Chloride reduction in polysiloxanes

Details Chloride reduction in polysiloxanes Chloride reduction in polysiloxanes

1990-03-12

1990-10-09

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556450, 556459, 556460, 556461, 556466, 556453, C07F 720

Patent

active

049622218

ABSTRACT:
The instant invention is a process for reducing residual chloride content of polysiloxane fluids, without detrimental effects on the polysiloxane polymer. The process comprises contacting the polysiloxane fluid, containing residual chloride, with selected weakly-basic alkaline metal compounds at a temperature less than 100.degree. C. After an appropriate contact time, the polysiloxane fluid is separated from the solid alkaline metal compounds. In a preferred embodiment of the present invention, water is added to the process to facilitate removal of residual chloride.

REFERENCES:
patent: 4127598 (1978-11-01), McEutee
patent: 4156689 (1979-05-01), Ashby et al.
patent: 4661612 (1987-04-01), George et al.

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