Process for the continuous preparation of polydiorganosiloxanes

Details Process for the continuous preparation of polydiorganosiloxanes Process for the continuous preparation of polydiorganosiloxanes

1978-02-02

1978-12-05

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604488R, 528 35, C07F 708

Patent

active

041285689

ABSTRACT:
A process for the production of polymeric organosiloxanes comprising reacting diorganosiloxanes with substances regulating the chain length in the presence of alkaline and/or acid reaction catalysts and wherein the polymerization takes place in a reactor consisting of several zones and is provided with stirring or conveying elements, the arrangement of the stirring or conveying elements being such that the flow of material produced by the stirring or conveying element in each zone is the opposite of that in the adjacent zone or zones.

REFERENCES:
patent: 3803195 (1974-04-01), Nitzsche et al.
patent: 3853933 (1974-12-01), Siciliano
patent: 3853934 (1974-12-01), Siciliano et al.
patent: 3903047 (1975-09-01), Ashby
patent: 3939195 (1976-02-01), Lucking et al.
patent: 3978104 (1976-08-01), Razzano

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