Aromatic polyesters, polyesteramides, and compositions thereof

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

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Details

528176, 528179, 528193, 528219, 528271, 524601, 524602, 524604, 524607, C08G 6926

Patent

active

049008048

ABSTRACT:
An aromatic polyester consisting of 40-70 mol % of unit I derived from p-hydroxybenzoic acid, 1-8 mol % of unit II derived from m-hydroxybenzoic acid or isophthalic acid, 6-36 mol % of units III and IV derived from terephthalic acid and 2,6-naphthalene dicarboxylic acid, respectively, and 10-40 mol % of unit V derived from a symmetrical dihydroxy compound can be melt molded at a temperature of up to 330.degree. C. into an article having improved mechanical and thermal properties. An aromatic polyesteramide consisting of components I to V and unit VI having an anilino group is also provided. A filled composition is obtained by blending the polyester or polyesteramide with an inorganic filler. A magnetic resin composition is obtained by blending the polyester or polyesteramide with a magnetic powder.

REFERENCES:
patent: 3637595 (1972-01-01), Cottis et al.
patent: 4067852 (1978-01-01), Calundann
patent: 4169933 (1979-10-01), Jackson, Jr. et al.
patent: 4330457 (1982-05-01), East et al.
patent: 4337191 (1982-06-01), Favstritsky
patent: 4339375 (1982-07-01), Calundann et al.
patent: 4341688 (1981-07-01), Charbonneau et al.
patent: 4351917 (1982-09-01), Calundann et al.
patent: 4351918 (1982-09-01), Charbonneau et al.
patent: 4355132 (1982-10-01), East et al.
patent: 4851497 (1989-07-01), Wakui et al.

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