Unsaturated polyesters prepared by the sequential reaction of a phenol-aldehyde witha mono-oxirane or other hydroxyether forming compound, and a polycarboxylic acid

Claim 1

AN UNSATURATED POLYESTER RESIN OBTAINED BY THE PROCESS WHICH COMPRISES THE STEPS OF: (1) REACTING A PHENOL HAVING THE FORMULA: 3-R1,5-R2,R3,R4-PHENOL WHEREIN R1 AND R2 ARE EACH SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, AND SUBSTANTIALLY STRAIGHT CHAIN ALIPHATIC RADICALS, R3 IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALRICYCLIC ARYL AND ARALYL GROUPS, AND R4 IS AN ARALKYL GROUP, WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALDEHYDES AND KETONES TO FORM A PHENOLIC CONDENSATION PRODUCT, EMPLOYING A RATIO OF U TO 0.85 MOLE OF ALDEHYDE OR KETONE PER MOLE OF PHENOL, (2) REACTING THE PHENOLIC CONDENSATION PRODUCT WITH A SUBSTANCE REACTIVE WITH THE PHENOLIC HYDROXYL GROUPS THEREOF, AND SELECTED FROM THE GROUP CONSISTING OF A MONOXIRANE RING COMPOUND, AN ALKYLENE HALOHYDRIN, AN ALKYLENE CARBONATE, AND MIXTURES THEREOF TO FORM A HYDROXYETHER DERIVATURE BY REACTING (3) ESTERIFYING THE HYDROXYETHER DERIVATURE BY REACTING IT WITH A POLYCARBOXYLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYCARBOXYLIC COMPOUND ACIDS, POLYCARBOXYLIC ACID ANHYDRIDES, POLYCARBOXYLIC ACICS, HALIDES, AND MIXTURES THEREOF TO PRODUCE AN UNSATURATED POLYESTER RESIN, AT LEAST ONE POLYCARBOXYLIC COMPOUND BEING ETHYLENICALLY UNSATURATED; THE RESULING POLYSTER RESIN CONTAINING AT LEAST ONE ISOLATED ADDITION-POLYMERIZABLE CARBON-TO-CARBON DOUBLE BOND.