2-(aryl)propylalkylpolysiloxane type silicone fluids and methods

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

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556456, 556459, 556429, C07F 710, C07F 708

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active

054363586

ABSTRACT:
The present invention relates to novel cyclic or linear 2-(aryl)propylalkylpolysiloxane type silicone fluids as represented by the formula I and their preparation methods by hydrolyzing mixtures of 2-(aryl)propylalkyldichlorosilane and diorganodichlorosilane as represented by the formula II and formula III respectively. ##STR1## wherein, X.sub.1 and X.sub.2 represent independently hydrogen or alkyl(C.sub.1 -C.sub.3), phenyl, phenoxy, fluoro, chloro, bromo, mercapto, mercaptomethyl group; R.sup.2 and R.sup.3 represent independently methyl or phenyl group; R.sup.1 in the formula I is same as CH.sub.2 CH.sub.2 R in formula II or cyclohexyl wherein R is C.sub.n H.sub.2n+2 (n=1-16), chloromethylene, cyanomethylene, phenyl, or cyano group; M represents H or SiMe.sub.3 group wherein Me is methyl group and when M is hydrogen, the silanol groups at the both ends of the molecule easily undergo dehydration and cyclize to form the cyclic silicone fluids; n and m can be 2-200 and the ratio n/m can be 1:0.01-1:100.

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