Phthalic acid ester-modified organopolysiloxane and method for i

Details Phthalic acid ester-modified organopolysiloxane and method for i Phthalic acid ester-modified organopolysiloxane and method for i

1990-01-18

1990-12-04

Marquis, Melvyn I.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525446, C08L 8300

Patent

active

049754904

ABSTRACT:
There is disclosed a novel phtalic acid ester-modified organopolysiloxane having the general formula ##STR1## wherein R.sup.1 is a monovalent hydrocarbon group, R.sup.2 is a group R.sup.1 or a group with the formula ##STR2## with the proviso that at least one of the groups R.sup.2 in each molecule is the group with the formula ##STR3## in which R.sup.3 is an alkyl group, R.sup.4 is an alkylene group, and m is a positive integer.
The organosiloxane is useful as a co-reactant in the preparation of organic resins such as polyesters, polyamides and polyimides.

REFERENCES:
patent: 4539379 (1985-09-01), Hallgren
patent: 4588770 (1986-05-01), Wurminghausen et al.
patent: 4898918 (1990-02-01), Yamamoto et al.

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