US4081383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-soiling treatment for carpets and carpet yarns
Assignee: Rohm and Haas Co
•
Filing: 1976-09-02
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Granted: 1978-03-28
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Expires: 1996-09-02
Abstract
Abstract Soiling resistance and soil release of carpets are improved by coating the carpets or carpet yarns prior to carpet manufacture with a polymeric material containing either (A) a blend of a methacrylic acid emulsion copolymer and an epoxy resin or (B) a methacrylic acid emulsion copolymer having epoxy monomer units therein. The copolymer in either case contains 40-75% by weight methacrylic acid and the glass transition temperature of cured coatings of the polymeric material is at least 50° C.
Inventors
- 👤 Charles E. Warburton, Jr.
- 👤 Joseph J. Benischeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:52
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/55; C; C08; C08L; C08L33/00; C08L33/02; D06M15/21; D06M15/263; C08L63/00; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986; Y10T442/00; Y10T442/20; Y10T442/2279
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
177 words
A composition for the treatment of carpets and carpet yarns to render carpets resistant to soiling and to improve soil release on shampooing, comprising an aqueous dispersion containing 1-50% by weight of a polymeric material selected from: (A) a mixture of: (1) 60-98% by weight of a water-insoluble copolymer of 40-75% by weight of methacrylic acid and 60-25% by weight of a copolymerizable monomer system, and (2) 40-2% by weight of a water dispersible epoxy resin; and (B) a water-insoluble copolymer of 40-75% by weight of methacrylic acid, 1-25% by weight of a water-dispersible copolymerizable epoxy monomer and 0-95% by weight of a copolymerizable monomer system; wherein said copolymerizable monomer system contains no methacrylic acid, the ratio of equivalents of carboxyl groups to epoxy groups is about 2:1 to 100:1, and the glass transition temperature of cured coatings of the polymeric material is at least 50° C., provided that if the proportion of substantially water insoluble monomers in the copolymerizable monomer system is less than 90%, the copolymer contains at least 50% by weight of methacrylic acid.
Claim 2
Dependent Claim
177 words
A composition for the treatment of carpets and carpet yarns to render carpets resistant to soiling and to improve soil release on shampooing, comprising an aqueous dispersion containing 1-50% by weight of a polymeric material selected from: (A) a mixture of: (1) 60-98% by weight of a water-insoluble copolymer of 40-75% by weight of methacrylic acid and 60-25% by weight of a copolymerizable monomer system, and (2) 40-2% by weight of a water dispersible epoxy resin; and (B) a water-insoluble copolymer of 40-75% by weight of methacrylic acid, 1-25% by weight of a water-dispersible copolymerizable epoxy monomer and 0-95% by weight of a copolymerizable monomer system; wherein said copolymerizable monomer system contains no methacrylic acid, the ratio of equivalents of carboxyl groups to epoxy groups is about 2:1 to 100:1, and the glass transition temperature of cured coatings of the polymeric material is at least 50° C., provided that if the proportion of substantially water insoluble monomers in the copolymerizable monomer system is less than 90%, the copolymer contains at least 50% by weight of methacrylic acid.
Claim 3
Dependent Claim
58 words
A composition as in claim 1 wherein methacrylic acid comprises 50-70% by weight of the copolymer of (A) and (B), the epoxy resin comprises about 5-30% by weight of the mixture, the epoxy monomer comprises about 3-15% by weight of copolymer (B), and the ratio of equivalents of carboxyl groups to epoxy groups is about 4:1 to 50:1.
Claim 4
Dependent Claim
38 words
A composition as in claim 1 wherein the copolymerizable monomer system of (A) and (B) comprises at least one C 1 -C 4 alkyl ester of methacrylic acid, styrene, acrylonitrile, or a mixture of two or more thereof.
Claim 5
Dependent Claim
29 words
A composition as in claim 1 wherein the copolymer of mixture (A) is a copolymer of 60-70% by weight of methacrylic acid and 40-30% by weight of ethyl acrylate.
Claim 6
Dependent Claim
20 words
A composition as in claim 1 wherein the copolymer of mixture (A) is a copolymer of methacrylic acid and styrene.
Claim 7
Dependent Claim
22 words
A composition as in claim 1 wherein the copolymer of mixture (A) is a copolymer of methacrylic acid, styrene and methyl methacrylate.
