Method of preparing alkoxy silane and a silicone containing resi

Details Method of preparing alkoxy silane and a silicone containing resi Method of preparing alkoxy silane and a silicone containing resi

1988-06-07

1991-05-07

Bleutge, John C.

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

Synthetic resins

From silicon reactant having at least one...

528 14, 528 15, 528 16, 528 31, 528 34, 528 37, 556469, C08G 7704

Patent

active

050138081

ABSTRACT:
A method of preparing an alkoxysilane and a silicone resin includes the steps of combining a siloxane A having a first boiling point with a catalyst in a reaction vessel. A tri or tetra alkoxy functional silane monomer B is added to the vessel having a second boiling point. The contents of the vessel are heated. By a rearrangement reaction, an alkoxysilane is distilled from the vessel. The alkoxysilane has a boiling point which is lower than the mixture of the boiling points of the siloxane A, the silane monomer B and the temperature of the heated vessel. A silicone resin having alkoxy functionality and no silanol functionality is recovered from the vessel.

REFERENCES:
patent: 2878195 (1959-03-01), Hurd
patent: 2909549 (1959-10-01), Bailey
patent: 4061609 (1977-12-01), Bobear

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