CYCLOPEN-TANE-TETRACARBOXYLIC ACID

摘要

1334868 Cyclopentane-tetracarboxylic acid containing polyesters PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN 1 Dec 1970 [3 Dec 1969] 57034/70 Heading C3R [Also in Division C2] An alkyd resin composition comprises an alkyd resin already partially esterified and condensed but containing free OH groups in admixture with cyclopentane-tetracarboxylic acid consisting of the isomer melting at about 160‹ C. and giving a tetramethyl ester prepared by esterifying a solution of the acid with a solution of diazomethane in known manner, said ester having absorption spectrum bands of 9À6-9À75-9À90-10À55-11À20-12À03 and 14À50 microns wavelengths. An example is given in which such a composition is prepared and tested.