发明授权
US4645848A Phenylene group-containing organopolysiloxanes and method for their preparation 失效
含亚苯基的有机聚硅氧烷及其制备方法

Phenylene group-containing organopolysiloxanes and method for their
preparation
摘要:
Phenylene group-containing organopolysiloxanes formed of a plurality of identical or different units represented by the structural formula: ##STR1## where in each case all three possible isomers in relation to the position of the SiO.sub.3/2 --R.sup.1 substituents on the phenylene group can be present concurrently, in which R.sup.1 stands for --CH.sub.2 --CH.sub.2 -- or CH.sub.3 --CH
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