METHOD OF ORGANOSILICON RESIN MAKING Russian patent published in 1994 - IPC

Abstract RU 2017758 C1

FIELD: paint and varnish industry. SUBSTANCE: method involves reesterification of phenyltrichlorosilane with 4,4,4′-dihydroxydiphenylpropane in the presence of alkylarylsulfoacid at mole ratio phenyltrichlorosilane:4, 4,4′-dihydroxydiphenylpropane: alkylaryl- sulfoacid = 1:(0.75-1.25):(0.01-0.03) at 100-250 C. Drying time is 0.2 h, film thermal stability at 600 C is 6-7 h, film bending is 3 mm, benzostability is 24 h. EFFECT: improved method of resin making. 2 tbl

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RU 2 017 758 C1

Authors

Matveev L.G.

Varakosov V.S.

Bragina N.V.

Shkuro V.G.

Fedotov A.I.

Dates

1994-08-15—Published

1991-08-19—Filed