Method for producing OH-terminal organo hydrogen polysiloxanes

Details Method for producing OH-terminal organo hydrogen polysiloxanes Method for producing OH-terminal organo hydrogen polysiloxanes

2006-09-29

2010-02-02

Ojurongbe, Olatunde S (Department: 1796)

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C528S031000, C556S451000, C556S463000, C556S465000, C556S466000

Reexamination Certificate

active

07655811

ABSTRACT:
Hydroxyl-terminal organopolysiloxanes having diorganosiloxy groups and Si—H groups are prepared by reacting the appropriate chlorosilanes with less than 0.5 mol water per mol of hydrolyzable chlorine in a first step and recovering gaseous HCl, and more fully hydrolyzing with additional water in a second step.

REFERENCES:
patent: 5169970 (1992-12-01), Ohkawa
patent: 5548053 (1996-08-01), Weidner et al.
patent: 6143912 (2000-11-01), Lindner et al.
patent: 6232423 (2001-05-01), Kohler et al.
patent: 7208617 (2007-04-01), Gammie
patent: 3126343 (1983-01-01), None
patent: 10311724 (2004-10-01), None
patent: 0967236 (1999-12-01), None
patent: 07330904 (1995-12-01), None
English Patent Abstract corres. to EP 0967236 A1.
English Patent Abstract corres. to DE 3126343 A1.
English Patent Abstract corres. to DE 10311724 A1.
English Patent Abstract corres. to JP 073330904.

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