Catalyzing cationic resin and blocked polyisocyanate with bismuth carboxylate
US6353057B1 · kind B1 · utility
40Cited by
6References
11Claims
0Family size
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Key dates
| Filing date | Feb 10, 1999 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Feb 10, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/4492
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of catalyzing a cationic coating comprising a cationic resin such as an epoxy resin-amine reaction product or a copolymer of a cationic monomer, and a blocked polyisocyanate, wherein a catalyst is added, said catalyst selected from the group consisting of bismuth carboxylate(s) having a hydrocarbon chain of from 11 to 36 carbon atoms and a molecular weight of from 165-465, and a mixture of a bismuth salt selected from the group consisting of bismuth oxide and bismuth chloride, and a carboxylic acid having a hydrocarbon chain of from 11 to 36 carbon atoms and a molecular weight of from 165-465.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.