Polymeric compositions of terpolymers reacted with aminohydroxy compounds

Claim 1

THE PROCESS FOR THE PREPARATION OF A POLYMERIC COMPOSITION OF IMPROVED FLEXIBILITY COMPRISING THE STEPS OF REACTING A COPOLYMER PREPARED BY POLYMERIZING BY FREE RADICALS TO A MOLECULAR WEIGHT OF AT LEAST 30008 A MONOMERIC COMPOSITION COMPRISING (A) 20-85% BY WEIGHT OF A VINYL AROMATIC HYDROCARBON, (B) 1/15% BY WEIGHT OF AN UNSATURATED ACID SELECTED FROM THE CLASS CONSISTING OF ACRYLIC, METHACRYLIC, MALEIC, FUMARIC, ITACONIC AND TETRAHYDROPHTHALIC ACIDS AND THE MONOAMID AND THE ALKYL MONOESTER DERIVATIVES OF MALEIC, FUMARIC, ITACONIC AND TETRAHYDROPHTHALIC ACIDS, AND (C) 10-75% OF AN UNSATURATED ESTER SELECTED FROM THE CLASS CONSISTING OF ACRYLATES METHACRYLATES, MALEATES, FUMARATES, ITACONATES AND TETRAHYDROPHTHALATES; THE ESTER GROUP IN EACH OF THE AFORESAID MONESTERS AND DIESTERS BEING AN ALKYL GROUP HAVING NO MORE THAN 10 CARBON ATOMS THEREIN, AND IN SAID ACRYLATES AND METHACRYLATES, SAID ALKYL ESTER GROUP HAVING AT LEAST 4 CARBON ATOMS THEREIN, AND UNDER CONDITIONS SUITABLE FOR REMOVAL OF WATER OF CONDENSATION RESULTING FROM AMIDIFICATION WITH AN AMINOHYDROXY COMPOUND HAVING ONE AMINO GROUP AND AT LEAST ONE END N MORE THAN THREE HYDROXY GROUPS THEREIN, SAID AMINO GROUP HAVING AT LEAST ONE HYDROGEN ATOM ATTACAHED TO THE NITROGEN, EACH SAID HYDROXY GROUP OF SAID AMINOHYDROXY COMPOUND BEING AT LEAST 2 CABON ATOMS REMOVED FROM SAID AMINO GROUP, SAID AMINO HYDROXY COMPOUND HAVING A HYDROCARBON NUCLEUS WITH NO MORE THAN 10 CARBON ATOMS THEREIN AND BEING SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC, AROMATIC AND CYCLOALIPHATIC HYDROCARBON WHICH HAVE NO SUBSTITUENT GROUPS THEREON OTHER THAN SAID AMINO AND SAID HYDROXY GROUPS, AND SAID REACTION BEING CONDUCTED UNTIL THE PROPORTION OF AMIDE GROUPS ATTACHED BY SAID REACTION REPRESENTS AT LEAST 1% BY WEIGHT OF THE RESULTANT COPOLYMER BUT SAID REACTION BEING STOPPED BEFORE WATER OF CONDENSATION REMOVED FROM THE REACTION SUBSTANTIALLY EXCEEDS THE THEORETICAL AMOUNT FOR FORMING SAID AMIDE.