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Method for the preparation of a silicone defoamer

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专利名称:Method for the preparation of a silicone

defoamer composition

发明人:Miura, Takahiro申请号:EP87306342.4申请日:19870717公开号:EP02499A2公开日:19880127

摘要:A defoamer composition is obtained when a mixture of certain siloxane-containing components, a finely divided filler, a reaction catalyst and at least onecompound having in each molecule at least 1 group expressed by ≡COR⁵, -COOR⁶ or -(OR⁷)- is heated. R⁵ and R⁶ are the hydrogen atom or saturated or unsaturatedmonovalent hydrocarbon groups, R⁷ is a divalent hydrocarbon group having two to sixcarbon atoms, and the average value of is ≧1. The siloxane-containing componentscomprise resinous polyorganosiloxanes and typically, polydiorganosiloxanes. The heatedmixture is useful for defoaming anionic systems.

申请人:Dow Corning Kabushiki Kaisha

地址:15-1, Nishishimbashi 1-chome Minato-ku Tokyo 105 JP

国籍:JP

代理机构:Lewin, John Harvey

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