Fluorine-containing block copolymer
US5049622A · kind A · utility
9Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Sep 18, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F293/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
CF.sub.2 .dbd.CF.sub.2 and CF.sub.3 OCF.dbd.CF.sub.2 are subjected to copolymerization reaction in the presence of an organic compound containing at least one of iodine and bromine, and then CF.sub.2 .dbd.CF.sub.2 and CH.sub.2 .dbd.CF.sub.2 are supplied to the reaction system to continue the polymerization reaction. The thus obtained fluorine-containing block copolymer is of a low vinylidene fluoride content type and has a good solvent resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.