Process for the preparation of organopolysiloxanes having...

Details Process for the preparation of organopolysiloxanes having... Process for the preparation of organopolysiloxanes having...

2006-04-12

2008-12-02

Gulakowski, Randy (Department: 1796)

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

Synthetic resins

From silicon reactant having at least one...

C528S031000, C528S033000

Reexamination Certificate

active

07459514

ABSTRACT:
A process for the preparation of organosilicon compounds bearing silanol groups, in particular linear polyorganosiloxanes bearing lateral silanol groups, in a predictable manner and high yield, comprising reacting a similarly constructed Si—H functional organosilicon compound with water in the presence of a Group VIII metal catalyst, optionally in the presence of a cocatalyst. Predictable product structure and very few byproducts are particularly advantageous.

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Barnes G. H. et al. “The Preparation of Organosilanols via Metal-Catalyzed Reaction of Organosilicon Hybrides with Water”, Journal of Organic Chemistry, American Chemical Society, Easton, US, vol. 31, 1966, pp. 885-887.
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English Abstract corresponding to JP 2002-154917A, 2002.
English Abstract corresponding to JP 2003-082102A, 2003.

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