Method for producing siloxane copolymers

United States of America Patent

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Sep 14, 2010
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Jun 18, 2009
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Apr 21, 2005
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Apr 27, 2004

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Abstract

Siloxane copolymers are prepared stepwise by reacting an aminoalkyldiorganoalkoxysilane with a di- or polyisocyanate to form an alkoxysilyl-terminated urea compound, and the urea compound or its reaction product with water is subsequently reacted with a di- or polysilanol-functional polymer to form a copolymer.

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WACKER CHEMIE AG

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C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....

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Inventor Name	Address	# of filed Patents	Total Citations
Ziche, Wolfgang	Burghausen, DE	30	169

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Method for producing siloxane copolymers

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United States of America Patent

11568132

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PATENT NO	7795367
APP PUB NO	20090156774A1
SERIAL NO	11568132
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 14, 2010	US,7795367,B2 US7795367B2	GRANTED PATENT AS SECOND PUBLICATION
June 18, 2009	US,20090156774,A1 US20090156774A1	FIRST PUBLISHED PATENT APPLICATION

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11568132

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