Activated polymer materials and process for making same

• US 4,204,018 A
• Filed: 07/26/1977
• Issued: 05/20/1980
• Est. Priority Date: 05/19/1972
• Status: Expired due to Term

• Current Assignee: Bruce S. Bernstein, Ramesh C. Kapoor, Seymour Hyman
• Original Assignee: Bruce S. Bernstein, Ramesh C. Kapoor, Seymour Hyman
• Inventors: Bernstein, Bruce S., Hyman, Seymour, Kapoor, Ramesh C.
• Primary Examiner(s): Silverman, Stanley S.
• Application Number:
  US05/819,538
• Time in Patent Office: 1,029 Days
• Field of Search: 156/306, 428/96, 428/515, 428/921, 428/922, 428/245, 428/246, 428/265, 428/286, 428/297, 428/480, 428/343, 428/354, 428/229, 428/518, 428/138, 428/255, 428/285, 428/287, 428/443 , 428/461, 428/463, 428/474, 428/483, 428/508, 428/519, 428/520, 239/34, 239/54, 424/21, 424/19, 424/16, 424/32, 424/33, 424/178, 424/81, 260/DIG. 15, 260/DIG. 21
• US Class Current: 442/38
• CPC Class Codes: A01N 25/34 Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• CPC Class Codes: B32B 2305/08 Reinforcements
• CPC Class Codes: B32B 2307/21 Anti-static
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/12 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 27/18 characterised by the use of special additives
• CPC Class Codes: C08J 7/0427 with only one layer of a composition containing a polymer binder with more layers C08J7/042
• CPC Class Codes: C08J 7/043 Improving the adhesiveness of the coatings per se, e.g. forming primers adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50
• CPC Class Codes: C08J 7/044 Forming conductive coatings; Forming coatings having anti-static properties
• CPC Class Codes: C08K 5/0075 Antistatics
• CPC Class Codes: Y10S 428/907 Resistant against plant or animal attack
• CPC Class Codes: Y10S 428/921 Fire or flameproofing
• CPC Class Codes: Y10S 428/922 Static electricity metal bleed-off metallic stock
• CPC Class Codes: Y10T 428/31652 Of asbestos
• CPC Class Codes: Y10T 428/31692 Next to addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31699 Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/31739 Nylon type
• CPC Class Codes: Y10T 428/31786 Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31797 Next to addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31884 Regenerated or modified cellulose
• CPC Class Codes: Y10T 428/31909 : Next to second addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31924 : Including polyene monomers
• CPC Class Codes: Y10T 428/31928 : Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 442/164 : Including a preformed film, foil, or sheet

Abstract

This invention concerns non-porous, polymeric articles having active properties, and methods for producing such articles. Plastic, rubber, or other natural and synthetic polymeric articles are provided with active chemical and/or physical properties, such as, antibacterial, antifungal, pesticidal, insecticidal, animal repellent, odorous, antistatic, electrically conductive or other properties or combinations of properties, by applying to a surface of the article selected active agents which are capable of migrating or moving throughout the body of the article to impart an effective level of activity throughout the article and/or on a surface other than the one to which the activating agents have been applied.

Claims

1. A polymeric article having antistatic properties comprising

a solid, non-porous, polymeric substrate, and

a solid, non-porous layer of a polymeric composition adherently applied to at least one surface of said substrate, said composition containing at least one antistatically active agent distributed within said polymeric composition, and capable of migrating from said layer into and throughout said substrate, said agent being present in said layer in sufficient amount so that upon migration from said layer into said substrate an effective level of antistatic activity is provided throughout said substrate and on at least one other surface of said substrate which is not in direct contact with said layer.

2. The article of claim 1 wherein the amount of antistatically active agent in said layer is in excess of the amount needed to provide an initial effective level of antistatic activity throughout said article, said excess amount of said agent providing a reservoir of said agent in said layer for the maintenance of an effective level of antistatic activity in said article by replenishment of said agent from said reservoir.

