PROCESS FOR PREPARING CYCLIC METHYLVINYLSILOXANES

申请公布号：CA1044248(A)

申请号：CA19740207337

申请日期：1974.08.19

申请公布日期：1978.12.12

申请人：

GENERAL ELECTRIC COMPANY

发明人：RAZZANO, JOHN S.

分类号：B01J23/00;C07B61/00;C07F7/21;(IPC1-7):07F7/21

主分类号：B01J23/00

摘要：<p>Cyclic sym-tetramethyltetravinyltetrasiloxane is prepared by cracking a methylvinylpolysiloxane hydrolysis product in admixture with an excess of a high boiling hydrocarbon solvent using heat and potassium hydroxide as the catalyst. The process provides high yields without the need for expensive catalysts and solvents and potentially hazardoux reaction conditions.</p>

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