Interpolymer compositions for use in sound management

• US 6,319,969 B1
• Filed: 08/12/1999
• Issued: 11/20/2001
• Est. Priority Date: 06/26/1997
• Status: Expired due to Term

• Current Assignee: The Dow Chemical Company (Dow, Inc.)
• Original Assignee: The Dow Chemical Company (Dow, Inc.)
• Inventors: Hoenig, Stephen M., Clayfield, Timothy E., Walther, Brian W., Betso, Stephen R.
• Primary Examiner(s): Cain, Edward J.
• Application Number:
  US09/374,096
• Time in Patent Office: 831 Days
• Field of Search: 524/425, 524/394, 524/300
• US Class Current: 524/300
• CPC Class Codes: B32B 27/28 comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
• CPC Class Codes: C08J 2323/08 Copolymers of ethene C08J2323/16 takes precedence
• CPC Class Codes: C08J 5/18 Manufacture of films or sheets
• CPC Class Codes: C08K 3/01 characterized by their specific function
• CPC Class Codes: C08L 23/08 Copolymers of ethene C08L23/16 takes precedence
• CPC Class Codes: C08L 23/0815 Copolymers of ethene with aliphatic 1-olefins
• CPC Class Codes: C08L 23/0838 Copolymers of ethene with aromatic monomers
• CPC Class Codes: C08L 2314/06 Metallocene or single site catalysts
• CPC Class Codes: C08L 25/08 Copolymers of styrene C08L29/08, C08L35/06, C08L55/02 take precedence
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials

Abstract

Disclosed are novel compositions of ethylene and/or α-olefin/vinyl or vinylidene interpolymers and an organic acid and a filler. Also disclosed are compositions including ethylene and/or α-olefin/vinyl or vinylidene interpolymers, an organic acid, various processing agents, coupling agents and a filler. The compositions disclosed herein are particularly useful in sound management applications, or as insulators.

Claims

1. A composition comprising:

(1) one or more non-crosslinked substantially random interpolymeric comprising

a) polymer units derived from;

i) at least one vinyl or vinylidene aromatic monomer;

or

ii) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer;

or

iii) a combination of at least one vinyl or vinylidene aromatic monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer; and

b) polymer units derived from;

i) ethylene;

or

ii) one or more C_3-20 α

-olefins;

or

iii) a combination of ethylene; and

/or one or more C_3-20 α

-olefins; and

(2) at least one organic acid or salt thereof.

2. The composition of claim 1, further comprising a processing agent, or a filler, or both.

3. The composition of claim 1 or 2, in which the substantially random interpolymer further comprises polymer units derived from one or more ethylenically unsaturated polymerizable monomers other than (1)(a) or (1)(b).

4. The composition of claim 1 and 2, further comprising a second polymer component, blended with said interpolymer.

5. The composition of claim 4, wherein

a) said substantially random interpolymer is one or more of an ethylene/styrene interpolymer, an ethylene/propylene/styrene interpolymer, or an an ethylene/styrene/norbornene interpolymer; and

b) said second polymer component is one or more of any ethylene and/or C₃-C₂₀ α

-olefin homo or interpolymer, a styrenic homopolymer, copolymer or block copolymer, or comprises vinyl acetate functionality, or halogen-containing groups.

6. The composition of claim 4, wherein said second polymer component is selected from the group consisting of ethylene-vinyl acetate (EVA), polyolefin (PO), low density polyethylene (LDPE), ethylene propylene diene monomer (EPDM), styrene butadiene co-polymer (SBS copolymer), styrene butadiene random polymer (SBR), ethylene octene co-polymer (EO);

polypropylene (PP), polypropylene copolymers (CPP), and polyvinylchloride (PVC), or mixtures thereof.

7. The composition of claim 1, wherein said substantially random interpolymer comprises from about 4.9 to about 99.99 weight percent of the total composition.

8. The composition of claim 4, wherein said substantially random interpolymer comprises from about 25 to about 95 weight percent, and said other polymer represents from about 5 to about 75 weight percent (based on the weight of said interpolymer and said second polymer).

9. The composition of claim 1, wherein said organic acid comprises from about 0.01 to about 5 weight percent of the total composition.

10. The composition of claim 2, wherein said processing agent comprises from 0.25 to about 50 weight percent of the total composition.

