Method for the preparation of a silicone defoamer

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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