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2 072 368

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C1

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IPC

(21) (22)

Application

5040180/26, 1992-04-28

(22)

Actual filing date

1992-04-28

(45)

Published

1997-01-27

(72)

Inventor

Liakumovich A.G.Samuilov Ja.D.Budkin V.A.Starovojtov V.I.Solov'Eva N.B.Gol'Dberg Ju.M.

(73)

Holder

Aktsionernoe Obshchestvo Zakrytogo Tipa Gruppa

METHOD FOR PRODUCTION OF UNSATURATED POLYESTER RESIN Russian patent published in 1997 - IPC

Abstract RU 2072368 C1

FIELD: production of composite materials. SUBSTANCE: desired unsaturated polyester resin is prepared by interaction of maleic anhydride with endo-norbornene-2,3-dicarboxylic acid, diethylene glycol, ethylene glycol and with water, their molar ratio being (0.3-0.4):(0.6-0.7):(0.8-0.9): (0.2-0.3): (0.04-0.2) respectively. Mentioned above anhydride of endo-norbornene-2,3-dicarboxylic acid is used as modifying component. EFFECT: improves efficiency of the method. 1 tbl

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RU 2 072 368 C1

Authors

Liakumovich A.G.

Samuilov Ja.D.

Budkin V.A.

Starovojtov V.I.

Solov'Eva N.B.

Gol'Dberg Ju.M.

Dates

1997-01-27—Published

1992-04-28—Filed

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