Hexafluoropropylene oxide polymer compositions and a method of preparing hexafluoropropylene oxide polymer using hexafluoropropylene oligomer
US8916666B2 · kind B2 · utility
1Cited by
2References
4Claims
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Key dates
| Filing date | Jul 28, 2009 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Aug 23, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/226
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to hexafluoropropylene oxide polymer composition and a process of preparing of hexafluoropropylene oxide polymer by an anionic polymerization, and in particular the hexafluoropropylene oxide polymer composition comprises an anionic initiator, a polar solvent, hexafluoropropylene and hexafluoropropylene oxide. The hexafluoropropylene oxide polymer is prepared under particular reaction conditions by using the composition, hexafluoropropylene oxide polymer prepared by using the composition according to a preparation process herein has a weight average molecular weight (Mw) of 1,500-4,000 at −10-20° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.