Process for preparation of organopolysiloxanes
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1. A process for producing an organopolysiloxane, comprising polymerizing an organosiloxane using an alkali catalyst in the presence of a dehydrating agent.
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Abstract
The present process for producing an organopolysiloxane is characterized in that the polymerization of an organosiloxane by using an alkali catalyst is carried out in the presence of a reversible dehydrating agent such as magnesium sulfate and calcium carbonate or an irreversible dehydrating agent such as calcium oxide. According to this manufacturing process, there is a quite distinct mutual relation between the preset composition of the organopolysiloxane to be manufactured and the viscosity of the actually manufactured organopolysiloxane.
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- 1. A process for producing an organopolysiloxane, comprising polymerizing an organosiloxane using an alkali catalyst in the presence of a dehydrating agent.
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