11. The composition of claim 2, wherein said filler comprises from 0.01 to about 95 weight percent of the total composition.

12. The composition of claim 1, wherein said organic acid is selected from the group consisting of saturated mono-, di-, and tricarboxylic acids having from 6 to 60 carbon atoms, and unsaturated mono-, di-, and tri-carboxylic acids having from 6 to 60 carbon atoms, and salts thereof.

13. The composition of claim 1, wherein said organic acid is selected from the group consisting of stearic acid, palmitic acid, and an oleic acid or a salt thereof.

14. The composition of claim 13, wherein said organic acid is stearic acid or a salt thereof.

15. The composition of claim 1, wherein said one or more organic acid or salt thereof is selected from the group consisting of stearic acid, calcium stearate, magnesium stearate, ammonium stearate, zinc stearate, stearamide, calcium oleate, magnesium oleate, and zinc oleate or mixtures thereof.

16. The composition of claim 2, wherein said processing agent is selected from the group consisting of tackifiers, oils, plasticizers and mixtures thereof.

17. The composition of claim 16, wherein said tackifier is selected from the group consisting of natural or synthetic resin materials, rosin materials and mixtures thereof.

18. The composition of claim 16, wherein said oil is selected from the group consisting of mineral, napthenic, aromatic and parafinic oils.

19. The composition of claim 16, wherein said plasticizer is selected from the group consisting of phthalate esters, trimellitate esters, polymeric plasticizers and mixtures thereof.

20. The composition of claim 2, wherein said filler is selected from the group consisting of alumina trihydrate, magnesium hydroxide, calcium hydroxide, talc, calcium carbonate, limestone, glass fibers, marble dust, cement dust, clay, feldspar, silica or glass, fumed silica, alumina, magnesium oxide, antimony oxide, zinc oxide, barium sulfate, aluminum silicate, calcium silicate, titanium dioxide, titanates, glass microspheres chalk and mixtures thereof.

21. The composition of claim 2, wherein said filler is selected from the group consisting of calcium carbonate, barium sulfate, and alumina trihydrate, and mixtures thereof.

22. The composition of claim 1, wherein said substantially random interpolymer comprises from about 8 mole percent to about 50 mole percent styrene.

23. A sound management article comprising a substrate and a sound barrier layer wherein said sound barrier layer comprises;

(1) one or more non-crosslinked substantially random interpolymers comprising

a) polymer units derived from;

i) at least one vinyl or vinylidene aromatic monomer;

or

ii) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer;

or

ii) a combination of at least one vinyl or vinylidene aromatic monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer; and

b) polymer units derived from;

i) ethylene;

or

iii) one or more C_3-20 α

-olefins;

or

iii) a combination of ethylene; and

/or one or more C_3-20 α

-olefins; and

(2) at least one organic acid or salt thereof.

24. The sound management article of claim 23, wherein the substrate is selected from the group consisting of metal, plastic, glass, natural fibers, synthetic fibers, and wood.

27. The sound management article of claim 23, further comprising a processing agent, or a filler, or both.

28. The sound management article of claim 23, in which the substantially random interpolymer further comprises polymer units derived from one or more ethylenically unsaturated polymerizable monomers other than (1)(a) or (1)(b).

29. The sound management article of claim 23, further comprising a second polymer component, blended with said interpolymer.

30. The sound management article of claim 29, wherein

a) said substantially random interpolymer is one or more of an ethylene/styrene interpolymer, an ethylene/propylene/styrene interpolymer, or an an ethylene/styrene/norbornene interpolymer, and

b) said second polymer component is one or more of any ethylene and/or C₃-C₂₀ α -olefin homo or interpolymer, a styrenic homopolymer, copolymer or block copolymer, or comprises vinyl acetate functionality, or halogen -containing groups.

31. The sound management article of claim 29, wherein said second polymer component is selected from the group consisting of ethylene-vinyl acetate (EVA), polyolefin (PO), low density polyethylene (LDPE), ethylene propylene diene monomer (EPDM), styrene butadiene co-polymer (SBS copolymer), styrene butadiene random polymer (SBR), ethylene octene co-polymer (EO);

polypropylene (PP), polypropylene copolymers (CPP), and polyvinylchloride (PVC), or mixtures thereof.

32. The sound management article of claim 23, wherein said substantially random interpolymer comprises from about 4.9 to about 99.99 weight percent of the total composition.

