Tetrafluoroethylene and n-alkyl-trifluorovinyl ether copolymer c

Details Tetrafluoroethylene and n-alkyl-trifluorovinyl ether copolymer c Tetrafluoroethylene and n-alkyl-trifluorovinyl ether copolymer c

1998-07-08

2000-11-28

Reddick, Judy M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524805, 524535, 524520, 525276, 525200, C08L 2718, C08L 1502, C08L 5104, C08L 5106, C08F 210

Patent

active

061536814

ABSTRACT:
Compositions which act as thermoplastic elastomers are disclosed which have an elastomeric polymer portion and a crystalline polymer portion. Also disclosed is the manufacture of thermoplastic elastomers from tetrafluoroethylene, and selected trifluorovinyl alkyl ethers (and optionally other monomers) by using a free radical polymerization in aqueous medium to produce an elastomeric copolymer of tetrafluoroethylene and one or more selected trifluorovinyl alkyl ethers, and thereafter using a free radical polymerization to form a fluorinated crystalline polymer portion. The fluorinated thermoplastic elastomer has excellent physical properties and may be used to make molding such as gaskets and seals.

REFERENCES:
patent: 2917548 (1959-12-01), Dixon
patent: 3159609 (1964-12-01), Harris
patent: 4158678 (1979-06-01), Tatemoto et al.
patent: 5317061 (1994-05-01), Chu et al.
patent: 5741855 (1998-04-01), Kaduk et al.

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