US4743698A
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US
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Acrylic emulsion copolymers for thickening aqueous systems and copolymerizable surfactant monomers for use therein
Assignee: ACC DEVELOPMENT Corp A CORP OF
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Filing: 1986-01-17
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Granted: 1988-05-10
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Expires: 2006-01-17
Abstract
Abstract Acrylic emulsion copolymers are prepared by emulsion polymerization of (A) a surfactant monomer, (B) an alpha , beta -ethylenically unsaturated carboxylic acid monomer, (C) a nonionic alpha , beta -ethylenically unsaturated monomer and (D) optionally a polyethylenically unsaturated cross-linking monomer. The surfactant monomer is prepared by condensing a polyhydric alcohol or primary amine-containing nonionic surfactant with a monoethylenically unsaturated monoisocyanate. At a low pH the copolymer may be in the form of an aqueous dispersion or latex, but thickens upon neutralization of at least some of the carboxyl groups.
Inventors
- 👤 Charles G. Ruffner
- 👤 John M. Wilkerson, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:38
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/58; C; C08; C08F; C08F220/00; C08F220/02; C08F220/04; C08F246/00; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/81; C08G18/8108; C09; C09D; C09D7/00; C09D7/40; C09D7/43; C09K; C09K3/00; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/525; C08L; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
98 words
A nonionic urethane compound which is the urethane reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant of the formula: ##STR15## in which x is an integer of from 0 to 150 and y is an integer of from 0 to 50 where R is a sorbitan fatty ester of the formula: ##STR16## where each of p, q, r and s is an integer and the sum of said integers is from 0 to 100, R 1 is H or --COR 2 and R 2 is alkyl, alkylphenyl, or dialkylphenyl having 5 to 30 carbon atoms.
Claim 2
Dependent Claim
98 words
A nonionic urethane compound which is the urethane reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant of the formula: ##STR15## in which x is an integer of from 0 to 150 and y is an integer of from 0 to 50 where R is a sorbitan fatty ester of the formula: ##STR16## where each of p, q, r and s is an integer and the sum of said integers is from 0 to 100, R 1 is H or --COR 2 and R 2 is alkyl, alkylphenyl, or dialkylphenyl having 5 to 30 carbon atoms.
Claim 3
Dependent Claim
47 words
A compound according to claim 1 in which R is a sorbitan monoester in which R 2 is an alkyl group containing from 10 to 20 carbon atoms and the sum of p, q, r and s is 10 to 20, and x and y are zero.
Claim 4
Dependent Claim
23 words
A compound according to claim 1 in which R is sorbitan trioleate, and the sum of p, q, r and s is zero.
Claim 5
Dependent Claim
126 words
A substituted carbonyl amino alkyl acrylate compound of the formula: ##STR17## in which A is an alkylene group of the formula (CH 2 ) n where n is an integer of from 2 to 20; Z is CH 2 ═CH--, CH 2 ═C(CH 3 )--, CH 2 ═C(Cl)--, CH 3 CH═CH--, or ##STR18## x is an integer of from 0 to 150 and y is an integer of from 0 to 40 when R is a sorbitan fatty ester of the formula: ##STR19## where each of p, q, r and s is an integer and the sum of said integers is from 0 to 20, R 1 is H or --COR 2 and R 2 is alkyl, alkylphenyl, or dialkylphenyl having 5 to 30 carbon atoms.
Claim 6
Dependent Claim
126 words
A substituted carbonyl amino alkyl acrylate compound of the formula: ##STR17## in which A is an alkylene group of the formula (CH 2 ) n where n is an integer of from 2 to 20; Z is CH 2 ═CH--, CH 2 ═C(CH 3 )--, CH 2 ═C(Cl)--, CH 3 CH═CH--, or ##STR18## x is an integer of from 0 to 150 and y is an integer of from 0 to 40 when R is a sorbitan fatty ester of the formula: ##STR19## where each of p, q, r and s is an integer and the sum of said integers is from 0 to 20, R 1 is H or --COR 2 and R 2 is alkyl, alkylphenyl, or dialkylphenyl having 5 to 30 carbon atoms.
Claim 7
Dependent Claim
68 words
A compound according to claim 4 in which R is a sorbitan monoester in which R 2 is an alkyl group containing from 10 to 20 carbon atoms and the sum of p, q, r and s is 10 to 20, Z is CH 2 ═CH-- or CH 2 ═C(CH 3 )--, A is alkylene containing from 2 to 4 carbon atoms, and x and y are zero.
Claim 8
Dependent Claim
23 words
A compound according to claim 4 in which R is sorbitan trioleate, and the sum of p, q, r and s is zero.
Claim 9
Dependent Claim
31 words
A compound according to claim 4 in which said substituted carbonyl amino ethyl methacrylate is selected from the group consisting of poly(oxyethylene) 20 sorbitan monooleate, and monooleyl amine-carbonyl amino ethyl 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) | 1991-05-10 | 1991-11-09 | 1992-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-10 | 1995-11-09 | 1996-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-10 | 1999-11-09 | 2000-05-10 | $7700.00 | Window Closed / Lapsed |