Method for manufacturing an organopolysiloxane in which a polyme

Details Method for manufacturing an organopolysiloxane in which a polyme Method for manufacturing an organopolysiloxane in which a polyme

1989-09-26

1991-09-03

Michl, Paul R.

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

Synthetic resins

From silicon reactant having at least one...

528 37, 528 41, 528 43, 556453, 556460, 556462, C08G 7706

Patent

active

050456210

ABSTRACT:
A diorganopolysiloxane in which a polymerizable functional group is present at one (or both) molecule chain ends and in which an arbitrary group is present at the other end can be easily synthesized. The synthesis involves the opening of a cyclotrisiloxane using an alkali metal silanolate which bears the polymerizable functional group, followed by a capping reaction. The resulting diorganopolysiloxane can be used effectively as a feed material for manufacturing silicone rubbers, feed material for manufacturing novel grafted organopolysiloxanes, comonomer components for resins other than organopolysiloxanes or plastics, etc.

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Die Makromolekulare Chemie, vol. 189, No. 9, Sep. 1988, pp. 1997-2005, Basel, CH; Y. Gnanou et al.

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