Blowing agent blends
US6348515B1 · kind B1 · utility
3Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2000 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Sep 6, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Foam blowing agents blends of HFC-134a and a pentane selected from n-pentane, i-pentane and i-pentane/cyclopentane are provided, as are polyol premixes and polyurethane foam compositions containing such blends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.