EP0037745A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Waterproof protective covers comprising a film of highly fluorinated ion exchange polymer
Assignee: EIDP Inc
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Filing: 1981-04-08
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Granted: —
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Expires: 2001-04-08
Abstract
Abstract A protective garment, composite fabric or waterproof protective cover fabricated at least in part from a fabric which contains a layer of a highly fluorinated ion exchange polymer having functionality of the sulfonic, sulfonamide, carboxylic or carboxamide type in the form of an alkali metal, ammonium or amine salt.
Inventors
- 👤 Walter Gustav Grot
- 👤 Joseph Tracy Rivers
- 👤 Raimund Heinrich Silva
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 05:15
CPC Classifications
A; A62; A62B; A62B17/00; A41; A41D; A41D31/00; A41D31/04; A41D31/08; A41D31/085; A62D; A62D5/00; C; C08; C08J; C08J5/00; C08J5/20; C08J5/22; C08J5/2206; C08J5/2218; C08J5/2231; C08J5/2237; C08J2327/00; C08J2327/02; C08J2327/12
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
96 words
A protective garment characterised by being fabricated at least in part from a composite fabric containing as essential component a continuous film of a highly fluorinated ion exchange polymer having at least one kind of functional group selected from alkali metal salts of, ammonium salts of and amine salts of at least one of sulfonic acid, sulfonamide, monosubstituted sulfonamide, carboxylic acid, carboxamide and monosubstituted carboxamide groups, there being at least one fluorine atom attached to each carbon atom to which each said functional group is attached, said polymer having an equivalent weight no greater than 2000.
Claim 2
Dependent Claim
96 words
A protective garment characterised by being fabricated at least in part from a composite fabric containing as essential component a continuous film of a highly fluorinated ion exchange polymer having at least one kind of functional group selected from alkali metal salts of, ammonium salts of and amine salts of at least one of sulfonic acid, sulfonamide, monosubstituted sulfonamide, carboxylic acid, carboxamide and monosubstituted carboxamide groups, there being at least one fluorine atom attached to each carbon atom to which each said functional group is attached, said polymer having an equivalent weight no greater than 2000.
Claim 3
Dependent Claim
18 words
A protective grarment according to claim 1, wherein all of the components of said composite fabric are hydrophilic.
Claim 4
Dependent Claim
16 words
A protective garment according to claim 1 or 2 wherein said polymer is a perfluorinated polymer.
Claim 5
Dependent Claim
30 words
A protective garment according to claim 1, 2 or 3, wherein said polymer has an equivalent weight no greater than 1500, and the film is 2.5 to 125 micrometers thick.
Claim 6
Dependent Claim
16 words
A protective garment according to claim 4, wherein the film is 10 to 50 micrometers thick.
Claim 7
Dependent Claim
21 words
A protective garment according to any one of the preceding claims wherein said composite fabric further comprises a microporous polytetrafluoroethylene cloth.
Claim 8
Dependent Claim
31 words
A protective garment according to any one of the preceding claims wherein said composite fabric further comprises a component fabric of fibers of poly-meta-phenylene isophthalamide, poly-para-phenylene terephthalamide or a blend thereof.
Claim 9
Dependent Claim
40 words
8 . A protective garment according to any one of the preceding claims wherein said composite fabric further comprises a component fabric of fibers of polyhexamethylene adipamide, polyhexamethylene decanedicarboxamide, polyhexamethylene dodecanedicarboxamide, poly-epsilon-caproamide or the polyamide of bis-para-aminocyclohexylmethane and dodecanedicarboxylic acid.
Claim 10
Dependent Claim
60 words
A protective garment according to claim 7 or 8 wherein said composite fabric consists of one layer of said continuous film and one layer of component fabric, and said garment is fabricated from said composite fabric such that said film is disposed toward the outside of said garment and said component fabric is disposed toward the inside of said garment.
Claim 11
Dependent Claim
88 words
A composite fabric characterised by comprising a microporous polytetrafluoroethylene cloth and a continuous film of a highly fluorinated ion exchange polymer having at least one kind of functional group selected from alkali metal salts of, ammonium salts of and amine salts of at least one of sulfonic acid, sulfonamide, monosubstituted sulfonamide, carboxylic acid, carboxamide and monosubstituted carboxamide groups, there being at least one fluorine atom attached to each carbon atom to which each said functional group is attached, said polymer having an equivalent weight no greater than 2000.
Claim 12
Dependent Claim
88 words
A composite fabric characterised by comprising a microporous polytetrafluoroethylene cloth and a continuous film of a highly fluorinated ion exchange polymer having at least one kind of functional group selected from alkali metal salts of, ammonium salts of and amine salts of at least one of sulfonic acid, sulfonamide, monosubstituted sulfonamide, carboxylic acid, carboxamide and monosubstituted carboxamide groups, there being at least one fluorine atom attached to each carbon atom to which each said functional group is attached, said polymer having an equivalent weight no greater than 2000.
Claim 13
Dependent Claim
19 words
A composite fabric according to claim 10 wherein said composite fabric further comprises at least one other component fabric.
Claim 14
Dependent Claim
100 words
A waterproof protective cover characterised by being fabricated at least in part from a composite fabric, said fabric containing as essential component thereof a continuous film of a highly fluorinated ion exchange polymer having at least one kind of functional group selected from alkali metal salts of, ammonium salts of and amine salts of at least one of sulfonic acid, sulfonamide, monosubstituted sulfonamide, carboxylic acid, carboxamide and monosubstituted carboxamide groups, there being at least one fluorine atom attached to each carbon atom to which each said functional group is attached, said polymer having an equivalent weight no greater than 2000.
Claim 15
Dependent Claim
100 words
A waterproof protective cover characterised by being fabricated at least in part from a composite fabric, said fabric containing as essential component thereof a continuous film of a highly fluorinated ion exchange polymer having at least one kind of functional group selected from alkali metal salts of, ammonium salts of and amine salts of at least one of sulfonic acid, sulfonamide, monosubstituted sulfonamide, carboxylic acid, carboxamide and monosubstituted carboxamide groups, there being at least one fluorine atom attached to each carbon atom to which each said functional group is attached, said polymer having an equivalent weight no greater than 2000.
Claim 16
Dependent Claim
17 words
A waterproof protective cover according to claim 12 which is a tent or shelter, or a tarpaulin.
References Cited (Backward Citations)
FR1600355A
Cited
US3909378A
Cited
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