Process for molecular weight lowering of polyvinyl halides

Details Process for molecular weight lowering of polyvinyl halides Process for molecular weight lowering of polyvinyl halides

C - Chemistry, Metallurgy

08

F

402/1, 400/2051,

C08F 12/16 (2006.01) C08F 2/42 (2006.01) C08F 14/06 (2006.01) C08F 291/00 (2006.01) C08K 5/37 (2006.01)

Patent

CA 1065994

ABSTRACT OF THE DISCLOSURE Vinyl halide homopolymers, copolymers and graft polymers of substan- tially lower molecular weight are obtained when polymerization is carried out in the presence of an organotin mercaptide ester and an organic azo initiator. The products are faster fusing and have lower melt viscosities than corresponding polymers of the same molecular weight prepared by high temperature molecular weight reduction methods. The low molecular weight and excellent fusion characteristics of the products render these polymers particularly useful an molding, extrusion. and coating applications. - 1 -

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