Method for the preparation of an .omega.,.omega.-dihydroorganopo

Details Method for the preparation of an .omega.,.omega.-dihydroorganopo Method for the preparation of an .omega.,.omega.-dihydroorganopo

1986-12-22

1988-04-12

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

525478, 528 31, 528 34, 556470, C08G 7702

Patent

active

047375639

ABSTRACT:
A novel method is proposed for the synthesis of an organopolysiloxane having two hydrogen atoms directly bonded to the same silicon atom at the molecular chain end. The method comprises mixing a dihydro isopropenyloxy silane with an organosilicon compound having at least one silanolic hydroxy group so that a condensation reaction takes place between the isopropenyloxy group of the former reactant and the silanol group of the latter reactant forming acetone as a by-product. The method is advantageous in respect of the absence of any acidic or basic by-product contained in the product as an impurity in the conventional methods.

REFERENCES:
patent: 4180642 (1979-12-01), Takago et al.

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