Fluorosiloxydiphenylsiloxy block copolymers

Details Fluorosiloxydiphenylsiloxy block copolymers Fluorosiloxydiphenylsiloxy block copolymers

1976-12-15

1978-02-21

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

2604482R, 260825, C08G 7704

Patent

active

040751694

ABSTRACT:
There is provided by the present invention a process for producing a solvent resistant block copolymer having desirable processability comprising reacting perfluoroalkylethylene substituted cyclic trisiloxane in the presence of a solvent promoter which may be tetrahydrofuran and in the presence of a dilithium compound catalyst and then adding a diphenyl cyclic trisiloxane and allowing the reaction to go to the completion.

REFERENCES:
patent: 3337497 (1967-08-01), Bostick
patent: 3503926 (1970-03-01), Saylor

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