Process for the production of linear organosiloxane polymers by

Details Process for the production of linear organosiloxane polymers by Process for the production of linear organosiloxane polymers by

1993-07-15

1995-05-30

Marquis, Melvin I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 18, 528 21, 528 23, C08G 7710

Patent

active

054202213

ABSTRACT:
A process disclosed for the production of organosiloxanes which is based on the use of a judiciously selected catalyst, e.g., a phosphorus-nitrogen homopolymeric or oligomeric compound, a derivative thereof, a complex thereof, sulfuric acid, a fluorinated alkane sulfonic acid, a kaolin clay, or a mixture of any of the foregoing, to disproportionate or to condense and disproportionate a mixture of two different organosiloxanes which have different molecular weights, without, at the same time, increasing the cyclics content of the mixture.

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