Preparation of poly(p-methylenebenzoate) copolyesters

Details Preparation of poly(p-methylenebenzoate) copolyesters Preparation of poly(p-methylenebenzoate) copolyesters

1982-11-30

1984-02-14

Nielsen, Earl A.

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

Synthetic resins

From carboxylic acid or derivative thereof

204 75, C08G 6306, C25B 304

Patent

active

044317972

ABSTRACT:
An electrochemical process is disclosed for the preparation of high molecular weight copolymers of poly(p-methylenebenzoate) and poly(alkyleneterephthalate) wherein ammonia is used in the electrolysis step. The ammonium salts thus formed are removed by heat decomposition. Copolymers are prepared from the resulting electrolysis product.

REFERENCES:
patent: 4130719 (1978-12-01), Cerefice et al.
patent: 4182847 (1980-01-01), Fields et al.
patent: 4220753 (1980-09-01), Cerefice et al.
patent: 4381229 (1983-04-01), Donohue

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