Cationic electrodepositable compositions of partially-blocked polyisocyanates and amine-epoxy resins containing polymeric diorganotin catalysts
US4981925A · kind A · utility
2Cited by
12References
8Claims
0Family size
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Key dates
| Filing date | Oct 20, 1989 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Oct 20, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/643
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Useful as catalysts for the reaction of a polyisocyanate or a partially blocked polyisocyanate with a hydroxy-containing compound are organotin compositions obtained by reacting a diorganotin oxide of the formula R.sub.2 SnO or a diorganotin dichloride of the formula R.sub.2 SnCl.sub.2 with a compound of the formula HS--CH.sub.2 CH(OH)CH.sub.2 XH where R is a C.sub.1 -C.sub.8 alkyl or an aryl group and X is --O-- or --S--. Also disclosed are cationic electrodepositable (CED) compositions containing such catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.