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US4277380A
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Water-dispersible urethane polymers and aqueous polymer dispersions
Assignee: Reichhold Chemicals Inc
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Filing: 1979-03-29
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Granted: 1981-07-07
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Expires: 1999-03-29
Abstract
Abstract Aqueous dispersions of polyurethane polymers in ammonium salt form are prepared by reacting diisocyanates with a polyhydroxy, carboxylic acid to form an isocyanate-terminated prepolymer that is united with an unsaturated fatty acid ester polyol to provide carboxylic-containing, water-dispersible polyurethanes having properties exhibited by organic solvent-based, oil-modified polyurethanes. The aqueous dispersions can be formed by neutralization of "oil-modified," carboxylic group-containing, water-dispersible polyurethanes with ammonium salt-forming materials such as ammonia and amines. The aqueous dispersions are especially desirable coating compositions.
Inventors
- 👤 Roy C. Williams
- 👤 David R. Rogemoser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:34
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0819; C08G18/0823; C08G18/28; C08G18/30; C08G18/36; C08G18/70; C08G18/72; C08G18/80; C08G18/8003; C08G18/8048
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
41 words
A carboxylic group-containing, oil-modified, urethane polymer composition comprising the reaction product of ethylenically-unsaturated fatty acid ester polyol of drying or semi-drying fatty acid having up to about 22 carbon atoms, and isocyanate-terminated, urethane prepolymer of hydrocarbon diisocyanate and dihydroxy alkanoic acid.
Claim 2
Dependent Claim
41 words
A carboxylic group-containing, oil-modified, urethane polymer composition comprising the reaction product of ethylenically-unsaturated fatty acid ester polyol of drying or semi-drying fatty acid having up to about 22 carbon atoms, and isocyanate-terminated, urethane prepolymer of hydrocarbon diisocyanate and dihydroxy alkanoic acid.
Claim 3
Dependent Claim
32 words
A urethane polymer composition in accordance with claim 1 wherein said dihydroxy alkanoic acid is comprised of 2,2-dialkylol alkanoic acid in which the alkylol groups have 1 to about 3 carbon atoms.
Claim 4
Dependent Claim
19 words
A urethane composition in accordance with claim 2 wherein said 2,2-dialkylol alkanoic acid is comprised of 2,2-dimethylol propionic acid.
Claim 5
Dependent Claim
33 words
A urethane polymer composition in accordance with claim 1,2 or 3 wherein the unsaturated fatty acid ester polyol is comprised of the transesterification product of a drying or semi-drying oil and a polyol.
Claim 6
Dependent Claim
22 words
A urethane polymer in accordance with claim 4 wherein the drying oil is comprised of linseed oil, sunflower oil or safflower oil.
Claim 7
Dependent Claim
16 words
A urethane polymer composition in accordance with claim 5 wherein the polyol is comprised of pentaerythritol.
Claim 8
Dependent Claim
16 words
A urethane polymer composition in accordance with claim 4 wherein the polyol is comprised of pentaerythritol.
Claim 9
Dependent Claim
20 words
A urethane polymer composition in accordance with claim 6 or 7 wherein the hydrocarbon diisocyanate is comprised of toluene diisocyanate.
Claim 10
Dependent Claim
26 words
A urethane polymer composition in accordance with claim 1, 2, 3, 5, 6, or 7 wherein said polymer is dissolved in a solvent comprised of alkoxyalkanol.
Claim 11
Dependent Claim
20 words
A urethane polymer composition in accordance with claim 4 wherein said polymer is dissolved in a solvent comprised of alkoxyalkanol.
Claim 12
Dependent Claim
15 words
A urethane polymer composition of claim 10 wherein the alkoxyalkanol solvent is comprised of butoxyethanol.
Claim 13
Dependent Claim
15 words
A urethane polymer composition of claim 9 wherein the alkoxyalkanol solvent is comprised of butoxyethanol.
