Polyester of phenyl-4-hydroxybenzoic acid and 4-hydroxybenzoic a

Details Polyester of phenyl-4-hydroxybenzoic acid and 4-hydroxybenzoic a Polyester of phenyl-4-hydroxybenzoic acid and 4-hydroxybenzoic a

1980-03-10

1981-07-21

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 40R, 528206, 528298, 528305, C08L 6704

Patent

active

042798035

ABSTRACT:
A novel polyester is provided which has been found to exhibit an optically anisotropic melt phase at a temperature which enables it readily to undergo melt processing to form quality fibers, films, molded articles, etc. The polyester contains substantial concentrations of recurring 3-phenyl-4-oxybenzoyl and/or 2-phenyl-4-oxybenzoyl moieties in combination with 4-oxybenzoyl and/or 6-oxy-2-naphthoyl moieties in the proportions indicated. The wholly aromatic polyester is capable of forming the desired anisotropic melt at a temperature below approximately 350.degree. C.

REFERENCES:
patent: 4067852 (1978-01-01), Calundann
patent: 4130545 (1978-12-01), Calundann
patent: 4161470 (1979-07-01), Calundann
patent: 4184996 (1980-01-01), Calundann
patent: 4219461 (1980-08-01), Calundann

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