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2 084 466

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IPC

(21) (22)

Application

93002040/04, 1993-01-11

(22)

Actual filing date

1993-01-11

(45)

Published

1997-07-20

(72)

Inventor

Zagidullin R.N.Rasulev Z.G.Abdrafikova L.S.Gur'Janov V.E.Sarana N.V.Skachkov A.S.

(73)

Holder

Sterlitamakskoe Aktsionernoe Obshchestvo

PROCESS FOR PREPARING AMIDOEPICHLORO HYDRINE RESIN Russian patent published in 1997 - IPC

Abstract RU 2084466 C1

FIELD: chemical industry impregnation of cardboard products and preparation of water-resistant paper. SUBSTANCE: claimed process comprises preparing amidoepichlorohydrine resin by reacting di-, tri-, tetra- or polyamine with dichloroethane or dichloropropane at 60-125 C at (1-2):1 molar ratio, with dicarboxylic acid at 160-180 C and subsequently with epichlorohydrine at 40-48 C. The amine to dicarboxylic acid to epichlorohydrine molar ratio is (1-2): 1: (1-2), respectively. EFFECT: more efficient preparation process. 2 cl, 1 tbl

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RU 2 084 466 C1

Authors

Zagidullin R.N.

Rasulev Z.G.

Abdrafikova L.S.

Gur'Janov V.E.

Sarana N.V.

Skachkov A.S.

Dates

1997-07-20—Published

1993-01-11—Filed