C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
400/2051, 402/30
C07D 277/82 (2006.01) C08F 2/00 (2006.01) C08F 114/06 (2006.01) C08F 214/06 (2006.01) C08F 259/04 (2006.01) C23F 15/00 (2006.01)
Patent
CA 1113942
ABSTRACT OF THE DISCLOSURE The present invention provides a process for the manufacture of vinyl chloride polymers by polymerization of the monomer or monomer mixture in aqueous dispersion in the presence of radical-forming catalysts and optionally suspen- sion stabilizers, emulsifiers and further polymerization auxiliaries, which comprises carrying out the polymerization in a reactor the inner walls of which and other parts were polymer deposits may form are coated partially or entirely with a coating containing determined compounds of the formula Image In accordance with this invention, a substantial suppression of polymer deposit formation is achieved especially in the case of the vinyl chloride copolymers.
318497
Brandrup Johannes
Fischer Edgar
Weinlich Jurgen
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Hoechst Aktiengesellschaft
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