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Patent Searching and Data


Title:
PRODUCTION OF ORGANOPOLYSILOXANE
Document Type and Number:
Japanese Patent JPH04353523
Kind Code:
A
Abstract:
PURPOSE:To produce an organopolysiloxane having two or three diorganohydrogensiloxy groups at the end of the molecular chain and useful as a modifying agent for organic resins, etc., in good productivity. CONSTITUTION:(A) an organosilane or an organopolysiloxane of formula I (R is monobalent hydrocarbon group not containing an aliphatic unsaturated bond, preferably methyl; A is H, Li; n is an integer of 0-200, especially 5-90) is reacted with (B) an organohalogenosilicone compound of formula II (B is >=2C divalent hydrocarbon group not containing an aliphatic unsaturated bond; X is halogen, preferably CI; m is 0 or 1) in an A/B equivalent ratio of 1:>=1, especially 1:>=1.5, preferably in a solvent such as benzene at room temperature, if necessary, in the presence an amine compound at 50-200 deg.C to produce an organopolysiloxane of formula III having two or three diorganohydrogensiloxy groups.

Inventors:
OKAWA SUNAO
YAMADA SHUJI
Application Number:
JP15765791A
Publication Date:
December 08, 1992
Filing Date:
May 31, 1991
Export Citation:
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Assignee:
DOW CORNING TORAY SILICONE
International Classes:
C08G77/06; C08G77/12; C08G77/48; C08G77/50; (IPC1-7): C08G77/06; C08G77/50