Aromatic copolyester

Details Aromatic copolyester Aromatic copolyester

1990-06-26

1991-09-03

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528171, 528176, 528190, 528194, C08G 802, C08G 7500, C08G 6302, C08G 6318

Patent

active

050456261

ABSTRACT:
Aromatic copolyesters comprise 10 to 90 mol % of the repeating unit (I) and 90 to 10 mol % of the repeating unit (II): ##STR1## wherein Y.sup.1 and Y.sup.2 may be the same or different and are, for example, a lower alkylene group, a lower alkylidene group or a carbonyl group, Ar is, for example, a phenylene group or a naphthylene group, and m or n is zero or one, and the copolyesters have high glass transition temperature, heat resistance, modulus, moulding processability and mechanical strength and are useful for shaped articles in mechanical, electrical or medical applications.

REFERENCES:
patent: 3133898 (1964-05-01), Keck
patent: 3293223 (1966-12-01), Duling
patent: 3933713 (1976-01-01), Sokolov et al.
patent: 3996201 (1976-12-01), Buxbaum
Chemical Abstracts--vol. 79, No. 14--Abstract No. 79503d (Oct. 8, 1973).

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