Catalyst system and process for the production of polyurethanes
US4500654A · kind A · utility
4Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1983 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Nov 1, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/2027
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalyst and process are provided for producing polyurethanes by contacting an organic polyol and an organic isocyanate with a catalyst comprising an N-substituted alkoxyalkyl piperazine and preferably additionally comprising an N-alkoxyalkyl morpholine wherein the alkylene moieties of the morpholine and piperazine are independently selected from the group consisting of C.sub.1 to about C.sub.5 alkylene moieties, and wherein the alkoxy moieties are independently selected from the group consisting of C.sub.1 to about C.sub.3 alkoxy moieties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.