Integral skin polyurethane foam
US5132329A · kind A · utility
14Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1990 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Sep 20, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a flexible, low density, integral skin polyurethane foam wherein water is used as the sole blowing and density controlling agent. The process entails reacting an isocyanate component with a compound containing isocyanate reactive groups and further containing ether linkages, a polyurethane promoting catalyst, an alcohol, a surfactant, a chain extender and optional additives. The reaction is carried out at molded densities of from 15 pcf to 30 pcf in molds preheated to about 90.degree. F. to about 130.degree. F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.