Ungelled polyepoxide-polyoxyalkylenepolyamine resins, aqueous dispersions thereof, and their use in cationic electrodeposition
First Claim
Patent Images
1. An ungelled resin formed from reacting:
- (A) a polyepoxide and(B) a polyoxyalkylenepolyamine;
the ratio of equivalents of active hydrogens in (B), with primary amine groups being considered monofunctional, to equivalents of epoxy in (A) being within the range of 1.20 to 1.70;
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Accused Products
Abstract
Ungelled resins, aqueous dispersions of cationic resins, coating compositions, and electrodeposition using the resinous coating compositions are disclosed. The resins are formed from reacting polyepoxides with polyoxyalkylenepolyamines. The aqueous dispersions are prepared by at least partially neutralizing the resins to provide cationic groups and dispersing the cationic resins in aqueous medium. When added to cationic electrodepositable coating compositions, such as high throwpower compositions, the ungelled cationic resins provide better appearing, more flexible and water-resistant electrodeposited coatings.
89 Citations
16 Claims
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1. An ungelled resin formed from reacting:
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(A) a polyepoxide and (B) a polyoxyalkylenepolyamine; the ratio of equivalents of active hydrogens in (B), with primary amine groups being considered monofunctional, to equivalents of epoxy in (A) being within the range of 1.20 to 1.70;
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An ungelled resin formed from reacting:
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(A) a polyglycidyl ether of a cyclic polyol having a molecular weight of 340 to 5000 and an epoxy equivalent of 170 to 2500, (B) a polyoxyalkylenediamine having a molecular weight of 400 to 3000; the ratio of equivalents of active hydrogen in (B), with primary amine groups being considered monofunctional, to equivalents of epoxy in (A) being within the range of 1.20 to 1.70;
1. - View Dependent Claims (11, 12, 13, 14)
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15. An ungelled resin formed from reacting:
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(A) a polyglycidyl ether of a cyclic polyol having a molecular weight of 340 to 2000 and an epoxy equivalent of 170 to 1000, (B) a polyoxyalkylenediamine having a molecular weight of 800 to 2500; the ratio of equivalents of active hydrogen in (B), with primary amine groups being considered monofunctional, to equivalents of epoxy in (A) being within the range of 1.25 to 1.50;
1. - View Dependent Claims (16)
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Specification