Polymerization of polysiloxanes

Details Polymerization of polysiloxanes Polymerization of polysiloxanes

1981-04-27

1982-12-07

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 20, 528 21, 528 33, 528 37, 556462, C08G 7706

Patent

active

043628559

ABSTRACT:
High molecular weight organopolysiloxanes, e.g., polydimethylpolysiloxane oils and gums, are facilely and rapidly prepared by polymerizing/rearranging a lower molecular weight organopolysiloxane in the presence of a catalytically effective amount of an alkaline catalyst and a tris-(oxaalkyl)-amine accelerator having the formula (I):

REFERENCES:
patent: 3890278 (1975-06-01), Lehn et al.
patent: 4138543 (1979-02-01), Bargain et al.
patent: 4254247 (1981-03-01), Boileau et al.
patent: 4316001 (1982-02-01), Boileau et al.

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