Process for producing modified organic polyisocyanate
US5102918A · kind A · utility
36Cited by
4References
93Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 9, 1991 |
| Grant date | Apr 7, 1992 |
| Priority date | — |
| Expiry date | Jan 9, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/791
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A modified organic polyisocyanate is prepared in such a manner that a trimerization catalyst, an organic phosphite estr, and a surfactant, and optionally a ferrocene compound are added to an organic isocyanate and/or a partially urethanized organic polyisocyanate to cause isocyanuration in an extent that not more than 20% by weight of entire isocyanate groups are isocyanurated; and a stopper is added, if necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.