33. The sound management article of claim 29, wherein said substantially random interpolymer comprises from about 25 to about 95 weight percent, and said other polymer represents from about 5 to about 75 weight percent (based on the weight of said interpolymer and said second polymer).

34. The sound management article of claim 23, wherein said organic acid comprises from about 0.01 to about 5 weight percent of the total composition.

35. The sound management article of claim 27, wherein said processing agent comprises from 0.25 to about 50 weight percent of the total composition.

36. The sound management article of claim 27, wherein said filler comprises from 0.01 to about 95 weight percent of the total composition.

37. The sound management article of claim 23, wherein said organic acid is selected from the group consisting of saturated mono-, di-, and tricarboxylic acids having from 6 to 60 carbon atoms, and unsaturated mono-, di-, and tri-carboxylic acids having from 6 to 60 carbon atoms, and salts thereof.

38. The sound management article of claim 23, wherein said organic acid is selected from the group consisting of stearic acid, palmitic acid, and an oleic acid or a salt thereof.

39. The sound management article of claim 38, wherein said organic acid is stearic acid or a salt thereof.

40. The sound management article of claim 23, wherein said one or more organic acid or salt thereof is selected from the group consisting of stearic acid, calcium stearate, magnesium stearate, ammonium stearate, zinc stearate, stearamide, calcium oleate, magnesium oleate, and zinc oleate or mixtures thereof.

41. The sound management article of claim 27, wherein said processing agent is selected from the group consisting of tackifiers, oils, plasticizers and mixtures thereof.

42. The sound management article of claim 41, wherein said tackifier is selected from the group consisting of natural or synthetic resin materials, rosin materials and mixtures thereof.

43. The sound management article of claim 41, wherein said oil is selected from the group consisting of mineral, napthenic, aromatic and parafinic oils.

44. The sound management article of claim 41, wherein said plasticizer is selected from the group consisting of phthalate esters, trimellitate esters, polymeric plasticizers and mixtures thereof.

45. The sound management article of claim 27, wherein said filler is selected from the group consisting of alumina trihydrate, magnesium hydroxide, calcium hydroxide, talc, calcium carbonate, limestone, glass fibers, marble dust, cement dust, clay, feldspar, silica or glass, fumed silica, alumina, magnesium oxide, antimony oxide, zinc oxide, barium sulfate, aluminum silicate, calcium silicate, titanium dioxide, titanates, glass microspheres, chalk and mixtures thereof.

46. The sound management article of claim 27, wherein said filler is selected from the group consisting of calcium carbonate, barium sulfate, and alumina trihydrate, and mixtures thereof.

47. The sound management article of claim 23, wherein said substantially random interpolymer comprises from about 8 mole percent to about 50 mole percent styrene.

25. A process which comprises mixing

(1) one or more non-crosslinked substantially random interpolymer comprising

a) polymer units derived from;

i) at least one vinyl or vinylidene aromatic monomer;

or

ii) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer;

or

iii) a combination of at least one vinyl or vinylidene aromatic monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer; and

b) polymer units derived from;

i) ethylene;

or

ii) one or more C_3-20 α

-olefins;

or

iii) a combination of ethylene; and

/or one or more C3-20 α

-olefins; and

(2) at least one organic acid or salt thereof.

26. A composition comprising

(A) from about 5 to about 90 weight percent by weight of at least one non-crosslinked substantially random interpolymer prepared by polymerizing one or more α

-olefin monomers with one or more vinyl or vinylidene aromatic monomers, and optionally with other polymerizable ethylenically unsaturated monomer(s);

(B) from about 10 to about 94.9 percent by weight of at least one filler selected from talc, calcium carbonate, glass fibers, marble dust, cement dust, clay, feldspar, silica or glass, fumed silica, alumina, magnesium oxide, antimony oxide, zinc oxide, barium sulfate, aluminum silicate, calcium silicate, titanium dioxide, titanates, glass microspheres and chalk;

(C) from about 0.01 to about 5 weight percent of an organic acid or salt thereof; and

(D) from about 0.1 to about 10 percent by weight of at least one initiator or at least one coupling agent selected from the group consisting of organic peroxides, silanes, titanates, zirconates, multifunctional vinyl compounds and organic azides;

wherein the amounts of (A), (B), (C) and (D) are based on the total weight of (A), (B), (C) and (D).