Process for preparing rigid polyurethane and polyisocyanurate foams having enhanced benefits
US5169872A · kind A · utility
3Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1992 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | May 11, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2483/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
What is disclosed is a process for obtaining polyurethane foams having enhanced benefits. The invention disclosed herein provides a system flowability of the reacting foam mixture to give foams with an insulating capablity equal to the foams that are provided by chlorofluorocarbon blown system, while doing away with the chlorofluorocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.