Fluoropolymer production method
US9834631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2014 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Apr 30, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F214/245
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention aims to provide a method of producing a fluoropolymer, especially a fluoropolymer essentially including a tetrafluoroethylene or chlorotrifluoroethylene unit, at a higher polymerization rate with improved efficiency, the method being capable of improving the moldability in extrusion molding and suppressing discoloration. The method of producing a fluoropolymer of the present invention includes producing a fluoropolymer by polymerizing tetrafluoroethylene or chlorotrifluoroethylene in the presence of a peroxydicarbonate. The peroxydicarbonate is represented by the formula:R—O—C(═O)—O—O—C(═O)—O—Rwherein R's may be the same as or different from each other and individually represent a C4 alkyl group or alkoxy alkyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.