Modification of olefin-carboxylic acid halide copolymers

Claim 1

A PROCESS FOR PREPAREING POLYMERIC MODIFIERS WHICH COMPRISES FORMING A MOLTEN OLEFIN CARBOXYLIC ACID HALIDE COPOLYMER CONTAINING AT LEAST 50 MOLE PERCENT, BASED ON COPOLYMER, OF A POLYMERIZED OLEFIN WHEREIN THE OLEFIN MONOMER HAS THE FORMULA RCH=CH2, WHERE R IS A RADICAL SELECTED FROM THE CLASS CONSISTIN GOF HYDROGEN, ALKYL RADICALS HAVING FROM 1 TO 8 CARBON ATOMS, ALKENYL RADICALS HAVING 1 TO 8 CARBON ATOMS AND ARYL RADICALS HAVING FROM 6 TO 12 CARBON ATOMS AND AT LEAST 0.1 MOLE PERCENT, BASED ON COPOLYMERS, OF A POLYMERIZED HALIDE OF AN A,B-ETHYLENICALLY UNSTAURATED CARBOXYLIC ACID HAVING FROM 3 TO 8 CARBON ATOMS, ADING TO SAID MOLTENM COPOLYMER AT LEAST ONE MODIFYING COMPOUND HAVING A MOLECULAR WERIGHT OF LESS THAN 2000 CONTAINING AT LEAST ONE GROU REACTIVE WITH ALKANOIC ACID HALIDES, WHICH GROUP IS SELECTED FROM THE CLASS CONSISTIN GOF THE ALCOHOLIC HYDROXYL GROUP, AMINO GROUPS CONTAINING AT LEAST ONE HYDROGEN BONDED TO NITROGEN, GROUPS CONATINING ENOLIZABLE HYDROGEN ATTACHED TO CARBON, THE MERCAPTO GROP, THE PHOSPHNO GROUP, ALKALI METAL SALTS OF THE FOREGOING GROUPS, THE GRIGNARD REAGENT GROUP AND THE GYDROGEN GROUP WHERE ATTACHED TO AN AROMATIC RING CARBON ATOM IN COMBINATION WITH A FRIEDEL CRAFTS CATALYST, REACTING SAID MOLTEN COPOLYMER AND SAID ADDED MODIFYING COMPOUND BY MILLING SAID MOLTEN COPOLYMER AND SAID ADDED MODIFYING COMPOUND, AND RECOVERING A POLYMERIC MODIFIER CONTAINING FROM 0.1 TO 50 MOLE PERCENT, BASED ON COPOLYMER, OF SAID MODIFYING COMPOUND BONDED TO SAID ACID HALIDE COPOLYMER.