Products and process for preparation of polyamides and shaped ar

Details Products and process for preparation of polyamides and shaped ar Products and process for preparation of polyamides and shaped ar

1975-05-29

1977-08-16

Ansher, Harold

Stock material or miscellaneous articles

Composite

Of polyamidoester

260 775C, 260 775R, 428424, 428458, 428474, B32B 1502, B32B 1508, B32B 2734

Patent

active

040427501

ABSTRACT:
Polyamides are prepared by reacting aromatic diacid with aromatic or aliphatic diamine in the molar ratio of about 1:0.5 to about 1:0.9 and then reacting this product with at least 0.1 to about 0.5 up to about 0.75 moles of an aromatic or an aliphatic diisocyanate. The products are useful as wire enamels, coatings, and molding resins as well as films, fibers, adhesives, and impregnating materials.

REFERENCES:
patent: 2333914 (1943-11-01), Berchet
patent: 2364204 (1944-12-01), Fuller
patent: 3284416 (1966-11-01), Kamal
patent: 3523925 (1970-08-01), Kamal et al.
patent: 3578639 (1971-05-01), Sheffer
patent: 3916074 (1975-11-01), Knackstedt
patent: 3922447 (1975-11-01), Isaksen et al.

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