Process for producing an isocyanate-based polymer having reduced smoke generation
US4055522A · kind A · utility
9Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1975 |
| Grant date | Oct 25, 1977 |
| Priority date | — |
| Expiry date | Sep 19, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S528/905
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is disclosed a process for producing an isocyanate-based polymer by catalytically reacting a polyisocyanate alone or in combination with a polyhydroxy compound, the improvement in which an aromatic aldehyde having aldehyde group and no functional group capable of reacting with the isocyanate group, as a smoke suppressing agent is added to the reaction system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.