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2 076 112

(13)

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IPC

(21) (22)

Application

92001893/04, 1992-10-14

(22)

Actual filing date

1992-10-14

(45)

Published

1997-03-27

(72)

Inventor

Skornjakov A.S.Kogan L.M.Kormer V.A.Sidorov S.L.Shapovalova N.N.Krasnova K.V.Nikulin S.S.

(73)

Holder

Gosudarstvennoe Predprijatie Institut Sinteticheskogo Kauchuka Im.Akad.S.V.Lebedeva"

METHOD FOR PRODUCTION OF MODIFIED BUTADIENE POLYMER COMPRISING DICHLOROCYCLOPROPANE GROUPS Russian patent published in 1997 - IPC

Abstract RU 2076112 C1

FIELD: production of chlorine-containing rubber. SUBSTANCE: desired polymer is prepared by interaction of hydrocarbon solution of polybutadiene with chloroform and with aqueous solution of hydroxide of alkaline metal. The process is carried out in the presence of phase transfer catalyst, water soluble polymer having common formula where R is alkyl C₁-C₃,, n= 350-600 is used as said catalyst. Mentioned above interaction takes place at 20-50 C at molar ratio of polymer, chloroform, hydroxide of alkaline metal and water soluble polymer 1:(1-20):(0.3-3.0):(0.005-0.05) respectively. EFFECT: improves efficiency of the method. 1 tbl

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RU 2 076 112 C1

Authors

Skornjakov A.S.

Kogan L.M.

Kormer V.A.

Sidorov S.L.

Shapovalova N.N.

Krasnova K.V.

Nikulin S.S.

Dates

1997-03-27—Published

1992-10-14—Filed