Process for preparing fluoropolymer
US6388033B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2001 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Feb 28, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F14/26
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a fluoropolymer by the batchwise polymerization of a monomer mixture containing tetrafluoroethylene, in which, after the initiation of a reaction, the monomers are reacted under conditions such that the monomer mixture is supplemented to a polymerization system in an amount more than the amount of the monomers consumed and simultaneously the excessive unreacted monomers are discharged from the polymerization system to maintain the monomer composition in the polymerization system substantially the same as that of the composition of the monomer mixture initially charged, and the monomer mixture supplemented to the polymerization system contains a compound suppressing the autoexplosion of the monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.