C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/304, 402/396
C08F 2/00 (2006.01) B01J 19/02 (2006.01) C08F 14/06 (2006.01) C08F 14/16 (2006.01) C08F 22/18 (2006.01) C08F 114/06 (2006.01) C08F 114/16 (2006.01) C08F 214/06 (2006.01) C08F 214/16 (2006.01) C08F 222/18 (2006.01) C08G 63/682 (2006.01) C08G 69/42 (2006.01)
Patent
CA 1181899
ABSTRACT OF THE DISCLOSURE The present invention relates to a method for the polymeriz ? ?n of vinylchloride. In particular, the present invention relates to a method for the prevention of adhesion of the polymer cake to inner surfaces of the polymerization installation. This invention is characterized by the spread- coating of a phenol-aldehyde condensation product, especially of the resole type on inner walls of the polymerization vessel and surfaces of the parts of associated devices which are in contact with monomers during the polymerization. According to the present invention, a greater prevention of the adhesion of polymer cake is obtained, and the adhesion weakened, without any problems such as retarding the reaction rate of polymeriza- tion or deterioration of product quality.
321271
Marks & Clerk
Mitsui Toatsu Chemicals Inc.
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