C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/304, 402/396
C08F 14/06 (2006.01) C08F 2/00 (2006.01)
Patent
CA 1085994
ABSTRACT OF THE DISCLOSURE Vinyl chloride monomer or a mixture thereof with a copolymerizable monomer or monomers is bulk-polymerized so that the deposition of polymer scale on the inner walls of the polymerization vessel and other surfaces in contact with the monomer or monomers can be greatly reduced by coating them with phosphoric esters, polyphosphoric esters or their alkali metal salts before the polymerization is commenced. Clean-up operations following each polymerization run are much simplified.
237921
Eguchi Yoshitsugu
Kurimoto Kazuhiko
Kuwata Satoshi
Ogawa Kinya
G. Ronald Bell & Associates
Shin-Etsu Chemical Co. Ltd.
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