Patent ID: 6774181
Filing Date: 2004-08-10
Classification: C08G,C08J,C08L,C09D

Abstract:
A process for making an aqueous emulsion of self-emulsifiable polyolefin which comprises the steps of:(a) providing a mixture of: 1. at least one polyolefin possessing a first reactive functionality and having a weight average molecular weight of at least about 30,000; and 2. at least one hydrophilic polymer possessing a second reactive functionality being reactive with the first reactive functionality of polyolefin (1) and having a weight average molecular weight less than that of polyolefin (1); and (b) heating the mixture of step (a) to a temperature at or above the melting point of polyolefin (1), first reactive functionality of polyolefin (1) reacting with second reactive functionality of hydrophilic polymer (2) at said temperature to provide a self-emulsifiable polyolefin; and (c) adding an emulsion-forming amount of water to the self-emulsifiable polyolefin of step (b) to provide an aqueous emulsion of the self-emulsifiable polyolefin.