Claim 8
Dependent Claim
26 words
A composition as in claim 6 wherein the monomer proportions in the copolymer are about 68.5% methacrylic acid, about 26.5% styrene and about 5% methyl methacrylate.
Claim 9
Dependent Claim
26 words
A composition as in claim 1 wherein mixture (A) contains about 70-95% by weight of said copolymer and about 30-5% by weight of said epoxy resin.
Claim 10
Dependent Claim
21 words
A composition as in claim 1 wherein the water-insoluble copolymer (B) comprises a copolymer of methacrylic acid, styrene and glycidyl methacrylate.
Claim 11
Independent Claim
182 words
A method of imparting soil resistance and soil release properties to carpets which comprises coating carpet yarns or finished carpets with a composition comprising an aqueous dispersion containing 1-50% by weight of a polymeric material selected from (A) a mixture of (1) 60-98% by weight of a water-insoluble copolymer of 40-75% by weight of methacrylic acid and 60-25% by weight of a copolymerizable monomer system, and (2) 40-2% by weight of a water dispersible epoxy resin; and (B) a water-insoluble copolymer of 40-75% by weight of methacrylic acid, 1-25% by weight of a water-dispersible copolymerizable epoxy monomer and 0-95% by weight of a copolymerizable monomer system; wherein said copolymerizable monomer system contains no methacrylic acid, the ratio of equivalents of carboxyl groups to epoxy groups is about 2:1 to 100:1, and the glass transition temperature of cured coatings of the polymeric material is at least 50° C., provided that if the proportion of substantially water insoluble monomers in the copolymerizable monomer system is less than 90%, the copolymer contains at least 50% by weight of methacrylic acid, and curing said composition thereon.
Claim 12
Independent Claim
182 words
A method of imparting soil resistance and soil release properties to carpets which comprises coating carpet yarns or finished carpets with a composition comprising an aqueous dispersion containing 1-50% by weight of a polymeric material selected from (A) a mixture of (1) 60-98% by weight of a water-insoluble copolymer of 40-75% by weight of methacrylic acid and 60-25% by weight of a copolymerizable monomer system, and (2) 40-2% by weight of a water dispersible epoxy resin; and (B) a water-insoluble copolymer of 40-75% by weight of methacrylic acid, 1-25% by weight of a water-dispersible copolymerizable epoxy monomer and 0-95% by weight of a copolymerizable monomer system; wherein said copolymerizable monomer system contains no methacrylic acid, the ratio of equivalents of carboxyl groups to epoxy groups is about 2:1 to 100:1, and the glass transition temperature of cured coatings of the polymeric material is at least 50° C., provided that if the proportion of substantially water insoluble monomers in the copolymerizable monomer system is less than 90%, the copolymer contains at least 50% by weight of methacrylic acid, and curing said composition thereon.
Claim 13
Dependent Claim
58 words
A method as in claim 10 wherein methacrylic acid comprises 50-70% by weight of the copolymer of (A) and (B), the epoxy resin comprises about 5-30% by weight of the mixture, the epoxy monomer comprises about 3-15% by weight of copolymer (B), and the ratio of equivalents of carboxyl groups to epoxy groups is about 4:1 to 50:1.
Claim 14
Dependent Claim
38 words
A method as in claim 10 wherein the copolymerizable monomer system of (A) and (B) comprises at least one C 1 -C 4 alkyl ester of methacrylic acid, styrene, acrylonitrile, or a mixture of two or more thereof.
Claim 15
Dependent Claim
29 words
A method as in claim 10 wherein the copolymer of mixture (A) is a copolymer of 60-70% by weight of methacrylic acid and 40-30% by weight of ethyl acrylate.
Claim 16
Dependent Claim
20 words
A method as in claim 10 wherein the copolymer of mixture (A) is a copolymer of methacrylic acid and styrene.
Claim 17
Dependent Claim
22 words
A method as in claim 10 wherein the copolymer of mixture (A) is a copolymer of methacrylic acid, styrene and methyl methacrylate.
Claim 18
Dependent Claim
26 words
A method as in claim 15 wherein the monomer proportions in the copolymer are about 68.5% methacrylic acid, about 26.5% styrene and about 5% methyl methacrylate.
Claim 19
Dependent Claim
26 words
A method as in claim 10 wherein mixture (A) contains about 70-95% by weight of said copolymer and about 30-5% by weight of said epoxy resin.
