US4299743A
Expired / Lapsed
US
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Sulfonate-containing polymer
Assignee: PPG Industries Ohio Inc
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Filing: 1980-05-27
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Granted: 1981-11-10
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Expires: 2000-05-27
Abstract
Abstract Polymer containing a plurality of organic sulfonate-containing groups is capable of being dissolved or dispersed in a liquid medium. The polymer is useful as a pigment dispersant and as film-forming polymer in coating compositions.
Inventors
- 👤 Percy E. Pierce
- 👤 Karl F. Schimmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:16
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0819; C08G18/0828; C08G18/28; C08G18/67; C08G18/675; C08G63/00; C08G63/68; C08G63/688; C08G63/91; C08G63/914; C08G63/918; C09; C09D; C09D7/00; C09D7/40; C09D7/45
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
92 words
Polymer capable of being dissolved or colloidally dispersed in a liquid medium, said polymer containing at least one organic sulfonate-containing group, which group is represented by the formula: ##STR5## wherein: R 1 , R 2 , and R 3 are each individually hydrogen or a monovalent organic group having a molecular weight in the range of from 15 to about 250; and M + is a monovalent cation or a monovalent fractional part of a polyvalent cation, which is ionically associated with the --SO 3 - portion of said organic sulfonate group.
Claim 2
Dependent Claim
92 words
Polymer capable of being dissolved or colloidally dispersed in a liquid medium, said polymer containing at least one organic sulfonate-containing group, which group is represented by the formula: ##STR5## wherein: R 1 , R 2 , and R 3 are each individually hydrogen or a monovalent organic group having a molecular weight in the range of from 15 to about 250; and M + is a monovalent cation or a monovalent fractional part of a polyvalent cation, which is ionically associated with the --SO 3 - portion of said organic sulfonate group.
Claim 3
Dependent Claim
24 words
The polymer of claim 1 wherein said polymer contains a plurality of said organic sulfonate-containing groups, which groups individually are represented by said formula.
Claim 4
Dependent Claim
12 words
The polymer of claim 1 wherein said polymer is a linear polymer.
Claim 5
Dependent Claim
12 words
The polymer of claim 1 wherein said polymer is a branched polymer.
Claim 6
Dependent Claim
11 words
The polymer of claim 1 wherein said polymer is a polyester.
Claim 7
Dependent Claim
11 words
The polymer of claim 1 wherein said polymer is an alkyd.
Claim 8
Dependent Claim
11 words
The polymer of claim 1 wherein said polymer is a uralkyd.
Claim 9
Dependent Claim
23 words
The polymer of claim 1 wherein M + is alkali metal, monovalent fractional part of alkaline earth metal, unsubstituted ammonium, or substituted ammonium.
Claim 10
Dependent Claim
12 words
The polymer of claim 1 wherein M + is an alkali metal.
Claim 11
Dependent Claim
11 words
The polyester of claim 1 wherein M + is trisubstituted ammonium.
Claim 12
Dependent Claim
11 words
The polymer of claim 1 wherein M + is trialkylsubstituted ammonium.
Claim 13
Dependent Claim
10 words
The polymer of claim 1 wherein M + is N,N-dialkyl-N-hydroxyalkylammonium.
Claim 14
Dependent Claim
10 words
The polymer of claim 1 wherein M + is N,N-dimethyl-N-(2-hydroxyethyl)ammonium.
Claim 15
Dependent Claim
39 words
The polymer of claim 1 wherein R 1 , R 2 and R 3 are each independently hydrogen, alkyl, cycloalkyl, aryl, ##STR6## and R 4 , R 5 and R 6 are each independently hydrogen, alkyl, cycloalkyl or aryl.
Claim 16
Dependent Claim
17 words
The polymer of claim 1 wherein R 1 , R 2 and R 3 are each hydrogen.
Claim 17
Dependent Claim
19 words
The polymer of claim 1 wherein R 1 and R 2 are each hydrogen and R 3 is methyl.
Claim 18
Dependent Claim
19 words
The polymer of claim 1 wherein R 1 is methyl and R 2 and R 3 are both hydrogen.
Claim 19
Dependent Claim
16 words
The polymer of claim 1 having a number average molecular weight of at least about 1000.
Claim 20
Dependent Claim
21 words
The polymer of claim 1 having a number average molecular weight in the range of from about 1000 to about 150,000.
Claim 21
Dependent Claim
21 words
The polymer of claim 1 having a number average molecular weight in the range of from about 1000 to about 50,000.
Claim 22
Dependent Claim
32 words
The polymer of claim 1 wherein the sulfonate group content of said polymer is in the range of from about 0.1 to about 3 millimoles of sulfonate groups per gram of polymer.
Claim 23
Dependent Claim
15 words
The polymer of claim 1 wherein said polymer also contains at least one carboxyl group.
Claim 24
Dependent Claim
15 words
The polymer of claim 1 wherein said polymer also contains a plurality of carboxyl groups.
Claim 25
Independent Claim
119 words
A method for producing a product polymer capable of being dissolved or colloidally dispersed in a liquid medium, said method comprising: (a) condensing each of at least some of the reactive groups of an intermediate polymer containing said reactive groups with the complementary reactive group of a compound containing both said complementary reactive group and ethylenic unsaturation conjugated by at least one carbonyl group, to thereby provide said intermediate polymer with pendent groups containing said ethylenic unsaturation; and (b) reacting said ethylenic unsaturation of at least some of said pendent groups with bisulfite salt, metabisulfite salt, a mixture of bisulfite salt and metabisulfite salt or precursor thereof to provide at least one sulfonate group to said reacted pendent groups.
Claim 26
Independent Claim
119 words
A method for producing a product polymer capable of being dissolved or colloidally dispersed in a liquid medium, said method comprising: (a) condensing each of at least some of the reactive groups of an intermediate polymer containing said reactive groups with the complementary reactive group of a compound containing both said complementary reactive group and ethylenic unsaturation conjugated by at least one carbonyl group, to thereby provide said intermediate polymer with pendent groups containing said ethylenic unsaturation; and (b) reacting said ethylenic unsaturation of at least some of said pendent groups with bisulfite salt, metabisulfite salt, a mixture of bisulfite salt and metabisulfite salt or precursor thereof to provide at least one sulfonate group to said reacted pendent groups.
Claim 27
Dependent Claim
20 words
The method of claim 24 wherein said compound is maleic acid, maleic anhydride, acrylic acid, methacrylic acid or crotonic acid.
Claim 28
Dependent Claim
30 words
The method of claim 24 wherein said ethylenic unsaturation of at least some of said pendent groups is reacted with said precursor, said precursor being sulfur dioxide, amine and water.
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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) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |