Method for bulk polymerization of vinyl chloride

Details Method for bulk polymerization of vinyl chloride Method for bulk polymerization of vinyl chloride

C - Chemistry, Metallurgy

08

F

402/304, 402/396

C08F 14/06 (2006.01) B01J 19/02 (2006.01) B05D 5/08 (2006.01) B05D 7/22 (2006.01) C08F 2/00 (2006.01) C08F 2/02 (2006.01)

Patent

CA 1077197

ABSTRACT OF THE DISCLOSURE Vinyl chloride monomer or a monomeric mixture composed mainly of vinyl chloride is bulk-polymerized in a polymerization vessel, the inner walls of which and other surfaces coming into contact with the monomer or monomers are coated with one or more specifically selected inorganic or organic compounds having a solubility greater than 0.5 g in 100 g of water at 25°C and a boiling point higher than 60°C. This bulk polymerization method serves to greatly reduce the deposition of polymer scale on the vessel walls and other surfaces, while the polymer scale depo- sited can be readily separated and removed by merely washing with pressure water or blowing with a gas jet, and high quality poly- mer can be produced.

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