Polyester of a cyclic diacid anhydride with an epoxide

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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528 93, 528103, C08G 6300, C08G 5900

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active

041255208

ABSTRACT:
The invention provides a process for the production of a polyester which comprises initiating a reaction between a polyterminal epoxide being the reaction product of one mole bisphenol A and two moles of epichlorohydrin, a mono-terminal epoxide and a cyclic diacid anhydride in the presence of a catalytically effective quaternary salt heating to a point at which the reaction becomes a self-sustaining exothermic reaction and controlling the reaction such that the temperature of the mixture is not reduced until after the exothermic reaction has begun to subside.

REFERENCES:
patent: 3213067 (1965-10-01), Pohl et al.
patent: 3370043 (1968-02-01), Milligan
patent: 3627720 (1971-12-01), Hinton et al.
patent: 3723390 (1973-03-01), Carpenter et al.
patent: 3766146 (1973-10-01), Thompson
patent: 3864316 (1975-02-01), Robinson
patent: 3979368 (1976-09-01), Malfroid
patent: 4028289 (1977-06-01), Brown

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