Polyamide-imide resin and its production

Details Polyamide-imide resin and its production Polyamide-imide resin and its production

1979-11-16

1981-10-13

Schain, Howard E.

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...

260 326NA, 260 334P, 428458, 4284258, 4284735, 528 73, 174110SR, C08G 1873, C08G 1874, C08G 1875, C08G 1876

Patent

active

042949521

ABSTRACT:
A polyamide-imide resin obtained by reacting in a cresol type solvent a polyisocyanate containing isocyanurate rings, an aromatic diisocyanate, a lactam and a polycarboxylic acid containing at least one acid anhydride group, said polyisocyanate being used in an amount of 1 to 30 equivalent % and said lactam in an amount of 20 to 80 equivalent % each based on the total isocyanate equivalent can give a resin composition or a varnish suitable for coating, particularly for producing insulated wire excellent in heat resistance, flexibility, resistance to Freon, wear resistance, and the like.

REFERENCES:
patent: 3658773 (1972-04-01), Zecher et al.
patent: 3763269 (1973-10-01), Formaini
patent: 3790530 (1974-02-01), Koerner et al.
patent: 3884880 (1975-05-01), Disque et al.
patent: 3937673 (1976-02-01), Koerner et al.
patent: 3952084 (1976-04-01), Edelman et al.
patent: 4094864 (1978-06-01), Onder
patent: 4094866 (1978-06-01), Onder

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