Process for producing integral skin polyurethane foam
US4444704A · kind A · utility
18Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1982 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Jan 19, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2350/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Integral skin polymethane foams can be produced in a short time by impingement mixing a solution comprising polyols containing as an essential component a polyol derived from aromatic amine, a blowing agent and a special catalyst of tertiary amine salt having a hetero ring in the molecule, with a solution comprising one or more polyisocyanates, followed by injection into a closed mold and foaming and curing therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.