Rigid polyurethane foam and heat insulator obtained therefrom
US5173517A · kind A · utility
3Cited by
1References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1990 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Dec 19, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A rigid polyurethane foam obtained by foaming a special polyol component and an isocyanate component using only water as a blowing agent has balanced excellent properties including a remarkably low density and a low thermal conductivity and is suitable for use as a heat insulator, particularly in a refrigerator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.