3. The article of claim 1 wherein said substrate is a material selected from the group consisting of a lower polyolefin, polyvinyl chloride, polyvinyl fluoride, polychlorotrifluoroethylene, polyester urethane, polycarbonate, polyethylene terephthalate, polyvinylidene chloride, polybenzimidazole, ethylene-acrylic acid copolymer ionomer, cellulose acetate, regenerated cellulose, polyamide and multilayer laminated materials.

4. The polymeric article of claim 1 wherein said solid, non-porous polymeric substrate is a film of polyvinyl chloride, and said solid, non-porous layer of a polymeric composition adherently applied to one surface of said substrate is a polyvinyl chloride plastisol containing said antistatically active agent, and

said article further comprising a solid, non-porous film of polyvinyl chloride bonded to said layer.

5. The article of claim 1 further comprising a second material bonded to said layer on the surface not contacted by said substrate.

6. The article of claim 5 wherein said second material is selected from the group consisting of metal, wood, plastic, particle board, paper, textile, asbestos, multilayer laminated elements.

7. A polymeric article having active antistatic properties comprising

a substrate comprising a plurality of fibers of solid, non-porous polymeric material, and

a solid layer of a polymeric composition applied to at least one surface of said substrate in contact with at least a portion of said fibers, said composition containing at least one antistatically active agent distributed within said polymeric composition and capable of migrating from said layer into and throughout those fibers of said substrate which are in contact with said layer, said agent being present in said layer in sufficient amount so that upon migration from said layer into said fibers of said substrate an effective level of antistatic activity is provided throughout each of said fibers which is in contact with said layer, and on at least one other surface of each of said fibers which is not in direct contact with said layer.

8. The article of claim 7 further comprising a second material bonded to said layer.

9. The article of claim 8 wherein said second material is selected from the group consisting of metal, wood, plastic, particle board, paper, textile, asbestos, multilayer laminated elements.

10. The article of claim 7 wherein the amount of antistatically active agent in said layer is in excess of the amount needed to provide an initial effective level of antistatic activity throughout said article, said excess amount of said agent providing a reservoir of said agent in said layer for the maintenance of an effective level of antistatic activity in said article by replenishment of said agent from said reservoir.

11. The article of claim 7 wherein said substrate is a material selected from the group consisting of a lower polyolefin, polyvinyl chloride, polyvinyl fluoride, polychlorotrifluoroethylene, polyester urethane, polycarbonate, polyethylene terephthalate, polyvinylidene chloride, polybenzimidazole, ethylene-acrylic acid copolymer ionomer, cellulose acetate, regenerated cellulose and polyamide.

12. A polymeric article having active antistatic properties comprising

a solid, non-porous, polymeric substrate,

a solid, non-porous layer of a polymeric composition adherently applied to at least one surface of said substrate, said composition containing at least one antistatically active agent distributed within said polymeric composition, and capable of migrating from said layer into and throughout said substrate, said agent being present in said layer in sufficient amount so that upon migration from said layer into said substrate an effective level of antistatic activity is provided throughout said substrate and on at least one other surface of said substrate which is not in direct contact with said layer, and

a polymer film bonded to said layer on the surface not contacted by said substrate.

13. The article of claim 12 wherein the amount of antistatically active agent in said layer is in excess of the amount needed to provide an initial effective level of antistatic activity throughout said article, said excess amount of said agent providing a reservoir of said agent in said layer for the maintenance of an effective level of antistatic activity in said article by replenishment of said agent from said reservoir.

14. The article of claim 12 wherein said substrate is a material selected from the group consisting of a lower polyolefin, polyvinyl chloride, polyvinyl fluoride, polychlorotrifluoroethylene, polyester urethane, polycarbonate, polyethylene terephthalate, polyvinylidene chloride, polybenzimidazole, ethylene-acrylic acid copolymer ionomer, cellulose acetate, regenerated cellulose, polyamide and multilayer laminated materials.

15. The article of claim 12 wherein said layer contains a reinforcing member.

16. The article of claim 15 wherein said reinforcing member is a nylon scrim.