Aqueous process for making a stable fluoropolymer dispersion
US9068071B2 · kind B2 · utility
1Cited by
21References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2012 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Nov 20, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L71/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A novel aqueous polymerization process for making fluoropolymer dispersions is disclosed in which non-ionic non-fluorinated emulsifier is used to produce fluoropolymer emulsions. The emulsifiers used in the invention are those that contain segments of polyethylene glycol, polypropylene glycol, and/or polytetamethylene glycol with repeating units of 3 to 100. The process and fluoropolymer produced contain no fluorinated surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.