EP0159942A2
Expired / Lapsed
EP
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Fluoropolymer composites and novel method for making them
Assignee: Saint Gobain Performance Plastics Corp
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Filing: 1985-04-11
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Granted: —
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Expires: 2005-04-11
Abstract
Abstract Fluoropolymer containing films (10-11) are separately formed and applied to substrates (12) to form novel composites. The invention process comprises the steps of: (1) separately forming a uniform film comprising a metered layer of a fluoropolymer containing material; (2) treating the substrate to facilitate film adhesion and bonding; (3) uniformly contacting at least one face of the film with a treated surface of the substrate; and (4) transferring the film material to the treated substrate with heat and pressure to obtain a smooth, uniform coated composite. By a decalcomania technique, the film may be cast in a single or multiple layers on a support member, such as a metal foil, drum or belt, and thereafter the face of the film opposite the support member is uniformly contacted with the substrate and transferred. The support member is thereafter removed or stripped from the film to expose the laminated composite surface. Alternatively, the film may be removed from the support member prior to contacting with the substrate.
Inventors
- 👤 John A. Effenberger
- 👤 Robert C. Ribbans Iii.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 09:49
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B32; B32B; B32B27/00; B32B27/06; B32B27/18; B32B27/20; B32B7/00; B32B7/04; B32B7/12; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/036; H05K1/0366; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/015; H05K2201/02; H05K2201/0203; H05K2201/0206; H05K2201/0209; H05K2201/0212; H05K2203/00; H05K2203/06; H05K2203/066
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
77 words
A method for the manufacture of a composite including a substrate and a coating matrix, which comprises the steps of: (a) separately forming a film comprising a fluoropolymer-containing material; (b) treating the substrate where necessary to facilitate film adhesion and bonding; (c) uniformly contacting at least one face of the film with a treated surface of the substrate; and (d) transferring the film to the treated substrate with heat and pressure to obtain a uniform coated composite.
Claim 2
Independent Claim
77 words
A method for the manufacture of a composite including a substrate and a coating matrix, which comprises the steps of: (a) separately forming a film comprising a fluoropolymer-containing material; (b) treating the substrate where necessary to facilitate film adhesion and bonding; (c) uniformly contacting at least one face of the film with a treated surface of the substrate; and (d) transferring the film to the treated substrate with heat and pressure to obtain a uniform coated composite.
Claim 3
Dependent Claim
13 words
A method according to claim 1 wherein the film is formed by casting.
Claim 4
Dependent Claim
17 words
A method according to claim 2 wherein the film is prepared and transferred by a decalcomania process.
Claim 5
Dependent Claim
17 words
A method according to claim 2 wherein the film is cast upon a dimensionally stable support member.
Claim 6
Dependent Claim
19 words
A method according to claim 4 wherein the support member comprises a metal foil or a compatible polymeric film.
Claim 7
Dependent Claim
19 words
A method according to claim 1 wherein the substrate is any suitable reinforcement material capable of withstanding processing conditions.
Claim 8
Dependent Claim
56 words
A method according to claim 6 wherein the substrate is selected from the group comprising glass, fiberglass, ceramics, graphite (carbon), PBI (polybenzimidazole), PTFE, polyaramides, metal including metal mesh and wire, polyolefins, polyesters, polyamides, polyimides, thermaplastics, polyphenylene sulfide, polyether oxides, polyether sulfones, polyether ketones, novoloid phenolic fibers, cotton, asbestos and other natural as well as synthetic textiles.
Claim 9
Dependent Claim
28 words
A method according to claim 1 wherein the substrate is treated with a melt adhesive, such as FEP, PFA and PCTFE and its copolymers with VF 2 .
Claim 10
Dependent Claim
18 words
A method according to claim 1 wherein the substrate is treated with a chemically reactive or contact adhesive.
Claim 11
Dependent Claim
16 words
A method according to claim 1 wherein the substrate is treated with a suitable coupling agent.
Claim 12
Dependent Claim
25 words
A method according to claim 1 wherein the matrix polymers of the film layer include a fluoroplastic, a fluoroelastomer or any blend or combination thereof.
Claim 13
Dependent Claim
18 words
A method according to claim 11 wherein the matrix contains mineral or polymeric fillers, or a combination thereof.
Claim 14
Dependent Claim
22 words
A method according to claim 12 wherein the polymeric filler is employed to form a thermally stable, wear resistant fiber or composite.
Claim 15
Dependent Claim
19 words
A method according to claim 1 wherein the film matrix is applied to the substrate in a nip-roll lamination.
Claim 16
Independent Claim
107 words
A method for the manufacture of a composite including an otherwise incompatible coating matrix and substrate, which comprises the steps of: (a) preparing the substrate face or faces with any processible polymer which facilitates adhesion to the coating matrix; (b) separately forming a film comprising a fluoropolymer-containing coating matrix material through a graduation of polymer blends such that the matrix face of the film to be contacted with the prepared substrate is compatible with it; (c) uniformly contacting said bondable surfaces of the substrate and graded film layer; and (d) transferring the film to the prepared substrate with heat and pressure to obtain a uniform coated surface.
