Azeotropes of hydrogen-containing halocarbons with butanes
US4954289A · kind A · utility
12Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1989 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Jun 12, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/91
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Azeotropes of 1-chloro-1,2,2,2-tetrafluoroethane or 1-chloro-1,1-difluoroethane with n-butane or isobutane and their use as propellants and foam blowing agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.