Claims
- 1. A polymeric film, the film having two major surfaces, consisting essentially of a copolymer of ethylene and a C.sub.4 to C.sub.10 alpha olefin, wherein the two major surfaces each have a silicone coating of between 0.1 and 1.2 mg/ft.sup.2.
- 2. The film of claim 1 wherein the copolymer of ethylene and a C.sub.4 to C.sub.10 alpha olefin consists essentially of ethylene/hexene copolymer.
- 3. The film of claim 1 wherein the film is crosslinked.
- 4. The film of claim 1 wherein the film is oriented.
- 5. The film of claim 4 wherein the film is heat shrinkable.
- 6. The film of claim 1 wherein the outer surface having the silicone coating has adhered thereto a printing ink.
- 7. A multilayer polymeric film, the film having two major surfaces, comprising:
- a) a first outer layer consisting essentially of a copolymer of ethylene and a C.sub.4 to C.sub.8 alpha olefin;
- b) a second outer layer consisting essentially of a copolymer of ethylene and a C.sub.4 to C.sub.8 alpha olefin; and
- c) a core layer, disposed between the first and second outer layers, comprising an olefinic polymer different from the copolymer of the first and second outer layers;
- wherein the two major surfaces of the film each have a silicone coating of between 0.1 and 1.2 mg/ft.sup.2.
- 8. The film of claim 7 wherein the copolymer of the first and second outer layers consists essentially of ethylene/hexene copolymer.
- 9. The film of claim 7 wherein the olefinic polymer of the core layer comprises a polymer selected from the group consisting of low density polyethylene, high density polyethylene, ethylene/vinyl acetate copolymer, ethylene/acrylate copolymer, ethylene/acrylic acid copolymer, a metal neutralized salt of ethylene/acrylic acid copolymer, a metal neutralized salt of ethylene/methacrylic acid copolymer; ethylene/alpha-olefin copolymer, polypropylene, propylene/ethylene copolymer, and thermoplastic polyolefin (TPO) resin.
- 10. The film of claim 9 wherein the olefinic polymer of the core layer comprises ethylene/vinyl acetate copolymer.
- 11. The film of claim 7 wherein the film is crosslinked.
- 12. The film of claim 7 wherein the film is oriented.
- 13. The film of claim 12 wherein the film is heat shrinkable.
- 14. The film of claim 7 wherein the outer surface having the silicone coating has adhered thereto a printing ink.
- 15. A multilayer polymeric film, the film having two major surfaces, comprising:
- a) a first outer layer consisting essentially of a copolymer of ethylene and a C.sub.4 to C.sub.10 alpha olefin;
- b) a first intermediate layer comprising an olefinic polymer;
- c) a core layer comprising a copolymer of ethylene and a C.sub.3 to C.sub.10 alpha olefin;
- d) a second intermediate layer comprising an olefinic polymer; and
- e) a second outer layer consisting essentially of a copolymer of ethylene and a C.sub.4 to C.sub.10 alpha olefin;
- wherein the olefinic polymer of the first and second intermediate layers, differs from the copolymer of the first and second outer layers, and the core layer; and
- wherein the two major surfaces of the film each have a silicone coating of between 0.1 and 1.2 mg/ft.sup.2.
- 16. The film of claim 15 wherein the copolymer of the first and second outer layers consists essentially of ethylene/hexene copolymer.
- 17. The film of claim 15 wherein the olefinic polymer of the intermediate layers comprises a polymer selected from the group consisting of low density polyethylene, high density polyethylene, ethylene/vinyl acetate copolymer, ethylene/acrylate copolymer, ethylene/acrylic acid copolymer, a metal neutralized salt of ethylene/acrylic acid copolymer, a metal neutralized salt of ethylene/methacrylic acid copolymer; ethylene/alpha-olefin copolymer, polypropylene, propylene/ethylene copolymer, and thermoplastic polyolefin (TPO) resin.
- 18. The film of claim 15 wherein the film is crosslinked.
- 19. The film of claim 15 wherein the film is oriented.
- 20. The film of claim 19 wherein the film is heat shrinkable.
- 21. The film of claim 15 wherein the outer surface having the silicone coating has adhered thereto a printing ink.
- 22. A method of making a film comprising:
- a) extruding a tubular polymeric film, the film having two major surfaces, consisting essentially of a copolymer of ethylene and a C.sub.4 to C.sub.10 alpha olefin;
- b) coating one major surface of the extrudate with a coating of silicone at a concentration of between 1 and 10 mg/ft.sup.2 ;
- c) slitting the tubular film to create two plies;
- d) separating each ply; and
- e) winding each ply onto a separate take-up roll such that silicone from the coated surface transfers to the other major surface of the film.
- 23. The method of claim 22 further comprising printing the surface of the film containing the silicone, with a printing ink.
Parent Case Info
This application claims the benefit of U.S. Provisional Application Ser. No. 60/019,430, filed Jun. 7, 1996.
US Referenced Citations (6)
Foreign Referenced Citations (5)
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