Resinous compositions obtained by copolymerizing a partial ester of a polyhydric alcohol, a monocarboxylic acid and an unsaturated dicarboxylic acid with a vinyl monomer

Claim 1

THE METHOD OF PREPARING A RESINOUS COMPOSITION COMPRISING AN INTERPOLYMER OF FROM ABOUT 10 TO 50% BY WEIGHT OF (A) A PARTIAL ESTER OF A POLYHYDRIC ALCOHOL HAVING FROM 3 TO 8 HYDROXYL GROUPS, AN ALIPHATIC SATURATED MONOCARBOXYLIC ACID HAVING FROM 4 TO 18 CARBON ATOMS PER MOLECULE, AND A MONETHYLENICLALY UNSATURATED ALIPHATIC DICARBOXYLIC ACID, AND FROM ABOUT 50 TO 90% OF (B) AT LEAST ONE OTHER MONOMER CONTAINING A CH2=C< GROUP, SAID METHOD COMPRISING THE STEPS OF PARTIALLY ESTERIFYING SAID POLYHYDRIC ALCOHOL HAVING FROM 3 TO 8 HYDROXYL GROUPS WITH SAID ALIPHATIC SATURATED MONOCARBOXYLIC ACID, WHICH INTERNALLY PLASTICIZES THE COMPOSITION, HAVING FROM 4 TO 18 CARBON ATOMS PER MOLECULE, THEN REACTING THIS PARTIAL ESTER WITH SAID MONOETHYLENICALLY UNSATURATED ALIPHATIC DICARBOCYLIC ACID TO FORM A SECOND PARTIAL ESTER WITH DICARBOXYLIC ACID, AND THEN COPOLYMERIZING THE SECOND PARTIAL ESTER WITH SAID AT LEAST ONE OTHER MONOMER CONTAINING A CH2=C<GROUP, SAID MONOMER BEING COPOLYMERIZABLE WITH SAID SECOND ESTER.

Claim 2

THE METHOD OF PREPARING A RESINOUS COMPOSITION COMPRISING AN INTERPOLYMER OF FROM ABOUT 10 TO 50% BY WEIGHT OF (A) A PARTIAL ESTER OF A POLYHYDRIC ALCOHOL HAVING FROM 3 TO 8 HYDROXYL GROUPS, AN ALIPHATIC SATURATED MONOCARBOXYLIC ACID HAVING FROM 4 TO 18 CARBON ATOMS PER MOLECULE, AND A MONETHYLENICLALY UNSATURATED ALIPHATIC DICARBOXYLIC ACID, AND FROM ABOUT 50 TO 90% OF (B) AT LEAST ONE OTHER MONOMER CONTAINING A CH2=C< GROUP, SAID METHOD COMPRISING THE STEPS OF PARTIALLY ESTERIFYING SAID POLYHYDRIC ALCOHOL HAVING FROM 3 TO 8 HYDROXYL GROUPS WITH SAID ALIPHATIC SATURATED MONOCARBOXYLIC ACID, WHICH INTERNALLY PLASTICIZES THE COMPOSITION, HAVING FROM 4 TO 18 CARBON ATOMS PER MOLECULE, THEN REACTING THIS PARTIAL ESTER WITH SAID MONOETHYLENICALLY UNSATURATED ALIPHATIC DICARBOCYLIC ACID TO FORM A SECOND PARTIAL ESTER WITH DICARBOXYLIC ACID, AND THEN COPOLYMERIZING THE SECOND PARTIAL ESTER WITH SAID AT LEAST ONE OTHER MONOMER CONTAINING A CH2=C<GROUP, SAID MONOMER BEING COPOLYMERIZABLE WITH SAID SECOND ESTER.