A laminate film including a first polyolefin layer comprising of a blend of 50-95% ethylene-propylene copolymer and 50-5% ethylene polar terpolymer with a polar polymer layer on one side of said first polyolefin resin-containing layer is disclosed. The laminate film could further have additional lay
A laminate film including a first polyolefin layer comprising of a blend of 50-95% ethylene-propylene copolymer and 50-5% ethylene polar terpolymer with a polar polymer layer on one side of said first polyolefin resin-containing layer is disclosed. The laminate film could further have additional layers such as a second polyolefin resin-containing layer, a metal layer, or combinations thereof.
대표청구항▼
The invention claimed is: 1. A laminate film comprising: a first polyolefin resin layer comprising 50-95 wt. % ethylene-propylene copolymer and 5-50 wt. % ethylene polar terpolymer, the ethylene polar terpolymer comprising, an ethylene co-monomer, a butyl acrylate co-monomer or a methyl acrylate co
The invention claimed is: 1. A laminate film comprising: a first polyolefin resin layer comprising 50-95 wt. % ethylene-propylene copolymer and 5-50 wt. % ethylene polar terpolymer, the ethylene polar terpolymer comprising, an ethylene co-monomer, a butyl acrylate co-monomer or a methyl acrylate co-monomer, and a maleic anhydride co-monomer or a glycidyl methacrylate co-monomer; and a layer comprising a polar polymer on one side of the first polyolefin resin layer. 2. The laminate film of claim 1, wherein the ethylene polar terpolymer comprises 25 wt. % or less butyl acrylate co-monomer and methyl acrylate co-monomer. 3. The laminate film of claim 1, wherein an ethylene content of the ethylene-propylene copolymer is 0.5 to 70 mole %. 4. The laminate film of claim 1, wherein the polar polymer is an ethylene vinyl alcohol, polyvinyl alcohol, amorphous nylon, polyetheramine or blends thereof. 5. The laminate film of claim 1, wherein the polar polymer comprises an ethylene vinyl alcohol and an ethylene content of the ethylene vinyl alcohol is at least 48 mole % ethylene. 6. The laminate film of claim 1, wherein the polar polymer comprises a polyetheramine comprising a copolymer of bis-phenol A diglycidyl ether and at least 30 wt. % resorcinol diglycidyl ether with ethanolamine. 7. The laminate film of claim 1, further comprising a second polyolefin resin layer on the first polyolefin resin layer. 8. The laminate film of claim 7, wherein the second polyolefin resin layer comprises an isotactic propylene homopolymer. 9. The laminate film of claim 7, further comprising a third polyolefin resin layer on the second polyolefin resin layer opposite the side with the first polyolefin resin layer. 10. The laminate film of claim 9, wherein the third polyolefin resin layer comprises a heat-sealable polyolefin selected from the group consisting of propylene copolymers, terpolymers, polyethylene and combinations thereof. 11. The laminate film of claim 10, wherein the heat-sealable layer comprises an antiblock component selected from the group consisting of amorphous silicas, aluminosilicates, sodium calcium aluminum silicate, a crosslinked silicone polymer, and polymethylmethacrylate. 12. The laminate film of claim 9, wherein the third polyolefin resin layer is a winding layer comprising a crystalline polypropylene and an inorganic antiblocking agent. 13. The laminate film of claim 12, wherein the winding layer is a discharge treated winding layer. 14. The laminate film of claim 13, wherein the winding layer is laminated, coated with an adhesive or coated with an ink. 15. The laminate film of claim 12, wherein the winding layer comprises an antiblock component selected from the group consisting of amorphous silicas, aluminosilicates, sodium calcium aluminum silicate, a crosslinked silicone polymer, and polymethylmethacrylate. 16. The laminate film of claim 9, wherein the third polyolefin resin layer is a matte winding layer having a roughened surface and comprising a block copolymer blend of polypropylene and one or more other polymers, and wherein the third poly has a roughened surface. 17. The laminate film of claim 1, wherein the first polyolefin resin layer is a discharge-treated polyolefin resin layer. 18. The laminate film of claim 1, wherein the polar polymer resin layer is a discharge-treated polar polymer resin layer. 19. The laminate film of claim 18, wherein the discharge-treated polar polymer resin layer has a discharge-treated surface formed in an atmosphere of CO2 and N2. 20. The laminate film of claim 1, further comprising a vacuum deposited metal layer on the polar polymer resin layer. 21. The laminate film of claim 20, wherein the metal layer has a thickness of about 5 to 100 nm. 22. The laminate film of claim 20, wherein the metal layer has an optical density of about 1.5 to 5.0. 23. The laminate film of claim 20, wherein the metal layer comprises aluminum. 24. The laminate film of claim 1, wherein the laminate film is an extruded laminate film. 25. The laminate film of claim 1, wherein the film is for packaging a product. 26. The laminate film of claim 25, wherein the product is a food product.
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