Aromatic polyester compounds and process for preparing them

Details Aromatic polyester compounds and process for preparing them Aromatic polyester compounds and process for preparing them

1987-03-30

1989-03-28

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528176, C08G 1702, C08G 1708, C08G 3910

Patent

active

048165522

ABSTRACT:
Polymers having improved tenacity and heat resistant properties are prepared by heating a mixture of a 4-acetoxybenzoic acid derivative, a hydroquinone diacetate derivative, a dicarboxylic acid, and a 4-acetoxy-(4-acetoxyphenyl)benzoate derivative in two steps to remove generated acetic acid and form the polymer, which is useful for making fibers, films and molded products.

REFERENCES:
patent: 3637595 (1972-01-01), Cottis et al.
patent: 3756988 (1973-09-01), Kollar et al.
patent: 3772405 (1973-11-01), Hamb

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