PRIMER AND ADHESIVE COMPOSITIONS BASED ON CHLORINATED POLYOLEFINS HAVING HIGH CHLORINE CONTENTS

摘要

Adhesive compositions based on chlorinated polyolefins having chlorine conte nts greater than about 60 percent and molecular weights greater than about 500. The adhesive compositions contain the chlorinated po lyolefin and a phenolic resin. The chlorinated polyolefi ns are advantageous in that they can be prepared in an environmentally acceptable m anner and can be utilized as a substitute for the tradit ional chlorinated natural rubber materials utilized in adhesive compositions witho ut compromising adhesive performance. Preferred chlorina ted polyolefins are prepared by a process involving the dispersion and chlorinat ion of high surface area polyolefinic particles in an aq ueous medium.