Process of preparing maleimides

Details Process of preparing maleimides Process of preparing maleimides

1970-11-27

1978-10-24

Schain, Howard E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

26032626, 2603265FM, C08G 7312

Patent

active

041220765

ABSTRACT:
Imide group containing solutions are prepared by reacting the Diels-Alder reaction product of furan and maleic anhydride with amine, heating the resultant amic acid to form the maleimide material with regeneration of furan. The imide-containing products can be isolated.

REFERENCES:
patent: 2524136 (1950-10-01), Prill
patent: 2524145 (1950-10-01), Tawney
patent: 3485796 (1969-12-01), Naselow
patent: 3562223 (1971-02-01), Bargain et al.
patent: 3652511 (1972-03-01), Vincent et al.
patent: 3868348 (1975-02-01), Berlin et al.

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