Process for the preparation of aliphatic polyisocyanates
US5523467A · kind A · utility
15Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1995 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Mar 10, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is provided for the preparation of an aliphatic polyisocyanate. Upon reacting an aliphatic polyamine or its hydrochloride or carbonate with phosgene in an inert liquid medium, the reaction is conducted while charging an inert gas into a reaction system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.