Carboxy-copolymer epoxide compositions and their preparation

Claim 1

A PROCESS FOR PREPARING THERMOSET RESINS WHICH COMPRISES (A) MIXING (1) A POLYEPOXIDE SELECTED FROM THE GROUP CONSISTING OF EPOXIDIZED ESTERS AND EPOXIDIZED DIOLEFINS, EACH HAVING AT LEAST TWO EPOXIDE GROUPS, GLYCIDYL POLYETHERS OF POLYHYDRIC ALCOHOLS, AND GLYCIDYL POLYETHERS OF POLYHYDRIC PHENOLS, (2) A DICARBOXYLIC ACID-AROMATIC ALCOHOL ACID ESTER WHEREIN THE DICARBOXYLIC ACID IS SELECTED FROM THE GROUP CONSISTING OF MALEIC ACID AND FUMARIC ACID, AND THE AROMATIC ALCOHOL IS SELECTED FROM THE GROUP CONSISTING OF PHENYLCARBINOL, THE METHYL, ETHYL, PROPYL, AND BUTYL, PHENYLCARBINOL, PHENETHYL ALCOHOL, THE METHYL, ETHYL, PROPYL, AND BUTYL, PHENETHYL ALCOHOLS, PHENYL BUTANEDIOL, THE METHYL AND ETHYL, PHENYL BUTANRDIOLS, PHENYL PROPANEDIOL, AND PHENOXY ETHANOLS AND PROPANOLS, AND (3) A VINYLIDENE COMPOUND SELECTED FROM THE GROUP CONSISTING OF STYRENE, THE METHYL STYRENES, THE HALO STYRENES, VINYL NAPHTHALENE, ACRYLONITRILE, METHACRYLONITRILE, NALKYL AND N,N-DIALKYL AMIDES OF ACIDS SELECTED FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACIDS, THE NUMBER OF CARBON ATOMS IN EACH N-ALKYL RADICAL NOT EXCEEDING TWENTY, ALKYL ESTERS OF ACIDS SELECTED FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACID, THE NUMBER OF CARBON ATOMS IN THE ALKYL GROUP NOT EXCEEDING TWENTY, VINYL PYRIDINE, VINYL FURANE, VINYL CYCLOHEXANE, MONOVINYL KETONES OF NOT OVER TWENTY CARBON ATOMS, AND VINYL HALIDES, SAID MIXTURE CONTAINING ONE TO TWO EPOXIDE GROUPS OF (1) PER CARBOXYL GROUP OF (2) AND FROM TWENTY TO SEVENTY PERCENT OF (3) BY WEIGHT BASED ON THE TOTAL COMPOSITION, AND (B) HEATING THE MIXTURE AT A TEMPERATURE OF 65*C. TO 150*C.