Preparation process of aliphatic isocyanate
US5136086A · kind A · utility
8Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1992 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Jan 13, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C263/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention is an industrially efficient and improved process for the preparation of aliphatic polyisocyanates by using esters as the solvent for converting aliphatic polyamines to isocyanates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.