Claim 17
Independent Claim
107 words
A method for the manufacture of a composite including an otherwise incompatible coating matrix and substrate, which comprises the steps of: (a) preparing the substrate face or faces with any processible polymer which facilitates adhesion to the coating matrix; (b) separately forming a film comprising a fluoropolymer-containing coating matrix material through a graduation of polymer blends such that the matrix face of the film to be contacted with the prepared substrate is compatible with it; (c) uniformly contacting said bondable surfaces of the substrate and graded film layer; and (d) transferring the film to the prepared substrate with heat and pressure to obtain a uniform coated surface.
Claim 18
Dependent Claim
21 words
A method according to claim 15 wherein the transferred film comprises a multiplicity of layers of the same or different composition.
Claim 19
Dependent Claim
18 words
A method according to claim 16 wherein at least one film layer comprises a metal or metallized layer.
Claim 20
Dependent Claim
65 words
A composite prepared by the process comprising the steps of: (a) separately forming a film comprising a fluoropolymer-containing material; (b) treating the substrate to facilitate film adhesion and bonding; (c) uniformly contacting at least one face of the film with a treated surface of the substrate; and (d) transferring the film to the treated substrate with heat and pressure to obtain a uniform coated composite.
Claim 21
Dependent Claim
65 words
A composite prepared by the process comprising the steps of: (a) separately forming a film comprising a fluoropolymer-containing material; (b) treating the substrate to facilitate film adhesion and bonding; (c) uniformly contacting at least one face of the film with a treated surface of the substrate; and (d) transferring the film to the treated substrate with heat and pressure to obtain a uniform coated composite.
Claim 22
Dependent Claim
13 words
A composite according to claim 18 wherein the film is formed by casting.
Claim 23
Dependent Claim
17 words
A composite according to claim 19 wherein the film is prepared and transferred by a decalcomania process.
Claim 24
Dependent Claim
17 words
A composite according to claim 19 wherein the film is cast upon a dimensionally stable support member.
Claim 25
Dependent Claim
19 words
A composite according to claim 21 wherein the support member comprises a metal foil or a compatible polymeric film.
Claim 26
Dependent Claim
19 words
A composite according to claim 16 wherein the substrate is any suitable reinforcement material capable of withstanding processing conditions.
Claim 27
Dependent Claim
56 words
A composite according to claim 23 wherein the substrate is selected from the group comprising glass, fiberglass, ceramics, graphite (carbon), PBI (polybenzimidazole), PTFE, polyaramides, metal including metal mesh and wire, polyolefins, polyesters, polyamides, polyimides, thermaplastics, polyphenylene sulfide, polyether oxides, polyether sulfones, polyether ketones, novoloid phenolic fibers, cotton, asbestos and other natural as well as synthetic textiles.
Claim 28
Dependent Claim
29 words
A composite according to claim 18 wherein the substrate is treated with a melt adhesive, such as FEP, PFA and PCTFE and its copolymers with V F 2 .
Claim 29
Dependent Claim
18 words
A composite according to claim 18 wherein the substrate is treated with a chemically reactive or contact adhesive.
Claim 30
Dependent Claim
16 words
A composite according to claim 18 wherein the substrate is treated with a suitable coupling agent.
Claim 31
Dependent Claim
25 words
A composite according to claim 18 wherein the matrix polymers of the film layer include a fluoroplastic, a fluoroelastomer or any blend or combination thereof.
Claim 32
Dependent Claim
18 words
A composite according to claim 28 wherein the matrix contains mineral or polymeric fillers, or a combination thereof.
Claim 33
Dependent Claim
18 words
A composite according to claim 29 wherein the polymeric filler is a thermally stable, wear resistant polymer material.
Claim 34
Dependent Claim
19 words
A composite according to claim 18 wherein the film mixture is applied to the substrate by a nip-roll lamination.
Claim 35
Dependent Claim
111 words
A composite for the manufacture of a composite including an otherwise incompatible coating matrix and substrate, which comprises the steps of: (a) preparing the substrate face or faces with any processible polymer which facilitates adhesion and bonding to the coating matrix; (b) separately forming a film comprising a fluoropolymer containing coating matrix material through a graduation of polymer blends such that the matrix face of the film to be contacted with the prepared substrate is compatible with it; (c) uniformly contacting the said bondable surfaces of the substrate and graded film layer; and (d) transferring the film to the prepared substrate with heat and pressure to obtain a uniform coated surface.
Claim 36
Dependent Claim
111 words
A composite for the manufacture of a composite including an otherwise incompatible coating matrix and substrate, which comprises the steps of: (a) preparing the substrate face or faces with any processible polymer which facilitates adhesion and bonding to the coating matrix; (b) separately forming a film comprising a fluoropolymer containing coating matrix material through a graduation of polymer blends such that the matrix face of the film to be contacted with the prepared substrate is compatible with it; (c) uniformly contacting the said bondable surfaces of the substrate and graded film layer; and (d) transferring the film to the prepared substrate with heat and pressure to obtain a uniform coated surface.
Claim 37
Dependent Claim
21 words
A composite according to claim 18 wherein the transferred film comprises a multiplicity of layers of the same or different compositions.
Claim 38
Dependent Claim
18 words
A composite according to claim 33 wherein at least one film layer comprises a metal or metallized layer.
References Cited (Backward Citations)
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