Preparation of nylon polyamide with cobalt salt

Details Preparation of nylon polyamide with cobalt salt Preparation of nylon polyamide with cobalt salt

1981-12-30

1984-07-10

Anderson, Harold D.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526172, 526311, 528310, 528318, 528319, 528323, 528363, C08G 6900, C08G 6908, C08G 6916

Patent

active

044593945

ABSTRACT:
A polyamide is produced by polymerizing at least one of alpha, beta unsaturated carboxylic acid, an ammonium salt of an alpha, beta unsaturated carboxylic acid, an alpha, beta unsaturated nitrile and water, a beta-amino propionic acid or alkyl derivative thereof and an alpha, beta unsaturated amide and ammonia in the presence of a catalyst containing cobalt. Preferred catalysts comprise cobaltous carboxylates and cobaltic salts of the enol of beta-di-ketones.

REFERENCES:
patent: 2691643 (1954-10-01), Chirtel et al.
patent: 2749331 (1956-06-01), Breslow
patent: 3499879 (1970-03-01), Kobayashi et al.
patent: 3629203 (1971-12-01), Volker et al.
patent: 4283524 (1981-08-01), Greene
Korshak et al.--Synthetic Hetero-Chain Polyamides, 1964, p. 9.

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