. The method of claim 54 wherein, in said admixing, said polymer is selected from the group consisting of acrylic acid ester rubber/polyacrylate rubber thermoplastic vulcanizate acrylonitrile-butadiene-styrene, amorphous nylon, cellulosic plastic, ethylene chlorotrifluoroethylene, epoxy resin, ethylene tetrafluoroethylene, ethylene acrylic rubber, ethylene acrylic rubber thermoplastic vulcanizate, ethylene acrylic monomer rubber/polyester thermoplastic elastomer, ethylene-propylene-diamine monomer rubber/polypropylene thermoplastic vulcanizate, tetrafluoroethylene/hexafluoropropylene, fluoroelastomer, fluoroelastomer thermoplastic vulcanizate, fluoroplastic, hydrogenated nitrile rubber, melamine-formaldehyde resin, tetrafluoroethylene/perfluoromethylvinyl ether, natural rubber, ethylene vinyl acetate, nitrile butyl rubber, nylon, nylon 6, nylon 610, nylon 612, nylon 63, nylon 64, nylon 66, perfluoroalkoxy (tetrafluoroethylene/perfluoromethylvinyl ether), phenolic resin, polyacetal, polyacrylate, polyamide, polyamide thermoset plastic, polyamide-imide, polybutene, polybutylene, polycarbonate, polyester, polyester thermoplastic, thermoplastic elastomer, polyesteretherketone, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyimide, polymethylmethacrylate, polyolefin, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polytetrafluoroethylene, polyurethane, polyurethane elastomer, polyvinyl chloride, polyvinylidene fluoride, ethylene propylene dimethyl/polypropylene thermoplastic vulcanizate, silicone, silicone-thermoplastic vulcanizate, silicone/polyacrylate, silcone/polyethylene terephthalate, thermoplastic polyurethane, thermoplastic polyurethane elastomer, thermoplastic polyurethane vulcanizate, polyurethane/polyamide thermoplastic elastomer, thermoplastic silicone vulcanizate, thermoplastic urethane, thermoplastic urethane elastomer, tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride, polyamide-imide, and combinations thereof.

60. The method of claim 54 wherein said admixing further comprises admixing

(iii) conductive particulate selected from the group consisting of conductive carbon black, conductive carbon fiber, conductive carbon nanotubes, conductive graphite powder, conductive graphite fiber, bronze powder, bronze fiber, steel powder, steel fiber, iron powder, iron fiber, copper powder, copper fiber, silver powder, silver fiber, aluminum powder, aluminum fiber, nickel powder, nickel fiber, wolfram powder, wolfram fiber, gold powder, gold fiber, copper-manganese alloy powder, copper-manganese fiber, and combinations thereof.

61. The method of claim 60 further comprising coating, prior to said admixing, conductive particles of said particulate with a coating to provide coated conductive particles as said conductive particulate, said conductive particles having a first surface tension between said conductive particles and said fluoropolymer, said coated conductive particles having a second surface tension between said coated conductive particles and said fluoropolymer, said second surface tension less than said first surface tension.

62. The method of claim 60 wherein said conductive particulate comprises conductive particles and essentially all of said conductive particles admixed in said admixing independently have a cross-sectional diameter from about 0.1 microns to about 100 microns.

63. The method of claim 54 wherein said admixing admixes a dispersed phase of said elastomer precursor gum into a continuous phase of said polymer.

64. The method of claim 54 wherein said admixing admixes a dispersed phase of said polymer into a continuous phase of said elastomer precursor gum.

65. The method of claim 54 wherein said admixing admixes said polymer and said elastomer precursor gum into an interpenetrated structure.

66. The method of claim 54 wherein said admixing admixes said polymer and said elastomer precursor gum into an admixture, said method further comprising

(b) curing said admixture.

67. The method of claim 66 wherein said curing comprises irradiating said admixture composition with radiation.

68. The method of claim 67 wherein said radiation is selected from the group consisting of ultraviolet radiation, infrared radiation, ionizing radiation, electron beam radiation, x-ray radiation, an irradiating plasma, a discharging corona, and a combination of these.

69. The method of claim 66 wherein said curing comprises admixing a curing agent into said admixture wherein

(i) when said elastomer precursor gum is a precursor gum for fluoroelastomer, said curing agent is selected from the group consisting of a bisphenol, a peroxide, and a combination thereof;

(ii) when said elastomer precursor gum is a precursor gum for acrylic acid ester rubber/polyacrylate rubber, said curing agent is selected from the group consisting of a sulfur and surfactant blend, an amine, an epoxide, and a combination thereof;

(iii) when said elastomer precursor gum is a precursor gum for ethylene acrylic rubber, said curing agent is selected from the group consisting of a peroxide, an amine, and a combination thereof;

(iv) when said elastomer precursor gum is a precursor gum for silicone, said curing agent is platinum;

(v) when said elastomer precursor gum is a precursor gum for nitrile butyl rubber, said curing agent is selected from the group consisting of a peroxide, sulfur, and a combination thereof;

(vi) when said elastomer precursor gum is a precursor gum for hydrogenated nitrile rubber, said curing agent is selected from the group consisting of a peroxide, sulfur, and a combination thereof;

(vii) when said elastomer precursor gum is a precursor gum for natural rubber, said curing agent is sulfur;

(viii) when said elastomer precursor gum is a precursor gum for polyurethane, said curing agent is selected from the group consisting of a peroxide, a glycol, an amine, a multi-functional alcohol having a plurality of reduction groups for reducing isocyanatyl groups, and a combination thereof; and

(ix) when said elastomer precursor gum is a precursor gum for styrene butadiene rubber, said curing agent is selected from the group consisting of sulfur, a peroxide, and a combination thereof.

