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2 005 750

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C1

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IPC

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Application

5054920/05, 1982-07-16

(22)

Actual filing date

1982-07-16

(45)

Published

1994-01-15

(72)

Inventor

Kostrichkin A.V.Kochetov D.P.Kokorev V.A.Leukhin A.G.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Khimicheskoj Tekhnologii

COMPOSITION FOR PREPARING ELASTOMERS Russian patent published in 1994 - IPC

Abstract RU 2005750 C1

FIELD: preparation of polydieneurethane coatings. SUBSTANCE: the composition comprises an amine hardener and also a liquid prepolymer of the general formula: OCN-C7H6COONHR′CONHC(CH3)2(R)C(CH3)2CONHR′COONHC7H6-NCO wherein R-C4H6 or -C5H8-, R′-C2H4 or -C3H6-; n is 10-70. The amine hardener is used as a melt or a 50-80% solution. Elastomers based on such a composition are prepared while stirring and at a residual pressure of not higher than 5 mm Hg. The hardening operation is performed at room temperature or at 100-120 C for 2-24 hr. EFFECT: improve quality of elastomers. 1 tbl

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RU 2 005 750 C1

Authors

Kostrichkin A.V.

Kochetov D.P.

Kokorev V.A.

Leukhin A.G.

Dates

1994-01-15—Published

1982-07-16—Filed

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