Polyester of substituted or unsubstituted phenoxyhydroquinone

Details Polyester of substituted or unsubstituted phenoxyhydroquinone Polyester of substituted or unsubstituted phenoxyhydroquinone

1984-08-28

1985-07-16

Lee, Lester L.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264176F, 264236, 26433121, 528176, 528190, 528191, 528193, 528194, 528271, C08G 6360

Patent

active

045295654

ABSTRACT:
A polyester having a melt anisotropy, which consists essentially of structural units represented by the following formulae is described. ##STR1## wherein X is hydrogen, chlorine, methyl, ethyl, propyl, butyl, methoxy, ethoxy, nitro or cyano, Ar is selected from 1,4-phenylene, chloro-1,4-phenylene, methyl-1,4-phenylene, 4,4'-biphenylene, 3,5,3',5'-tetramethyl-4,4'-biphenylene, 1,4-naphthalene, 1,5-naphthalene, 2,6-naphthalene, dimethyl-1,4-phenylene, trimethyl-1,4-phenylene and oxy-4,4'-diphenylene, and k, l, m and n represent molar fractions of the corresponding units and they satisfy the following requirements: ##EQU1## and

REFERENCES:
patent: 3723388 (1973-03-01), Bell
patent: 4159365 (1979-06-01), Payet
patent: 4238600 (1980-12-01), Jackson, Jr. et al.
patent: 4242496 (1980-12-01), Jackson, Jr. et al.
patent: 4355133 (1982-10-01), East et al.
patent: 4360658 (1982-11-01), Jackson, Jr. et al.
patent: 4412058 (1983-10-01), Siemionko
patent: 4447593 (1984-05-01), Funakoshi et al.
Jackson, The British Polymer Journal, vol. 12, pp. 154-162, 1980.

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