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1 396 542

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A1

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IPC

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Application

3709264/05, 1984-03-13

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Actual filing date

1984-03-13

(45)

Published

1994-06-30

(72)

Inventor

Pakhomova I.E.Trezvov V.V.Bavol'Skaja I.S.Girshovich Kh.I.Klautsans Eh.Ja.Komras E.M.Pumpurs Kh.A.

METHOD OF POLYAMIDOIMIDES SYNTHESIS Russian patent published in 1994 - IPC

Abstract SU 1396542 A1

FIELD: chemical technology. SUBSTANCE: method involves interaction of trimellite anhydride, aromatic primary diamine and ε-caprolactam at molar ratio 1: (0.8-1): (0.2-1.2), respectively, in the presence of tri-(2-hydroxyethyl)isocyanourate at concentration 0.05-0.3 mole per 1 mole trimellite anhydride. Condensation is carried out in the medium of organic solvent at 200-220 C in the presence of catalyst up to preparing the resin with softening point 85-135 C by method "ring-and-ball". EFFECT: polyamidoimides prepared shows improved technological properties. 1 tbl

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SU 1 396 542 A1

Authors

Pakhomova I.E.

Trezvov V.V.

Bavol'Skaja I.S.

Girshovich Kh.I.

Klautsans Eh.Ja.

Komras E.M.

Pumpurs Kh.A.

Dates

1994-06-30—Published

1984-03-13—Filed

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