Fluorosiloxydiphenylsiloxy block copolymers

Details Fluorosiloxydiphenylsiloxy block copolymers Fluorosiloxydiphenylsiloxy block copolymers

1975-10-09

1977-06-07

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

2604482R, 260825, C08G 7704

Patent

active

040283380

ABSTRACT:
There is provided by the present invention a solvent resistant block copolymer having desirable processability comprising a copolymer of the formula, ##STR1## WHERE R is an alkyl radical of 1 to 3 carbon atoms, R.sup.1 is a perfluoroalkyl radical of 1 to 8 carbon atoms, Vi is vinyl, B is selected from the class consisting of lithium and hydrogen, x varies from 20 to 400 and y varies from 700 to 6000 and z varies from 0 to 100.
There is also provided by the present invention an advantageous process for producing the above block copolymer.

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

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