Blowing agent blends
US5958992A · kind A · utility
3Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1998 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Nov 24, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Foam blowing agents blends of 10-90% of n- and/or i-pentane with 90-10% of 142b or 124 are provided, as are polyol premixes and polyurethane foam compositions containing such blends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.