US 6,306,520 B1 · Laminated film or sheet process for producing same and laminated structure formed using same

Abstract

There are provided; a laminated film or sheet formed by adhesively integrating a resin layer (1) of an acrylic resin with a resin composition layer (2) of a polyolefin resin composition, the polyolefin resin composition comprising an ethylene based copolymer (a) prepared by polymerizing ethylene with at least one compound selected from the group consisting of unsaturated carboxylic acids, unsaturated carboxylic esters, unsaturated carboxylic anhydrides and vinyl acetate, a polyethylene resin (b) excluding the copolymer (a), and a polypropylene resin (c), which is characterized in that the layers (1) and (2) are adhesively integrated with each other to the satisfaction, even if no layer of an adhesive agent is interposed between them; and a laminated structure formed by adhesively integrating the laminated film or sheet with a substrate of a polyolefin resin, which is particularly suitable for uses such as interior or exterior car parts, electric appliances, parts of miscellaneous goods and signboards.

Claims14

Dependent claims

A laminated film or sheet formed by adhesively integrating:

(1) a resin layer comprising an acrylic resin with
(2) a resin composition layer comprising a resin composition, the resin composition comprising:
(a) 100 parts by weight of an ethylene based copolymer prepared by polymerizing ethylene with at least one compound selected from the group consisting of unsaturated carboxylic acids, unsaturated carboxylic esters, unsaturated carboxylic anhydrides and vinyl acetate,
(b) 0 to 10 parts by weight of a polyethylene resin based on 100 parts by weight of the ethylene based copolymer (a), providing that the polyethylene resin (b) excludes the copolymer (a), and
(c) 1 to 30 parts by weight of a polypropylene resin based on 100 parts by weight of the copolymer (a);
and
wherein the acrylic resin comprises an acrylic resin composition comprising:
50 to 95% by weight of an acrylic resin having a glass transition temperature of from 60 to 110° C. and a weight average molecular weight of 70,000 to 600,000 and
5 to 50% by weight of an acrylic polymer of a multilayered structure comprising a layer of rubber elastic.

6 more elements

Dependencies are inferred from the claim text.

Laminated film or sheet process for producing same and laminated structure formed using same

Life of this patent

Laminated film or sheet process for producing same and laminated structure formed using same

Life of this patent

Abstract

Claims14