Heterocyclic diorganotin catalysts for use in polyurethane systems
US5149844A · kind A · utility
4Cited by
15References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1991 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | Sep 9, 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 organotins of the formula ##STR1## where R is a C.sub.1 -C.sub.8 alkyl or an aryl group, PA0 Y is --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH(CH.sub.3)--, --CH.sub.2 CH(OH)CH.sub.2 --, or ##STR2## and X is a linking group which may be --S-- or --O--. Also disclosed are cationic electrodepositable compositions containing such catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.