Process for the production of aromatic polyesters from hydroxybe

Details Process for the production of aromatic polyesters from hydroxybe Process for the production of aromatic polyesters from hydroxybe

1977-01-28

1978-02-21

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08G 6318

Patent

active

040751732

ABSTRACT:
A process for the production of aromatic polyesters which comprises preparing a prepolymer by subjecting the compounds of the formulae: ##STR1## to heat-polycondensation in the molar ratios of (I) : (II) = 1 : 100 to 100 : 1 and (II) : (III) = 1 : 10 to 10 : 1, pulverizing the prepolymer thus prepared and then heating the resultant in an inert gas or under reduced pressure.

REFERENCES:
patent: 3637595 (1972-01-01), Cottis et al.
patent: 3884876 (1975-05-01), Cottis et al.

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