Resin having excellent heat resistance and exhibiting anisotropy

Details Resin having excellent heat resistance and exhibiting anisotropy Resin having excellent heat resistance and exhibiting anisotropy

1988-09-27

1989-09-05

Kight, John

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

Synthetic resins

From ketone or ketene reactant

528125, 528128, 528190, 528193, 528206, 528271, C08G 200, C08G 400, C08G 600, C08G 1000

Patent

active

048640131

ABSTRACT:
A polyester copolymer comprise 20 to 80 percent by mole of hydroxy-benzoic acid units, 1 to 40 percent by mole of naphthalene units and 1 to 40 percent by mole of dihydroxy-diphenylketone units. It is improved in the heat resistance and is specified by exhibiting the anisotropy in the molten state.

REFERENCES:
patent: 3778410 (1973-12-01), Kuhfuss et al.
patent: 3975487 (1976-08-01), Cottis et al.
patent: 4067852 (1978-01-01), Calundann
patent: 4184996 (1980-01-01), Calundann
patent: 4562244 (1985-12-01), Yoon

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