Process for preparing vinyl chloride polymers

Details Process for preparing vinyl chloride polymers Process for preparing vinyl chloride polymers

C - Chemistry, Metallurgy

08

L

C08L 27/06 (2006.01) C08F 14/06 (2006.01) C08K 5/04 (2006.01) C08K 5/134 (2006.01)

Patent

CA 2110209

-16- TITLE OF THE INVENTION PROCESS FOR PREPARING VINYL CHLORIDE POLYMERS ABSTRACT OF THE DISCLOSURE A process for preparing vinyl chloride polymers comprises suspending and dispersing vinyl chloride or its mixture with comonomers in polymerization initiators in an aqueous medium and subjecting the resultant suspension to suspension polymerization. The suspension comprises a phenolic antioxidant compound having a molecular weight not lower than 400 and a .beta. -diketone compound in combination. By this, on irradiation with ? -ray, the vinyl chloride polymer undergoes little yellowing.

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