70. The method of claim 54 wherein said admixing admixes said polymer and said elastomer precursor gum into an admixture, said method further comprising

(b) forming said admixture into a precursor article of an article;

and

(c) curing said precursor article to provide said admixture composition as a formed composition.

71. The method of claim 70 wherein said curing comprises irradiating said precursor article with radiation.

72. The method of claim 71 wherein said radiation is selected from the group consisting of ultraviolet radiation, infrared radiation, ionizing radiation, electron beam radiation, x-ray radiation, an irradiating plasma, a discharging corona, and a combination of these.

73. The method of claim 70 wherein said curing comprises admixing, prior to said forming, a curing agent into said admixture wherein

(i) when said elastomer precursor gum is a precursor gum for fluoroelastomer, said curing agent is selected from the group consisting of a bisphenol, a peroxide, and a combination thereof;

(ii) when said elastomer precursor gum is a precursor gum for acrylic acid ester rubber/polyacrylate rubber, said curing agent is selected from the group consisting of a sulfur and surfactant blend, an amine, an epoxide, and a combination thereof;

(iii) when said elastomer precursor gum is a precursor gum for ethylene acrylic rubber, said curing agent is selected from the group consisting of a peroxide, an amine, and a combination thereof;

(iv) when said elastomer precursor gum is a precursor gum for silicone, said curing agent is platinum;

(v) when said elastomer precursor gum is a precursor gum for nitrile butyl rubber, said curing agent is selected from the group consisting of a peroxide, sulfur, and a combination thereof;

(vi) when said elastomer precursor gum is a precursor gum for hydrogenated nitrile rubber, said curing agent is selected from the group consisting of a peroxide, sulfur, and a combination thereof;

(vii) when said elastomer precursor gum is a precursor gum for natural rubber, said curing agent is sulfur;

(viii) when said elastomer precursor gum is a precursor gum for polyurethane, said curing agent is selected from the group consisting of a peroxide, a glycol, an amine, a multi-functional alcohol having a plurality of reduction groups for reducing isocyanatyl groups, and a combination thereof; and

(ix) when said elastomer precursor gum is a precursor gum for styrene butadiene rubber, said curing agent is selected from the group consisting of sulfur, a peroxide, and a combination thereof.

74. The method of claim 54 wherein said admixing is achieved with any of batch polymer mixer, a roll mill, a continuous mixer, a single-screw mixing extruder, and a twin-screw extruder mixing extruder.

75. An admixture made by a process according to the method of claim 54.

76. An admixture made by a process according to the method of claim 60.

77. An admixture made by a process according to the method of claim 66.

78. An article made by a process according to the method of claim 70.

58. The method of any of claims and 55 and 56 wherein said fluororelastomer is selected from the group consisting of

(i) vinylidene fluoride/hexafluoropropylene copolymer fluoroelastomer having from about 66 weight percent to about 69 weight percent fluorine and a Mooney viscosity of from about 0 to about 130 ML₁₊₁₀ at 121 degrees Celsius,

(ii) vinylidene fluoride/perfluorovinyl ether/tetrafluoroethylene terpolymer fluoroelastomer having at least one cure site monomer and from about 64 weight percent to about 67 weight percent fluorine and a Mooney viscosity of from about 50 to about 100 ML₁₊₁₀ at 121 degrees Celsius,

(iii) tetrafluoroethylene/propylene/vinylidene fluoride terpolymer fluoroelastomer having from about 59 weight percent to about 63 weight percent fluorine and a Mooney viscosity of from about 25 to about 45 ML₁₊₁₀ at 121 degrees Celsius,

(iv) tetrafluoroethylene/ethylene/perfluorovinyl ether terpolymer fluoroelastomer having at least one cure site monomer and from about 60 weight percent to about 65 weight percent fluorine and a Mooney viscosity of from about 40 to about 80 ML₁₊₁₀ at 121 degrees Celsius,

(v) vinylidene fluoride/hexafluoropropylene/tetrafluoroethylene terpolymer fluoroelastomer having at least one cure site monomer and from about 66 weight percent to about 72.5 weight percent fluorine and a Mooney viscosity of from about 15 to about 90 ML₁₊₁₀ at 121 degrees Celsius,

(vi) tetrafluoroethylene/propylene copolymer fluoroelastomer having about 57 weight percent fluorine and a Mooney viscosity of from about 25 to about 115 ML₁₊₁₀ at 121 degrees Celsius,

(vii) tetrafluoroethylene/ethylene/perfluorovinyl ether/vinylidene fluoride tetrapolymer fluoroelastomer having at least one cure site monomer and from about 59 weight percent to about 64 weight percent fluorine and a Mooney viscosity of from about 30 to about 70 ML₁₊₁₀ at 121 degrees Celsius,

(viii) tetrafluoroethylene/perfluorovinyl ether copolymer fluoroelastomer having at least one cure site monomer and from about 69 weight percent to about 71 weight percent fluorine and a Mooney viscosity of from about 60 to about 120 ML₁₊₁₀ at 121 degrees Celsius, fluoroelastomer corresponding to the formula

[-TFE_q-HFP_r-VdF_s-]_d

and

(ix) combinations thereof,

wherein TFE is essentially a tetrafluoroethyl block, HFP is essentially a hexfluoropropyl block, and VdF is essentially a vinylidyl fluoride block, and products qd and rd and sd collectively provide proportions of TFE, HFP, and VdF whose values are within element 101 of FIG. 1.