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2 034 866

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C1

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IPC

(21) (22)

Application

5060296/05, 1992-08-26

(22)

Actual filing date

1992-08-26

(45)

Published

1995-05-10

(72)

Inventor

Klokov B.A.Dushanin B.M.Tivanov V.D.Oleneva E.I.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF PREPARING POLYPHENYL SILOXANES Russian patent published in 1995 - IPC

Abstract RU 2034866 C1

FIELD: production of lacquers, enamel and resins. SUBSTANCE: method involves interaction of magnesium with mixture of chlorbenzene and organosilicon monomer in the presence of activator followed by hydrolytic condensation and distillation of solvent. Said condensation is carried out in medium of organic solvent in the presence of butanol. Mixture of tetraethoxy silane and vat residue of direct synthesis of methylchlorsilanes is used as mentioned above organosilicon monomer, volume ratio of these ingredients being 6.67: 0.10-5.57: 1.20. EFFECT: decreases expense of tetraethoxy silane, increases efficiency of the process. 2 tbl

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RU 2 034 866 C1

Authors

Klokov B.A.

Dushanin B.M.

Tivanov V.D.

Oleneva E.I.

Dates

1995-05-10—Published

1992-08-26—Filed

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