Polyester process

Details Polyester process Polyester process

1978-02-02

1978-09-26

Phynes, Lucille M.

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

Synthetic resins

From carboxylic acid or derivative thereof

260861, C08G 6300, C08F 1814

Patent

active

041169441

ABSTRACT:
The present invention provides a process for the production of a polyester having an acid number which is not greater than 65 which comprises reacting an acid anhydride with a monoterminal epoxide in the presence of a solvent for the polyester in such a way that a self-sustaining reaction is initiated within 200 seconds of the reactants being mixed together and said reaction results in the attainment of a maximum peak temperature within 200 seconds of initiation.

REFERENCES:
patent: 2966479 (1960-12-01), Fischer
patent: 3213067 (1965-10-01), Pohl et al.
patent: 3374208 (1968-03-01), Seiner et al.
patent: 3723390 (1973-03-01), Carpenter et al.
patent: 3766145 (1973-10-01), Thompson

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