CYCLOTRISILOXANE SYNTHESIS METHOD Russian patent published in 2010 - IPC C08G77/08 

Abstract RU 2402577 C2

FIELD: chemistry.

SUBSTANCE: method enables to carry out a polysiloxane catalytic regrouping reaction at temperature not higher than 100°C and can be realised in industrial conditions. The invention discloses a method for synthesis of cyclotrisiloxane of general formula: [R1R2Si]3, where R1 - CH3-; R2 - C6H5-; F3C-CH2-CH2-; CH2=CH-, using an anionic reagent in form of thermally decomposing product (tetramethylammonium hydroxide) in amount of 0.5-5 % of the weight of loaded hydrolysate with subsequent equilibration of the reaction mass, decomposition of the catalyst and extraction of desired products.

EFFECT: method provides high output of cyclotrisiloxane having different composition and can be realised on an industrial scale.

2 cl, 1 dwg, 4 ex

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RU 2 402 577 C2

Authors

Baratova Tat'Jana Nikolaevna

Kormer Vitalij Abramovich

Blokhin Viktor Ivanovich

Fedorov Vladimir Alekseevich

Dates

2010-10-27Published

2008-11-05Filed