Preparation of sol chloroprene polymers

Details Preparation of sol chloroprene polymers Preparation of sol chloroprene polymers

C - Chemistry, Metallurgy

08

F

400/1812, 402/34

C08F 136/18 (2006.01) C08F 2/38 (2006.01) C08F 36/18 (2006.01) C08L 11/02 (2006.01)

Patent

CA 1043030

ABSTRACT OF THE DISCLOSURE Addition of a defined N-substituted amide in which at least one substituent is a 2-hydroxyethyl or 2-hydroxypropyl-terminated chain of up to about 50 oxyethylene or 2-oxypropylene units to an equeous alkaline emulsion in which chloroprene or a mixture of chloroprene with another monomer is undergoing polymer- iration in the presence of an alkyl mercaptan makes it possible to carry out the polymerization to a high degree of conversion, while at the same time avoiding excessive gel formation. This invention makes possible a significant increase in polymer yield without sacrifice of polymer quality or performance.

226315

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