Liquid methyl vinylphenylpolysiloxane resins

Details Liquid methyl vinylphenylpolysiloxane resins Liquid methyl vinylphenylpolysiloxane resins

1974-09-06

1976-08-31

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 465G, 2604482Q, 260825, 260827, 427387, C08G 7704

Patent

active

039780252

ABSTRACT:
Liquid methylvinylphenylsiloxane resins are provided which are suitable for coating electrical conductors; they possess the particular advantage that the surfaces of such coatings can be crosslinked such that the surfaces are not sticky. These resins comprise recurring units chosen from the formulae: CH.sub.3 SiO.sub.1.5, (CH.sub.3).sub.2 SiO, CH.sub.3 (CH.sub.2 =CH)SiO, CH.sub.3 (C.sub.6 H.sub.5 SiO, C.sub.6 H.sub.5 SiO.sub.1.5 and (C.sub.6 H.sub.5).sub.2 SiO and corresponding to the average general formula: ##EQU1## IN WHICH Q represents an alkyl group with 1 to 4 carbon atoms, x and y, which may be identical or different, each represent a number from 0.55 to 0.85, z represents a number from 0.08 to 0.35, u represents a number from 0.08 to 0.3, and w represents a positive number which does not exceed 0.1, the sum x + y + z being from 1.5 to 1.9, and having a functional group content E of from 2.5 to 2.9.

REFERENCES:
patent: 3489782 (1970-01-01), Pruvost et al.
patent: 3527655 (1970-09-01), Ballard
patent: 3629297 (1971-12-01), Antonen
patent: 3759867 (1973-09-01), Merrill et al.
patent: 3792012 (1974-02-01), Zdaniewski

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