Cross linkable fluorine-containing polymer
US4501869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1983 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Jul 26, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2438/01
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An easily cross linkable fluorine-containing polymer comprising: (1) a polymeric chain comprising one or more polymer segments, at least one polymer segment of which consists of units of at least one fluorine-containing ethylenically unsaturated compound having 2 to 8 carbon atoms, or units of said fluorine-containing ethylenically unsaturated compound and at least one other monomer selected from the group consisting a fluorine-free ethylenically unsaturated compound having 2 to 4 carbon atoms and a fluorine-containing diene having 4 to 8 carbon atoms, (2) at least one bromine atom liberated from a brominated compound of the formula: RBr.sub.x (wherein R is a saturated hydrocarbon residue and x is a number corresponding to the bonding valency of the residue R) in an amount of 0.001 to 10% by weight based on the polymer weight and (3) a fragment of the brominated compound excluding the said liberated bromine atom therefrom, bonded to the polymeric chain, the polymer being prepared by polymerizing said fluorine-containing ethylenically unsaturated compound with or without said other monomer in the presence of a radical producing source and the brominated compound in at least one step…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.