Preparation of alkoxysilethylene endblocked polydiorganosiloxane

Details Preparation of alkoxysilethylene endblocked polydiorganosiloxane Preparation of alkoxysilethylene endblocked polydiorganosiloxane

Filed on

1990-01-18

Date issued

1990-10-09

Examiner

Marquis, Melvyn I.

Patent Class

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

SubClass

Synthetic resins

SubSubClass

From silicon reactant having at least one...

Other Related Categories

528 31, 528 32, 556479, 525478, C08G 7706

Type

Patent

Status

active

Patent number

049621742

Description

ABSTRACT:
A method of producing alkoxysilethylene endblocked polydiorganosiloxane consists essentially of first reacting hydroxyl endblocked polydiorganosiloxane with an excess of a SiH compound having from 2 to 4 SiH groups in the presence of a platinum catalyst, then reacting that product with vinyltrialkoxysilane to give the desired polymer.

REFERENCES:
patent: 3175993 (1965-03-01), Weyenberg
patent: 4687829 (1987-08-01), Chaffee et al.
patent: 4772675 (1988-09-01), Klosowski et al.
patent: 4847400 (1989-07-01), Krahnke et al.
patent: 4871827 (1989-10-01), Klosowski et al.

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