Process for the production of polyamide imides

Details Process for the production of polyamide imides Process for the production of polyamide imides

1983-08-22

1984-09-18

Cockeram, Herbert S.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

524736, 528 45, 528 73, C08G 1818

Patent

active

044725671

ABSTRACT:
The condensation of organic polyisocyanates, lactams, and cyclic polycarboxylic acid anhydrides in the presence of mono- or disubstituted imidazole catalyst results in a polyamide imide having an increased softening temperature.

REFERENCES:
patent: 3658773 (1972-04-01), Zecher et al.
patent: 3830785 (1974-08-01), Matsui et al.
patent: 3833525 (1974-09-01), Orlando et al.

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