Azeotropes of 2-methylbutane and 1,1-dichloro-1-fluorethane and the use thereof in the production of rigid foams
US5106527A · kind A · utility
14Cited by
14References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Apr 6, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/05
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to a novel azeotrope consisting essentially of from 25 to 35% by weight of 2-methylbutane and from 65 to 75% by weight of 1,1-dichloro-1-fluoroethane, and the use thereof in the production of rigid, closed cell foams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.