Azeotrope-like compositions of 1,1,1,3,3-pentaflurorpropane and hydrocarbons
US5672294A · kind A · utility
31Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1996 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Apr 10, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/902
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The compositions of the invention are useful in the preparation of polyurethane and polyisocyanurate foams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.