Air drying unsaturated polyesters from diallylidene pentaerythritol, hydroxyl terminated esters, and allyl and benzyl ethers

Claim 1

A PROCESS FOR THE PRODUCTION OF SYNTHETIC RESINS, WHICH COMPRISES REACTING (A) AT LEAST ONE DIALLYLIDENE ACETAL SELECTED FROM THE GROUP CONSISTING OF DIALLYLIDENE PENTAERYTHRITOL AND A DIESTER OF A DICARBOXYLIC ACID WITH A MONOALLYLIDENE ACETAL OF AN AT LEAST TRIHYDRIC ALCOHOL, SAID MONOALLYLIDENE ACETAL STILL CONTAINING ONE REACTIVE HYDROXY GROUP, WITH (B) AT LEAST ONE ESTER CONTAINING FREE EXCESS ALCOHOLIC HYDROXY GROUPS WHICH IS THE CONDENSATION REACTION PRODUCT OF (1) AT LEAST ONE POLYHYDRICALCOHOL AND (2) AT LEAST ONE DIFUNCTIONAL ACID FREE FROM ACETYLENIC BONDS IN WHICH ACID COMPONENT AT LEAST 50 EQUIVALENT PERCENT CONSIST OF THE RADICAL OF AT LEAST ONE A,B-ETHYLENICALLY UNSATURATED IDCARBOXYLIC ACID AND (C) AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALLYL AND BENZYL ETHERS OF A POLYHYDRIC ALCOHOL, WHICH ETHERS CONTAIN AT LEAST ONE FREE HYDROXY GROUP IN THEIR MOLECULE, IN THE PRESENCE OF A CATALYTIC AMOUNT OF (D) AN ACID REACTING ADDITION CATALYST.