Process for producing polymaleimide

Details Process for producing polymaleimide Process for producing polymaleimide

1985-05-21

1986-04-01

Daus, Donald G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

526262, C07D40314

Patent

active

045799571

ABSTRACT:
A process for producing a polymaleimide which comprises reacting an aromatic dialdehyde with 2 to 60 moles, per mole of the aromatic dialdehyde, of aromatic amine represented by the formula (I): ##STR1## wherein X is a hydrogen atom, a halogen atom or an alkyl or alkoxy group each having 1 to 4 carbon atoms to obtain a polyamine, reacting the polyamine with maleic anhydride to obtain a polyamide acid, and dehydration-cyclizing the polyamide acid to obtain a polymaleimide.

REFERENCES:
patent: 4046777 (1977-09-01), Muller et al.
patent: 4113737 (1978-09-01), Balme et al.
patent: 4130564 (1978-12-01), Haug et al.
patent: 4131632 (1978-12-01), Suzuki et al.
patent: 4138406 (1979-02-01), Balasfalvy
patent: 4212959 (1980-07-01), Fukami et al.
patent: 4393177 (1983-07-01), Ishii et al.
patent: 4401777 (1983-08-01), Tsuboi et al.

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