Rigid polyurethane foam, process for producing the same, and heat insulators and refrigerators using such polyurethane foam
US5034425A · kind A · utility
5Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1989 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Oct 21, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A rigid polyurethane foam produced by reacting a special polyol component with an isocyanate component in the presence of a blowing agent containing water in an amount of 2 to 3.5% by weight per 100% by weight of the polyol component is excellent in fluidity with balanced excellent properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.