Homopolymers and copolymers of vinyl chloride having low...

Details Homopolymers and copolymers of vinyl chloride having low... Homopolymers and copolymers of vinyl chloride having low...

C - Chemistry, Metallurgy

08

F

402/5.5

C08F 14/06 (2006.01) C08F 6/00 (2006.01)

Patent

CA 1112391

CASE 3253-P POLYMERS OF VINYL CHLORIDE HAVING LOW VINYL CHLORIDE MONOMER CONTENT, AND METHOD OF MAKING SAME INVENTORS: Michael Frank Saggese, Fred V. Owens, and Barbara Fila, citizens of the United States of America, residing at Nashville, Tennessee, Trenton, New Jersey, and Edison, New Jersey; respectively. ABSTRACT OF THE DISCLOSURE Dry particulate vinyl chloride homopolymers and copolymers, and dry particulate compostions containing major proportions of these polymers, having 2 parts or less per million of vinyl chloride monomer are provided. The viny] chloride monomer can be so low as to be undetec- able. The reduction in monomer content is achieved by subjecting the dry polymer particles to elevated temperature, agitation, and subatmo- spheric pressure.

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