Stabilized hydrochlorofluoroolefins and hydrofluoroolefins
US8691107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2013 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Feb 27, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2205/126
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a combination of hydrofluoroolefins and/or hydrochlorofluoroolefins with stabilizers wherein the stabilizers minimize the degradation of the hydrofluoroolefins and hydrochlorofluoroolefins during storage, handling and use yet allow for atmospheric degradation. The combinations exhibit low or zero ozone depletion potential and lower global warming potential making them of interest as replacements for chlorofluorocarbons and hydrfluorocarbons. The combinations of the present invention comprise hydrofluoroolefins and/or hydrochlorofluoroolefins in combination with a stabilizer or stabilizers selected from free radical scavengers, acid scavengers, oxygen scavengers, polymerization inhibitors and combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.