Claim 14
Dependent Claim
20 words
A urethane polymer composition in accordance with claim 11 or 12 wherein the hydrocarbon diisocyanate is comprised of tolylene diisocyanate.
Claim 15
Dependent Claim
65 words
A stable, aqueous dispersion of an organic solvent solution of an oil-modified urethane polymer, said urethane polymer being an ammonia or amine salt of a carboxylic group-containing, oil-modified urethane polymer composition comprising the reaction product of ethylenically-unsaturated fatty acid ester polyol of drying or semi-drying fatty acid having up to about 22 carbon atoms, and isocyanate-terminated, urethane prepolymer of hydrocarbon diisocyanate and dihydroxy alkanoic acid.
Claim 16
Dependent Claim
65 words
A stable, aqueous dispersion of an organic solvent solution of an oil-modified urethane polymer, said urethane polymer being an ammonia or amine salt of a carboxylic group-containing, oil-modified urethane polymer composition comprising the reaction product of ethylenically-unsaturated fatty acid ester polyol of drying or semi-drying fatty acid having up to about 22 carbon atoms, and isocyanate-terminated, urethane prepolymer of hydrocarbon diisocyanate and dihydroxy alkanoic acid.
Claim 17
Dependent Claim
18 words
An aqueous dispersion in accordance with claim 14 in which the organic solvent is comprised of coupling solvent.
Claim 18
Dependent Claim
33 words
An aqueous dispersion in accordance with claim 14 or 15 wherein said dihydroxy alkanoic acid is comprised of 2,2-dialkylol alkanoic acid in which the alkylol groups have 1 to about 3 carbon atoms.
Claim 19
Dependent Claim
19 words
An aqueous dispersion in accordance with claim 16 wherein said 2,2-dialkylol alkanoic acid is comprised of 2,2-dimethylol propionic acid.
Claim 20
Dependent Claim
33 words
An aqueous dispersion in accordance with claim 14, 15 or 17 wherein the unsaturated fatty acid ester polyol is comprised of the transesterification product of a drying or semi-drying oil and a polyol.
Claim 21
Dependent Claim
30 words
An aqueous dispersion in accordance with claim 16 wherein the unsaturated fatty acid ester polyol is comprised of the transesterification product of a drying or semi-drying oil and a polyol.
Claim 22
Dependent Claim
22 words
An aqueous dispersion in accordance with claim 19 wherein the drying oil is comprised of linseed oil, sunflower oil or safflower oil.
Claim 23
Dependent Claim
15 words
An aqueous dispersion in accordance with claim 20 wherein the polyol is comprised of pentaerythritol.
Claim 24
Dependent Claim
17 words
An aqueous dispersion in accordance with claim 21 wherein the hydrocarbon diisocyanate is comprised of tolylene diisocyanate.
Claim 25
Dependent Claim
19 words
An aqueous dispersion in accordance with claim 15, 16, 19, 21, or 22 containing alkoxyalkanol as a coupling solvent.
Claim 26
Dependent Claim
16 words
An aqueous dispersion in accordance with claim 23 wherein the alkoxyalkanol solvent is comprised of butoxyethanol.
Claim 27
Dependent Claim
26 words
An aqueous dispersion in accordance with claim 14, 15, 17, 19, 20, 21, 22 or 24 in which the salt is of ammonia or tertiary amine.
Claim 28
Dependent Claim
13 words
An aqueous dispersion of claim 25 in which the salt is of ammonia.
Claim 29
Dependent Claim
26 words
A urethane polymer composition in accordance with claim 1, 2, 3, 5, 6, 7, 10, 11 or 12 dissolved in organic solvent comprised of coupling solvent.
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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) | 1984-07-06 | 1985-01-05 | 1985-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-06 | 1989-01-05 | 1989-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-06 | 1993-01-05 | 1993-07-07 | $7700.00 | Window Closed / Lapsed |