Method for the preparation of polyvinyl chloride resins

Details Method for the preparation of polyvinyl chloride resins Method for the preparation of polyvinyl chloride resins

C - Chemistry, Metallurgy

08

F

402/304, 402/487

C08F 2/42 (2006.01) C08F 2/20 (2006.01) C08F 14/06 (2006.01)

Patent

CA 1126449

ABSTRACT OF THE DISCLOSURE A method for preparing a low molecular weight polymer in an aqueous medium from a monomer mixture mainly composed of vinyl chloride monomer, comprising: adding an organic compound containing at least one mercapto group and at least one hydroxy or carboxyl group per molecule to the aqueous medium, and wherein at least 50 weight percent of the organic compound is added to the aqueous medium when the monomer conversion is between 1% and 30%. Polymers produced by the method disclosed have a relatively low degree of polymerization, good heat stability and desirable particle size distribution.

297336

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