Catalytic preparation of polyamides from bis(aminophenyl)sulphon

Details Catalytic preparation of polyamides from bis(aminophenyl)sulphon Catalytic preparation of polyamides from bis(aminophenyl)sulphon

1974-03-04

1976-06-01

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252437, C08G 6928

Patent

active

039608190

ABSTRACT:
Melt polycondensation of bis(aminophenyl)sulphone with dicarboxylic acid, especially aliphatic dicarboxylic acid, using as catalyst a specified Group VB compound, or metal salt or complex thereof. Typical catalysts are phosphinates or phosphonates in admixtures with metal salts.

REFERENCES:
patent: 3671498 (1972-06-01), Knight
patent: 3673162 (1972-06-01), Buckley et al.

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