METHOD OF PREPARING POLYMETHYLSILOXANE LIQUIDS Russian patent published in 1998 - IPC

Abstract RU 2111980 C1

FIELD: heat carriers and working liquids for hydraulic systems. SUBSTANCE: polymethylsiloxane liquids are prepared by hydrolysis of mixture of methyl trichlorosilane, dimethyl dichlorosilane and trimethyl chlorosilane followed by neutralization of hydrolysis product with soap as 5-30% suspension in polymethylsiloxane liquid at hydrolysis product to chalk weight ratio of 1: 0.0015-0.0020, filtration of hydrolysis product, catalytic regrouping of the resulting filtrate and fractionation. The claimed method makes it possible to reduce amounts of chalk and losses of hydrolysis product, and improve working conditions. EFFECT: more efficient preparation method. 1 tbl

Similar patents RU2111980C1

Title	Year	Author	Number
METHOD FOR PRODUCTION OF POLYMETHYL SILOXANE LIQUIDS	1996	Klokov B.A. Tivanov V.D. Klokova S.Ja. Novikov V.I. Anokhin N.F.	RU2107075C1
PROCESS FOR PREPARING POLYETHYLSILOXANE FLUIDS	1992	Klokov B.A. Grishutin Ju.P. Sobolevskij M.V. Koroleva T.V. Novikov V.I. Markina E.B. Shejnina S.Z. Vlasova T.A.	RU2048486C1
METHOD OF SYNTHESIS OF MONOMERS CONTAINING FUNCTIONAL GROUPS FOR POLYETHYLSILOXANE LIQUIDS SYNTHESIS	1992	Klokov B.A. Grishutin Ju.P. Sobolevskij M.V. Koroleva T.V. Novikov V.I. Markina E.B. Shejnina S.Z. Vlasova T.A.	RU2027718C1
METHOD FOR PRODUCTION OF POLYORGANOSILOXANE VARNISH	1995	Matveev L.G. Varakosov V.S. Shapoval N.N. Vorob'Ev N.I.	RU2108347C1
METHOD OF PREPARING OF POLYETHYLSILOXANE LIQUIDS	1992	Klokov B.A. Grishutin Ju.P. Sobolevskij M.V. Koroleva T.V. Tivanov V.D. Markina E.B. Shejnina S.Z. Vlasova T.A. Skorokhodov I.I.	RU2034865C1
METHOD OF HYDROLYSIS OF DIMETHYL DICHLOROSILANE	1999	Klokov B.A. Egarmin S.V. Savina T.M. Khe L.N. Kuz'Min D.S. Kara-Georgiev B.S. Luk'Janov A.Ju. Bokov O.Ja. Chausov P.V. Trufanov V.G.	RU2175333C2
METHOD FOR OBTAINING OLIGOMETHYLSILOXANES OF BRANCHED STRUCTURE	0	Sobolevskaya Lyudmila Viktorovna Kovalenko Susanna Ilinichna Fedotov Evgenij Vladimirovich Krushinskaya Zinaida Vasilevna Ershov Oleg Leonidovich Kochka Viktor Dmitrievich Kulabukhov Aleksandr Anatolevich	SU1689381A1
METHOD OF PREPARING OLIGOMETHYL-GAMMA-TRIFLUOROPROPYLSILOXANES	2004	Lotarev Mikhail Borisovich Koroleva Tat'Jana Vasil'Evna Skvortsova Larisa Borisovna Dobrovinskaja Elena Konstantinovna Natsjuk Sergej Nikolaevich	RU2268902C1
METHOD OF SYNTHESIS OF MONOMERS CONTAINING FUNCTIONAL GROUPS FOR SYNTHESIS OF POLYETHYLSILOXANE LIQUIDS	1992	Klokov B.A. Grishutin Ju.P. Sobolevskij M.V. Koroleva T.V. Novikov V.I. Markina E.B. Shejnina S.Z. Vlasova T.A. Skorokhodov I.I.	RU2036926C1
PROCESS FOR PREPARING OLIGOORGANOSILOXANES	0	Molchanov Boris Vladimirovich Sbrodov Aleksandr Ivanovich Sobolevskaya Lyudmila Viktorovna Chernyshev Evgenij Andreevich Chuprova Elena Aleksandrovna Polivanov Aleksandr Nikolaevich Khazanov Igor Iosifovich Nikulina Lyubov Sergeevna Chistov Sergej Fedorovich	SU1081179A1

RU 2 111 980 C1

Authors

Klokov B.A.

Savina T.M.

Tivanov V.D.

Dushanin B.M.

Danov P.A.

Dates

1998-05-27—Published

1996-03-28—Filed