Claim 20
Dependent Claim
21 words
A method as in claim 10 wherein the water-insoluble copolymer (B) comprises a copolymer of methacrylic acid, styrene and glycidyl methacrylate.
Claim 21
Dependent Claim
151 words
Carpet yarn or carpeting coated with a polymeric material selected from (A) a mixture of (1) 60-98% by weight of a water-insoluble copolymer of 40-75% by weight of methacrylic acid and 60-25% by weight of a copolymerizable monomer system, and (2) 40-2% by weight of a water dispersible epoxy resin; and (B) a water-insoluble copolymer of 40-75% by weight of methacrylic acid, 1-25% by weight of a water-dispersible copolymerizable epoxy monomer and 0-95% by weight of a copolymerizable monomer system; wherein said copolymerizable monomer system contains no methacrylic acid, the ratio of equivalents of carboxyl groups to epoxy groups is about 2:1 to 100:1, and the glass transition temperature of cured coatings of the polymeric material is at least 50° C., provided that if the proportion of substantially water insoluble monomers in the copolymerizable monomer system is less than 90%, the copolymer contains at least 50% by weight of methacrylic acid.
Claim 22
Dependent Claim
151 words
Carpet yarn or carpeting coated with a polymeric material selected from (A) a mixture of (1) 60-98% by weight of a water-insoluble copolymer of 40-75% by weight of methacrylic acid and 60-25% by weight of a copolymerizable monomer system, and (2) 40-2% by weight of a water dispersible epoxy resin; and (B) a water-insoluble copolymer of 40-75% by weight of methacrylic acid, 1-25% by weight of a water-dispersible copolymerizable epoxy monomer and 0-95% by weight of a copolymerizable monomer system; wherein said copolymerizable monomer system contains no methacrylic acid, the ratio of equivalents of carboxyl groups to epoxy groups is about 2:1 to 100:1, and the glass transition temperature of cured coatings of the polymeric material is at least 50° C., provided that if the proportion of substantially water insoluble monomers in the copolymerizable monomer system is less than 90%, the copolymer contains at least 50% by weight of methacrylic acid.
Claim 23
Dependent Claim
60 words
Carpet yarn or carpeting as in claim 19 wherein methacrylic acid comprises 50-70% by weight of the copolymer of (A) and (B), the epoxy resin comprises about 5-30% by weight of the mixture, the epoxy monomer comprises about 3-15% by weight of copolymer (B), and the ratio of equivalents of carboxyl groups to epoxy groups is about 4:1 to 50:1.
Claim 24
Dependent Claim
40 words
Carpet yarn or carpeting as in claim 19 wherein the copolymerizable monomer system of (A) and (B) comprises at least one C 1 -C 4 alkyl ester of methacrylic acid, styrene, acrylonitrile, or a mixture of two or more thereof.
Claim 25
Dependent Claim
31 words
Carpet yarn or carpeting as in claim 19 wherein the copolymer of mixture (A) is a copolymer of 60-70% by weight of methacrylic acid and 40-30% by weight of ethyl acrylate.
Claim 26
Dependent Claim
22 words
Carpet yarn or carpeting as in claim 19 wherein the copolymer of mixture (A) is a copolymer of methacrylic acid and styrene.
Claim 27
Dependent Claim
24 words
Carpet yarn or carpeting as in claim 19 wherein the copolymer of mixture (A) is a copolymer of methacrylic acid, styrene and methyl methacrylate.
Claim 28
Dependent Claim
28 words
Carpet yarn or carpeting as in claim 24 wherein the monomer proportions in the copolymer are about 68.5% methacrylic acid, about 26.5% styrene and about 5% methyl methacrylate.
Claim 29
Dependent Claim
28 words
Carpet yarn or carpeting as in claim 19 wherein mixture (A) contains about 70-95% by weight of said copolymer and about 30-5% by weight of said epoxy resin.
Claim 30
Dependent Claim
23 words
Carpet yarn or carpeting as in claim 19 wherein the water-insoluble copolymer (B) comprises a copolymer of methacrylic acid, styrene and glycidyl methacrylate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-27 | 1981-09-26 | 1982-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-27 | 1985-09-26 | 1986-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-27 | 1989-09-26 | 1990-03-28 | $7700.00 | Window Closed / Lapsed |