Rigid polyurethane foam and process for producing the same
USRE33290E · kind E · reissue
1Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1989 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Jan 19, 2009 |
Classification
- Technology area (CPC —)General
Abstract
Rigid polyurethane foams produced by reacting a polyol component having a special composition with an isocyanate component in the presence of a blowing agent, a reaction catalyst and a foam stabilizer with a mold release time of as short as 5.5 minutes or less, have remarkably low thermal conductivity of 12.5.times.10.sup.-3 Kcal/m.hr..degree.C. or less and a low density and are suitable as heat insulating materials for refrigerators and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.