Patent ID: 6107258
Filing Date: 2000-08-22
Classification: C08F,C08L,C10L,C10M,C10N

Abstract:
A process for preparing a functionalized olefin copolymer comprising the steps of:(1) preparing an oil or solvent solution of an acylated olefin copolymer,(2) preparing a solution of at least one performance enhancing compound at a concentration of from 5 to 40 weight percent in surfactant,(3) preparing a solution of at least one coupling compound at a concentration of from 5 to 40 weight percent in surfactant, wherein said coupling compound contains more than one amino, hydroxy and/or thiol group capable of reacting with the carboxylic group of the acylated olefin copolymer, and mixing and heating the solutions (1), (2) and (3) in any order or simultaneously at a temperature of 120.degree. to 200.degree. C. for a time sufficient to effect reaction of the amino, hydroxy or thiol group of the performance enhancing compound and the coupling compound with the carboxylic group of the acylated olefin copolymers and to effect coupling of at least two acylated olefin copolymers; wherein said coupling compound is selected from the group consisting of organic polyamines, polyalcohols, polyhydroxy or thiol amines, amide-amines and amino guanidines; and wherein the performance enhancing compound is selected from the group consisting of monoamines, sterically hindered polyamines, heterocyclic thiols and hydroxyamines; and wherein said surfactant is selected from the reaction products of aliphatic and aromatic hydroxy compounds with ethylene oxide, propylene oxide or mixtures thereof.