Novel blowing agent for polymeric foam process
US4255527A · kind A · utility
4Cited by
26References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1979 |
| Grant date | Mar 10, 1981 |
| Priority date | — |
| Expiry date | Jul 19, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process is disclosed for a polymeric foam such as a polyurethane foam prepared from a reaction mixture comprising an organic polyisocyanate compound and a compound having more than one active hydrogen, wherein the blowing agent comprises a mixture of ethanol and dibutylphthalate. The molar ratio of ethanol to dibutylphthalate is preferably in the range of from about 1.5 to about 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.