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EP0124236A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Fluorine-containing copolymers

Assignee: EIDP Inc
•
Filing: 1984-03-21
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Granted: —
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Expires: 2004-03-21
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Abstract

Abstract Polymers containing by weight (i) from about 50 to about 85 parts of units derived from at least one monomer (FM) having the formula wherein R 1 is straight or branched-chain perfluoroalkyl containing 4-20 carbons; R is H or CH 3 ; and n is an integer from 1-15; and (ii) from about 50 to about 15 parts of units derived from 3-chloro-2-hydroxypropyl methacrylate and/or acrylate (CHPM/A) or their bromo analogs. Preferably, the polymers contain by weight between 65 and 75 parts of units derived from FM and 35-25 parts of units derived from CHPM/A, particularly a copolymer consisting essentially by weight of 75 percent of a mixture of FM and 25 percent of CHPM. Polymers impart superior oil- and water-repellency and anti-soiling characteristics to fibrous substrates, and may be applied as a spin finish, particularly to nylon filaments.

Inventors

  • 👤 Stephen Howard Korzeniowski

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 09:01
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/22; C08F220/24; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 79 words
Polymers comprising (i) from about 50 to about 85 parts by weight of units derived from a fluorinated monomer or mixture of fluorinated monomers having the formula and (ii) from about 50 to about 15 parts by weight of units derived from one or more monomers having the formula wherein R is straight or branched-chain perfluoroalkyl containing 4-20 carbon atoms; R is H or CH 3 ; n is an integer from 1-15; and X is Cl or Br.
Claim 2
Dependent Claim 79 words
Polymers comprising (i) from about 50 to about 85 parts by weight of units derived from a fluorinated monomer or mixture of fluorinated monomers having the formula and (ii) from about 50 to about 15 parts by weight of units derived from one or more monomers having the formula wherein R is straight or branched-chain perfluoroalkyl containing 4-20 carbon atoms; R is H or CH 3 ; n is an integer from 1-15; and X is Cl or Br.
Claim 3
Dependent Claim 41 words
Polymers according to claim 1 containing between 65 and 75 parts by weight of units derived from said fluorinated monomer or mixture of fluorinated monomers and between 35 and 25 parts by weight of units derived from 3-chloro-2-hydroxypropyl methacrylate and/or acrylate.
Claim 4
Dependent Claim 30 words
Polymers according to claim 2 containing 75 weight percent of units derived from a mixture of said fluorinated monomers and about 25 weight percent of units derived from 3-chloro-2-hydroxypropyl methacrylate.
Claim 5
Dependent Claim 31 words
Polymers according to claim 2 containing about 65 weight percent of units derived from a mixture of said fluorine-containing monomers and about 35 weight percent of units derived from 3-chloro-2-hydroxypropyl methacrylate.
Claim 6
Dependent Claim 44 words
5 Polymers according to any one of claims 1 to 4 wherein R is CH 3 and R f is a mixture of perfluoroalkyl groups having the formula in which X is 2,4,6,8,10 and 12 in the approximate relative quantities by weight of 2/35/30/18/8/3.
Claim 7
Dependent Claim 39 words
A process for imparting oil- and water-repellency to fibrous and filamentary substrates which comprises applying an aqueous dispersion of the polymers claimed in any one of the preceding claims to textile filaments as a spin finish during filament manufacture.
Claim 8
Dependent Claim 36 words
A fibrous or filamentary substrate having a coating of at least one of the polymers claimed in any one of claims 1 to 5 in an amount sufficient to impart oil- and water-repellency to said substrate.
Claim 9
Dependent Claim 37 words
A fibrous or filamentary nylon substrate having a coating of at least one of the polymers claimed in any one of claims 1 to 5 in an amount sufficient to impart oil- and water-repellency to said substrate.

References Cited (Backward Citations)

GB2033408A Cited

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