Preparation of flexible, molded, cold-cure polyurethane foams
US5369138A · kind A · utility
34Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1993 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Feb 4, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/914
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a process for the preparation of molded cold-cure polyurethane flexible foams. The process requires the use of aromatic polyisocyanates, a specifed mixture of polyether polyols which have specified ethylene oxide contents and a specified amount of water as blowing agent. The reaction is conducted in a closed mold at an isocyanate index of from 80 to 120.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.