Process for producing high molecular weight vinyl copolymers

Details Process for producing high molecular weight vinyl copolymers Process for producing high molecular weight vinyl copolymers

C - Chemistry, Metallurgy

08

F

402/478

C08F 226/08 (2006.01) C08F 226/06 (2006.01)

Patent

CA 1253292

Abstract Process for Producing High Molecular Weight Vinyl Copolymers Disclosed is a method of producing high molecular weight copolymers from vinyl monomers such as vinylpyridine and styrene by emulsion polymeri- zation which comprises combining the monomers with a particular surfacant, a polymerization initiator in an aqueous medium at a solids level of 5-50% by weight, and carrying out the polymerization at a pH of 10-14 at a temperature of 40-90°C until the conversion is greater than 90%.

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