Patent US4294741A successfully refreshed from Google Patents.
US4294741A
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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: 1981-10-13
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Expires: 2000-06-23
Abstract
Abstract Polymeric products are prepared 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 a quaternary ammonium base group-containing polymer which is formed from reacting a polyepoxide with an unsaturated tertiary amine in the presence of a proton source. The polymeric products are useful in water-based coating compositions particularly for use in cationic electrodeposition.
Inventors
- 👤 Joseph F. Bosso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:09
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: 34
Claim 1
Independent Claim
64 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) a quaternary ammonium base group-containing polymer which is formed from reacting a polyepoxide with an unsaturated tertiary amine in the presence of a proton source.
Claim 2
Dependent Claim
64 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) a quaternary ammonium base group-containing polymer which is formed from reacting a polyepoxide with an unsaturated tertiary amine in the presence of a proton source.
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 product 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
74 words
The dispersion of claim 1 in which the unsaturated tertiary amine of (B) has the following structure: ##STR2## wherein R 1 is hydrogen or methyl, R 2 and R 3 are the same or different and are alkyl containing from 1 to 4 carbon atoms, n is one of the integers 1 to 6, and A is oxygen or NR 4 where R 4 is hydrogen or alkyl having 1 to 4 carbon atoms.
Claim 8
Dependent Claim
42 words
The dispersion of claim 6 in which the unsaturated tertiary amine of (B), A is oxygen, n is 2 or 3 and R 2 and R 3 are the same or different and are alkyl containing from 1 to 2 carbon atoms.
Claim 9
Dependent Claim
16 words
The dispersion of claim 1 in which the polyepoxide is 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
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 12
Dependent Claim
21 words
The dispersion of claim 1 in which the polymerization is carried out in the presence of a free radical polymerization catalyst.
Claim 13
Dependent Claim
20 words
The dispersion of claim 1 in which the polymerization is carried out in the presence of a chain transfer agent.
Claim 14
Dependent Claim
14 words
The dispersion of claim 12 in which the chain transfer agent is tertiary-dodecyl mercaptan.
Claim 15
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 16
Dependent Claim
16 words
A coating composition comprising an aqueous dispersion of the polymeric products of any of claims 1-14.
Claim 17
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 1-14.
Claim 18
Independent Claim
79 words
A method for preparing a polymeric product dispersed in aqueous medium comprising: (A) dispersing a polymerizable ethylenically unsaturated monomer composition in aqueous medium and in the presence of a quaternary ammonium base group-containing polymer which is formed from reacting a polyepoxide with an unsaturated tertiary amine in the presence of a proton source; (B) subjecting the dispersion of (A) to free radical initiated addition polymerization conditions so as to form a stable aqueous dispersion of a cationic polymeric product.
Claim 19
Independent Claim
79 words
A method for preparing a polymeric product dispersed in aqueous medium comprising: (A) dispersing a polymerizable ethylenically unsaturated monomer composition in aqueous medium and in the presence of a quaternary ammonium base group-containing polymer which is formed from reacting a polyepoxide with an unsaturated tertiary amine in the presence of a proton source; (B) subjecting the dispersion of (A) to free radical initiated addition polymerization conditions so as to form a stable aqueous dispersion of a cationic polymeric product.
Claim 20
Dependent Claim
15 words
The method of claim 17 in which the monomer composition (A) includes a diene monomer.
Claim 21
Dependent Claim
11 words
The method of claim 18 in which the diene is 1,3-butadiene.
Claim 22
Dependent Claim
31 words
The method of claim 17 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 23
Dependent Claim
13 words
The method of claim 17 in which the monomer composition (A) includes styrene.
Claim 24
Dependent Claim
74 words
The method of claim 17 in which the unsaturated tertiary amine of (B) has the following structure: ##STR3## wherein R 1 is hydrogen or methyl, R 2 and R 3 are the same or different and are alkyl containing from 1 to 4 carbon atoms, n is one of the integers 1 to 6, and A is oxygen or NR 4 where R 4 is hydrogen or alkyl having 1 to 4 carbon atoms.
Claim 25
Dependent Claim
42 words
The method of claim 22 in which the unsaturated tertiary amine of (B), A is oxygen, n is 2 or 3 and R 2 and R 3 are the same or different and are alkyl containing from 1 to 2 carbon atoms.
Claim 26
Dependent Claim
16 words
The method of claim 17 in which the polyepoxide is polyglycidyl ether of a cyclic polyol.
Claim 27
Dependent Claim
13 words
The method of claim 24 in which the cyclic polyol is a polyphenol.
Claim 28
Dependent Claim
21 words
The method of claim 17 in which the polyepoxide-amine adduct has an average molecular weight of from about 500 to 5000.
Claim 29
Dependent Claim
21 words
The method of claim 17 in which the polymerization is carried out in the presence of a free radical polymerization catalyst.
Claim 30
Dependent Claim
20 words
The method of claim 17 in which the polymerization is carried out in the presence of a chain transfer agent.
Claim 31
Dependent Claim
14 words
The method of claim 28 in which the chain transfer agent is tertiary-dodecyl mercaptan.
Claim 32
Dependent Claim
41 words
The method of claim 17 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 33
Dependent Claim
25 words
The method of claim 17 in which the free radical initiated addition polymerization conditions are by heating in the presence of a free radical initiator.
Claim 34
Dependent Claim
23 words
The method of claim 31 in which the heating is conducted for about 2 to 20 hours at about 75° to 100° C.
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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) | 1984-10-12 | 1985-04-13 | 1985-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-12 | 1989-04-13 | 1989-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-12 | 1993-04-13 | 1993-10-13 | $7700.00 | Window Closed / Lapsed |