Interpolymer produced from polyhydric alcohol, polybasic acid, and interpolymer of vinylaromatic compound with drying oil or acid

Claim 1

A NON-GELLED RESINOUS INTERPOLYMER FORMED ABOUT 30 TO 80 PERCENT BY WEIGHT OF (A) A NONGELLED INTERPOLYMER OF A MONOVINYLAROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF STYRENE, VINYLNAPHTHALENE, FLUOROSTYRENE, CHLOROSTYRENE, METHOXYSTYRENE, HYDROXYSTYRENE, METHYLSTYRENE, TRICHLOROMETHYLSTYRENE, TRIFLUOROMETHYLSTYRENE, AND ALPHA-METHYLSTYRENE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DRYING OILS AND DRYING OIL FATTY ACIDS HAVING A WOBURN IODINE NUMBER BETWEEN ABOUT 133 AND 274 AND A WOBURN DIENE NUMBER BETWEEN ABOUT 33 AND 91, SAID MONOVINYLAROMATIC COMPOUND IN POLYMERIC FORM COMPRISING FROM ABOUT 18 TO 50 PERCENT BY WEIGHT OF SAID INTERPOLYMERT (A), THE REMAINDER BEING (B) A POLYHYDRIC ALCOHOL CONTAINING AS SOLE FUNCTIONAL GROUPS AT LEAST THREE AND NOT MORE THAN SIX HYDROXYL GROUPS PER MOLECULE, AND (C) A POLYBASIC ORGANIC ACID SELECTED FROM THE GROUP CONSISTING OF SATURATED AND UNSATURATED POLYBASIC ACIDS CONTAINING CARBOXYL GROUPS AS SOLE FUNCTIONAL GROUPS, THE RELATIVE PROPORTIONS OF (B) AND (C) BEING SUCH AS TO RENDER THE RATIO OF HYDROXYL GROUPS TO CARBOXYL GROUPS IN THE STARTING REACTANTS BETWEEN ABOUT 1.1 AND 2.0 TO 1, THE SAID INTERPOLYMER HAVING AN ACID NUMBER BELOW 30.