Resinous products containing free hydroxyl radicals prepared by polymerizing aceylonitrile in admixture with an interpolymer of an alkenol and another unsaturated monomer

Claim 1

A PROCESS FOR PREPARING A COMPOSITE RESINOUS COMPOSITION COMPRISING POLYMERIZING AT AN ELEVATED TEMPERATURE IN THE PRESENCE OF A PEROXIDE POLYMERIZATION CATALYST, FROM ABOUT 3/5 TO 5/6 PART BY WEIGHT OF ACRYLONITRILE IN ADMIXTURE WITH FROM 1/6 TO ABOUT 2/5 PART BY WEIGHT OF A PREVIOUSLY POLYMERIZED HYDROXY-CONTAINING INTERPOLYMER CONTAINING THREE DISTINCT TYPES OF RECURRING UNITS IN THE INTERPOLYMER MOLECULES, WHICH INTERPOLYMER WAS DERIVED FROM THE PARTIAL DEACYLATION OF THE POLYMERIC PRODUCT OBTAINED BY THE INTERPOLYMERIZATION OF (1) A LOWER ALKANOATE OF AN ALKENOL SELECTED FROM THE GROUP CONSISTING OF ISOPROPENYL ALCOHOL AND VINYL ALCOHOL AND (2) A MONO-ETHYLENICALLY UNSATURATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYLENE, PROPYLENE, STYRENE, A LOWER ALKYL MALEATE, VINYL CYANOETHYL FORMAL, VINYL CHLORIDE AND ACRYLONITRILE, SAID INTERPOLYMER BEING CHARACTERIZED BY THE PRESENT OF FROM ABOUT 3% TO ABOUT 20% BY WEIGHT OF THE INTERPOLYMER OF FREE HDROXYL RADICALS DERIVED FROM THE INTERPOLYMERIZED LOWER ALKANOATE OF THE ALKENOL.