US4297261A
Expired / Lapsed
US
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Cationic polymers and their use in electrodeposition
Assignee: PPG Industries Ohio Inc
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Filing: 1980-06-23
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Granted: 1981-10-27
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Expires: 2000-06-23
Abstract
Abstract Polymeric products are prepared by polymerizing in aqueous medium under addition polymerization conditions a dispersed phase of a polymerizable, ethylenically unsaturated monomer or mixture of polymerizable, ethylenically unsaturated monomers in the presence of an at least partially neutralized adduct of a polyepoxide and a primary and/or secondary amine and which contains unsaturation. The polymeric products are useful in water-based coating compositions particularly for use in cationic electrodeposition.
Inventors
- 👤 Edward L. Jozwiak, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:54
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4407; C09D5/4415; C08; C08F; C08F299/00; C08F299/02; C08F299/026; C08G; C08G59/00; C08G59/14; C08G59/1433; C09D4/00; C09D4/06; C09D5/4403; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
54 words
A stable, aqueous dispersion of a cationic polymeric product prepared by polymerizing in aqueous medium under free radical initiated addition polymerization conditions: (A) an aqueous dispersed phase of a polymerizable, ethylenically unsaturated monomer composition, in the presence of (B) an at least partially acid neutralized polyepoxide-primary and/or secondary amine adduct which contains pendent unsaturation.
Claim 2
Dependent Claim
54 words
A stable, aqueous dispersion of a cationic polymeric product prepared by polymerizing in aqueous medium under free radical initiated addition polymerization conditions: (A) an aqueous dispersed phase of a polymerizable, ethylenically unsaturated monomer composition, in the presence of (B) an at least partially acid neutralized polyepoxide-primary and/or secondary amine adduct which contains pendent unsaturation.
Claim 3
Dependent Claim
15 words
The dispersion of claim 1 in which the monomer composition (A) includes a diene monomer.
Claim 4
Dependent Claim
11 words
The dispersion of claim 2 in which the diene is 1,3-butadiene.
Claim 5
Dependent Claim
31 words
The dispersion of claim 1 in which the monomer composition (A) includes an alkyl ester of acrylic or methacrylic acid containing from 1 to 8 carbon atoms in the alkyl group.
Claim 6
Dependent Claim
13 words
The dispersion of claim 1 in which the monomer composition (A) includes styrene.
Claim 7
Dependent Claim
15 words
The dispersion of claim 1 in which the polyepoxide-amine adduct contains CH 2 ═CH-- unsaturation.
Claim 8
Dependent Claim
20 words
The dispersion of claim 1 in which the pendent unsaturation is incorporated into the polyepoxide-amine adduct through the amine reactant.
Claim 9
Dependent Claim
17 words
The dispersion of claim 1 in which the polyepoxide is a polyglycidyl ether of a cyclic polyol.
Claim 10
Dependent Claim
13 words
The dispersion of claim 8 in which the cyclic polyol is a polyphenol.
Claim 11
Dependent Claim
11 words
The dispersion of claim 9 in which the polyphenol is 2,2-bis-(3-allyl-4-hydroxyphenyl)propane.
Claim 12
Dependent Claim
21 words
The dispersion of claim 1 in which the polyepoxide-amine adduct has an average molecular weight of from about 500 to 5000.
Claim 13
Dependent Claim
20 words
The dispersion of claim 1 in which the polymerization is conducted in the presence of a free radical polymerization catalyst.
Claim 14
Dependent Claim
19 words
The dispersion of claim 12 in which the polymerization is conducted in the presence of a chain transfer agent.
Claim 15
Dependent Claim
14 words
The dispersion of claim 13 in which the chain transfer agent is tertiary-dodecyl mercaptan.
Claim 16
Dependent Claim
41 words
The dispersion of claim 1 which contains from about 50 to 97.5 percent by weight of (A) and from about 50 to 2.5 percent by weight of (B), the percentage by weight being based on total weight of (A) and (B).
Claim 17
Dependent Claim
16 words
A coating composition comprising the aqueous dispersion of the polymeric products of any of claims 1-15.
Claim 18
Independent Claim
55 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, an anode and an aqueous electrodepositable composition which comprises passing an electric current between said cathode and anode and wherein the electrodepositable composition comprises an aqueous dispersion of the polymeric product of any of claims 1-5.
Claim 19
Independent Claim
64 words
A method of preparing a polymeric product comprising: (A) dispersing a polymerizable, ethylenically unsaturated monomer composition in aqueous medium in the presence of an at least partially acid-neutralized polyepoxide-primary and/or secondary amine adduct which contains pendent unsaturation. (B) subjecting the dispersion prepared in (A) to free radical initiated addition polymerization conditions so as to form a stable aqueous dispersion of a cationic polymeric product.
Claim 20
Independent Claim
64 words
A method of preparing a polymeric product comprising: (A) dispersing a polymerizable, ethylenically unsaturated monomer composition in aqueous medium in the presence of an at least partially acid-neutralized polyepoxide-primary and/or secondary amine adduct which contains pendent unsaturation. (B) subjecting the dispersion prepared in (A) to free radical initiated addition polymerization conditions so as to form a stable aqueous dispersion of a cationic polymeric product.
Claim 21
Dependent Claim
15 words
The method of claim 18 in which the monomer composition (A) includes a diene monomer.
Claim 22
Dependent Claim
11 words
The method of claim 19 in which the diene is 1,3-butadiene.
Claim 23
Dependent Claim
31 words
The method of claim 18 in which the monomer composition (A) includes an alkyl ester of acrylic or methacrylic acid containing from 1 to 8 carbon atoms in the alkyl group.
Claim 24
Dependent Claim
13 words
The method of claim 18 in which the monomer composition (A) includes styrene.
Claim 25
Dependent Claim
15 words
The method of claim 18 in which the polyepoxide-amine adduct contains CH 2 ═CH-- unsaturation.
Claim 26
Dependent Claim
20 words
The method of claim 18 in which the pendent unsaturation is incorporated into the polyepoxide-amine adduct through the amine reactant.
Claim 27
Dependent Claim
17 words
The method of claim 18 in which the polyepoxide is a polyglycidyl ether of a cyclic polyol.
Claim 28
Dependent Claim
13 words
The method of claim 25 in which the cyclic polyol is a polyphenol.
Claim 29
Dependent Claim
11 words
The method of claim 26 in which the polyphenol is 2,2-bis-(3-allyl-4-hydroxyphenyl)propane.
Claim 30
Dependent Claim
21 words
The method of claim 18 in which the polyepoxide-amine adduct has an average molecular weight of from about 500 to 5000.
Claim 31
Dependent Claim
20 words
The method of claim 18 in which the polymerization is conducted in the presence of a free radical polymerization catalyst.
Claim 32
Dependent Claim
19 words
The method of claim 29 in which the polymerization is conducted in the presence of a chain transfer agent.
Claim 33
Dependent Claim
14 words
The method of claim 30 in which the chain transfer agent is tertiary-dodecyl mercaptan.
Claim 34
Dependent Claim
41 words
The method of claim 18 which contains from about 50 to 97.5 percent by weight of (A) and from about 50 to 2.5 percent by weight of (B), the percentage by weight being based on total weight of (A) and (B).
Claim 35
Dependent Claim
27 words
The method of claim 18 in which the dispersion (A) is subjected to free radical polymerization conditions by heating in the presence of a free radical initiator.
Claim 36
Dependent Claim
19 words
The method of claim 33 in which heating is conducted at 75°-100° C. for about 2 to 20 hours.
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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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |