Patent ID: 6277922
Filing Date: 2001-08-21
Classification: C08F

Abstract:
A chlorinated vinyl chloride polymer composition comprising:a low color chlorinated polymer of vinyl chloride, or a chlorinated polymer of vinyl chloride and vinyl component monomer wherein prior to chlorination 100 parts by weight of vinyl chloride or vinyl chloride and vinyl component monomer is polymerized in the presence of from about 0.03 to about 5.00 parts by weight of a chain transfer composition comprising at least one mercaptan chain transfer agent and at least one non-polymerizable material which is characterized by being miscible with said mercaptan and substantially insoluble in water, and from about0.02 to 0.5 parts by weight of at least one surfactant characterized in that the surfactant is a hydroxypropyl methyl cellulose ether having a methoxyl substitution of from about 15 percent to about 35 percent and a hydroxypropoxyl substitution of from about 4 percent to about 35 percent.