US4195004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing water-dispersible resins
Assignee: Shell USA Inc
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Filing: 1978-11-21
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Granted: 1980-03-25
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Expires: 1998-11-21
Abstract
Abstract The invention relates to the preparation of hydroxyl- and carboxyl-containing resins for aqueous paint dispersions which are prepared by reacting a copolymer component (A) prepared from vinyl esters of alpha-branched acids, styrene or vinyl toluene, hydroxyalkyl ester and alkyl of alpha-beta ethylenically unsaturated acid, with (B) a substantially 1:1 molar reaction product of trimellitic anhydride and glycidyl esters of alpha-branched acids.
Inventors
- 👤 Eduard M. A. A. J. VAN Acker
- 👤 Petrus G. Kooijmans
- 👤 Aart de Heer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:36
CPC Classifications
C; C09; C09D; C09D163/00; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4223; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C08L; C08L63/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
140 words
A process for the preparation of hydroxyl- and carboxyl-containing resins dispersible in water with the aid of a base which comprises reacting 100 parts by weight of a copolymer component (A) prepared by reacting (a) from 10 to 60 parts by weight of a vinyl ester of an alpha-branched, saturated, aliphatic monocarboxylic acid, (b) from 10 to 50 parts by weight of styrene or vinyl toluene, (c) from 5 to 25 parts by weight of a hydroxyalkyl ester of an alpha,beta-ethylenically unsaturated monocarboxylic acid, and (d) from 0 to 40 parts by weight of an alkyl ester of an alpha,beta-ethylenically unsaturated monocarboxylic acid with about 5 to 25 parts by weight of a component (B) prepared by reacting trimellitic anhydride and a glycidyl ester of alpha-branched, saturated, aliphatic monocarboxylic acids in the mole ratio of from about 0.8:1 to 1:1.2.
Claim 2
Dependent Claim
140 words
A process for the preparation of hydroxyl- and carboxyl-containing resins dispersible in water with the aid of a base which comprises reacting 100 parts by weight of a copolymer component (A) prepared by reacting (a) from 10 to 60 parts by weight of a vinyl ester of an alpha-branched, saturated, aliphatic monocarboxylic acid, (b) from 10 to 50 parts by weight of styrene or vinyl toluene, (c) from 5 to 25 parts by weight of a hydroxyalkyl ester of an alpha,beta-ethylenically unsaturated monocarboxylic acid, and (d) from 0 to 40 parts by weight of an alkyl ester of an alpha,beta-ethylenically unsaturated monocarboxylic acid with about 5 to 25 parts by weight of a component (B) prepared by reacting trimellitic anhydride and a glycidyl ester of alpha-branched, saturated, aliphatic monocarboxylic acids in the mole ratio of from about 0.8:1 to 1:1.2.
Claim 3
Dependent Claim
86 words
The process of claim 1 wherein component (A) is a copolymer prepared from (a) 30 to 40 parts by weight of a vinyl ester of alpha-branched, saturated, aliphatic monocarboxylic acids, (b) 20 to 30 parts by weight of styrene or vinyl toluene, (c) 10 to 20 parts by weight of a hydroxyalkyl ester of an alpha-beta-ethylenically-unsaturated monocarboxylic acid, and (d) 10 to 20 parts by weight of an alkyl ester of an alpha-beta-ethylenically unsaturated carboxylic acid, all these constituents per 100 parts by weight of copolymer.
Claim 4
Dependent Claim
26 words
The process of claim 1 wherein the alpha-branched, saturated aliphatic monocarboxylic acids of components (A)(a) and (B) contain from 9 to 11 carbon atoms per molecule.
Claim 5
Dependent Claim
15 words
The process of claim 1 wherein the component (A) (c) is hydroxyethyl or 2-hydroxypropyl methacrylate.
Claim 6
Dependent Claim
31 words
The process of claim 1 wherein component (A) (d) is an alkyl ester of an alpha-beta ethylenically unsaturated monocarboxylic acid containing from 4 to 10 carbon atoms in the alkyl group.
Claim 7
Dependent Claim
13 words
The process of claim 5 wherein component (A) (d) is a butyl ester.
Claim 8
Dependent Claim
25 words
The process of claim 1 wherein 10 to 20 parts by weight of component (B) per 100 parts by weight of component (A) are utilized.
Claim 9
Dependent Claim
23 words
The process of claim 1 wherein the reaction of components (A) and (B) is carried out at temperatures between 100° and 150° C.
Claim 10
Dependent Claim
17 words
An aqueous coating dispersion comprising the resin of claim 1 dispersed in an aqueous solution of ammonia.
References Cited (Backward Citations)
GB1418372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-25 | 1983-09-24 | 1984-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-25 | 1987-09-24 | 1988-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-25 | 1991-09-24 | 1992-03-25 | $7700.00 | Window Closed / Lapsed |