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2 043 999

(13)

C1

(51)

IPC

(21) (22)

Application

5023885/05, 1992-01-22

(22)

Actual filing date

1992-01-22

(45)

Published

1995-09-20

(72)

Inventor

Susorov I.A.Lukina V.M.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Polimernykh Materialov

METHOD FOR PRODUCTION OF STABLE COPOLYMERS OF TRIOXANE Russian patent published in 1995 - IPC

Abstract RU 2043999 C1

FIELD: organic technology. SUBSTANCE: copolymerization of epichlorohydrin with 1,3,5-trioxane, their quantities being 10-25 and 90-75 respectively. Said copolymerization is carried out in solution of carbon tetrachloride, cation catalyst being used. Then thus prepared dispersion of half-finished product is separated of solvent and is affected by heat treatment. Said heat treatment takes place at 125-140 C in 2.5 solution of sodium hydroxide in mixture of N,N-dimethylformamide with water. EFFECT: improves efficiency of the method. 4 tbl

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RU 2 043 999 C1

Authors

Susorov I.A.

Lukina V.M.

Dates

1995-09-20—Published

1992-01-22—Filed

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