US Patent 7491786 Crosslinkable compositions based on organosilicon compounds

Patent 7491786 was granted and assigned to Wacker Chemie AG on February, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Wacker Chemie AG

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7491786

Date of Patent

February 17, 2009

Patent Application Number

11067808

Date Filed

February 28, 2005

Patent Citations Received

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US Patent 12018151 Preparation for producing a polymer crosslinkable by condensation reaction, polymer composition crosslinkable by condensation reaction, process for producing a silicone elastomer and silicone elastomer

Patent Primary Examiner

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Randy Gulakowski

Patent abstract

The invention relates to crosslinkable compositions based on organosilicon compounds and having controllable modulus, to a process for their preparation and to their use, said compositions comprising(a) polymers of the formulaXnR3-nSi-A-SiR2—(CH2)3NHY (I)(b) polymers of the structureX1kR53-kSi-A1-SiX1kR53-k (II)(c) optionally, silanes of the formulaR6mSiX24-m (III)and/or partial hydrolyzates thereof, and(d) optionally, silanes of the formulaR4oSiR7pX34-o-p (IV)and/or partial hydrolyzates thereof,where X, X1 and X3 are OH or a hydrolyzable group, R, R4, R5, and R7 are hydrocarbyl groups, and A is a divalent linking group.