Back to results
US 5,145,925 AGranted
Chlorotrifluoroethylene/perfluoro(alkyl vinyl ether) copolymer
AssigneeDaikin Industries, Ltd.
InventorsKiyohiko Ihara, Fumihiko Yamaguchi
Life of this patent
Estimating the term…
Abstract
A copolymer comprising chlorotrifluoroethylene and 0.01 to 1% by mole of perfluoro(alkyl vinyl ether) of the formula: R.sub.f --O--CF.dbd.CF.sub.2 (I) wherein R.sub.f is a C.sub.3 -C.sub.6 perfluoroalkyl group, and having a melt flow rate of 0.01 to 200.times.10.sup.-3 cc/sec., which has good mechanical strength and sufficiently high melting point.
Claims4
A copolymer which comprises chlorotrifluoroethylene and 0.01 to 1% by mole of perfluoro(alkyl vinyl ether) of the formula:
- R.sub.f --O--CF.dbd.CF.sub.2 ( I)
- wherein R.sub.f is a C.sub.3 -C.sub.6 perfluoroalkyl group, and has a melt flow rate of 0.01 to 200 .times. 10.sup.-3 cc/sec.
Dependencies are inferred from the claim text.