Multilayer film constructions
AssigneeAllied-Signal Inc.
InventorsHee-Teck Kim, Thomas C. Long
Life of this patent
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Abstract
The present invention provides a multilayer film structure comprising at least one fluoropolymer film, at least one thermoplastic polymer film, and at least one adhesive layer selected from the group consisting of alkyl ester copolymers of an olefin and an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, modified polyolefins comprising an olefin and a functional moiety selected from the group consisting of unsaturated polycarboxylic acids and acid anhydrides, and blends of the alkyl ester copolymers and the modified polyolefins, wherein the multilayer film exhibits high adhesion strength, and good moisture and gas barrier properties.
Claims17
A multilayer film comprising:
- a) at least one fluoropolymer layer;
- b) at least one polyester layer, said polyester layer is adjacent to said fluoropolymer layer;
- and
- c) at least one adhesive layer selected from the group consisting of alkyl ester copolymers of an olefin having about 2 to about 8 carbon atoms and an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, modified polyoloefins comprising an olefin of about 2 to about 8 carbon atoms and a functional moiety selected from the group consisting of unsaturated carboxylic acids and acid anhydrides, and blends of said alkyl ester copolymers and said modified polyolefins, wherein said adhesive layer composition is interposed between each polymer layer.
A multilayer film comprising:
- a) at least one fluoropolymer layer selected from the group consisting of homopolymers and copolymers of polychlorotrifluoroethylene;
- b) at least one polyester layer, said polyester layer is adjacent to said fluoropolymer layer;
- and
- c) at least one adhesive layer selected from the group consisting of alkyl ester copolymers of an olefin having about 2 to about 8 carbon atoms and an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, modified polyolefins comprising an olefin of about 2 to about 8 carbon atoms and a function moiety selected from the group consisting of unsaturated carboxylic acids and acid anhydrides, and blends of said alkyl ester copolymers and said modified polyolefins, wherein said adhesive layer composition is interposed between each polymer layer.
Dependencies are inferred from the claim text.