Polymeric diorganotin catalysts for use in polyurethane systems
US5145976A · kind A · utility
6Cited by
16References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1991 |
| Grant date | Sep 8, 1992 |
| Priority date | — |
| Expiry date | Sep 6, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/4457
- 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 of 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.