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Application

96119320/04, 1996-09-27

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Actual filing date

1996-09-27

(45)

Published

1999-04-10

(72)

Inventor

Berendjaev V.I.Lunina E.V.Vasilenko N.A.Kotov B.V.

(73)

Holder

Nauchno-Issledovatel'Skij Fiziko-Khimicheskij Institut Im.L.Ja.Karpova

METHOD OF PREPARING POLYAZOMETHINES Russian patent published in 1999 - IPC

Abstract RU 2128673 C1

FIELD: chemical industry. SUBSTANCE: polyazomethines are prepared by polycondensation of diamines with dialdehydes in melt of organic solvent which is solid at room temperature at 110-180 C for 0.5-4 h. Solvent is mixture of benzoic acid with benzimidazole or 2-methyl benzimidazole. Method makes it possible to improve quality of the desired product by increasing molecular weight of polyazomethines. EFFECT: greater process efficiency. 8 ex

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RU 2 128 673 C1

Authors

Berendjaev V.I.

Lunina E.V.

Vasilenko N.A.

Kotov B.V.

Dates

1999-04-10—Published

1996-09-27—Filed

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