Polymerization of fluoropolymers using non-fluorinated surfactants
US8697822B2 · kind B2 · utility
6Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2006 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Feb 5, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F14/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a method for the polymerization in an aqueous medium of monomers, and especially of fluoromonomers, using non-fluorinated surfactants; and the fluoropolymers formed therefrom. Specifically, the method of the polymerization uses one or more non-fluorinated surfactants selected from the group consisting of polyvinylphosphonic acid, polyacrylic acids, polyvinyl sulfonic acid, and salts thereof. Additionally, the use of polyvinylphosphonic acid, polyacrylic acids, polyvinyl sulfonic acid as surfactants in aqueous free radical polymerization is also novel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.