Patent ID: 6313229
Filing Date: 2001-11-06
Classification: C08F,C08L

Abstract:
A process for making a blocky chlorinated polyolefin comprising:a) reacting a particulate semi-crystalline polyolefin having a density of from about 0.94 to 0.98, and a melt index from about 0.01 to about 40 g/10 min. with liquid or gaseous chlorine at a temperature from about 40 to about 100.degree. C.; optionally in the presence of a free radical source, catalyst, or UV radiation; in a liquid media until the bound chlorine content of said polyolefin is from about 10 to about 60 wt. %, wherein the media causes an equilibrium swelling of said polyolefin before chlorination of less than 10% volume increase at 25.degree. C. over its unswollen volume and said solvent is not a chlorinated solvent.