Curable urethane resin composition comprising a mixture of polyisocyanate, active hydrogen compound and diketo compound
US3972846A · kind A · utility
12Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1974 |
| Grant date | Aug 3, 1976 |
| Priority date | — |
| Expiry date | Oct 30, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2101/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides for a curable polyurethane composition comprising a keto compound and a liquid mixture of an organic aliphatic polyfunctional polyisocyanate and a compound having active hydrogen, the keto compound having the general formula: ##EQU1## wherein R.sub.1 and R.sub.2 are each an alkyl group, an aromatic group, and a heterocyclic group, which may be the same or different, and R.sub.2 is a lower alkylene or alkenyl group having 1 to 2 carbon atoms. The curable polyurethane composition is characterized by exhibiting a long pot life due to the existence of the aforementioned keto compound therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.