Blowing agent composition of hydrochlorofluoroolefin and hydrofluoroolefin
US9914815B2 · kind B2 · utility
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2Claims
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Assignee
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Key dates
| Filing date | Feb 4, 2016 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Feb 4, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (HCFO), preferably HFCO-1234yf in combination with a hydrochlorofluoroolefin (HCFO) preferably one selected from HCFO-1233zd, HCFO-1223, HCFO-1233xf and mixtures thereof. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.