EP0132583A2
Expired / Lapsed
EP
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Coextrusion of thermoplastic fluoropolymers with thermoplastic polymers
Assignee: Solvay Solexis Inc
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Filing: 1984-06-19
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Granted: —
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Expires: 2004-06-19
Abstract
Abstract The present invention is a multilayered coextruded film and process of coextruding. The coextruded film comprises at least one thermoplastic fluoropolymer layer and at least one thermoplastic polymeric layer adjacent to the thermoplastic fluoropolymer layer. There is preferably a coextruded adhesive layer between each thermoplastic fluoropolymer layer and each thermoplastic polymeric layer. The coextruded film can be oriented in at least one direction and/or embossed without delamination, fibrillating, or splitting.
Inventors
- 👤 Ferdinand Anthony Deantonis
- 👤 William Henry Murrell
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 17:57
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B3/00; B32B3/26; B32B3/30; B32B38/00; B32B38/06; B32B7/00; B32B7/04; B32B7/12; B32B2307/00; B32B2307/50; B32B2307/514; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/036
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
23 words
A coextruded film comprising at least one thermoplastic fluoropolymer layer, and at least one thermoplastic polymeric layer adjacent to the thermoplastic fluoropolymer layer.
Claim 2
Dependent Claim
23 words
A coextruded film comprising at least one thermoplastic fluoropolymer layer, and at least one thermoplastic polymeric layer adjacent to the thermoplastic fluoropolymer layer.
Claim 3
Dependent Claim
22 words
The film as recited in claim 1 further comprising an adhesive layer between each thermoplastic fluoropolymer layer and each thermoplastic polymeric layer.
Claim 4
Dependent Claim
36 words
The film as recited in claim 1 wherein the thermoplastic fluoropolymer is selected from the class consisting of ethylene chlorotrifluorethylene copolymer, polyvinylidene fluoride, ethylene tetrafluoroethylene copolymer, fluorinated ethylene-propylene copolymer, polychlorotrifluoroethylene and vinylidene fluoride and tetrafluoroethylene copolymer.
Claim 5
Dependent Claim
37 words
The film as recited in claim 1 wherein the thermoplastic polymeric layer is made from a thermoplastic selected from the class consisting of polyamide, polyethylene, polypropylene, polyolefin copolymers, ionomers, polystyrenes, polycarbonates, acrylic polymers and copolymers, and fluoropolymers.
Claim 6
Dependent Claim
58 words
The film as recited in claim 1 wherein the adhesive layer comprises a blend of a first modified ethylene vinyl acetate copolymer having a melt index of from about 0.1 to 10 g/10 minutes and the second modified ethylene vinyl acetate copolymer having a melt index from 5 to 1000 g/10 minutes, the second modified ethylene vinyl acetate.
Claim 7
Dependent Claim
17 words
The film as recited in claim 1 wherein the film is oriented in at least one direction.
Claim 8
Dependent Claim
12 words
The film as recited in claim 6 wherein the film is embossed.
Claim 9
Dependent Claim
26 words
A process of coextruding a multilayer film comprising the step of coextruding at least one thermoplastic fluoropolymer layer adjacent to at least one thermoplastic polymeric layer.
Claim 10
Dependent Claim
26 words
A process of coextruding a multilayer film comprising the step of coextruding at least one thermoplastic fluoropolymer layer adjacent to at least one thermoplastic polymeric layer.
Claim 11
Dependent Claim
26 words
The process as recited in claim 8 further comprising the step of coextruding an adhesive layer between each thermoplastic fluoropolymer layer and each thermoplastic polymeric layer.
Claim 12
Dependent Claim
15 words
The process as recited in claim 8 further comprising the step of embossing the film.
Claim 13
Dependent Claim
20 words
The process as recited in claim 10 further comprising the step of orienting the film in at least one direction.
References Cited (Backward Citations)
No citation records indexed.
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