Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and tetramethylsilane
US5854296A · kind A · utility
1Cited by
17References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1997 |
| Grant date | Dec 29, 1998 |
| Priority date | — |
| Expiry date | Sep 19, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Azeotropic compositions made up of from about 60 to about 78% by weight of 1,1,1,3,3-pentafluoropropane and from about 22 to about 40% by weight of tetramethylsilane have been found to be particularly useful as blowing agents for the production of polyurethane foams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.