Method for preventing deposition of polymer scale and a coating

Details Method for preventing deposition of polymer scale and a coating Method for preventing deposition of polymer scale and a coating

1984-04-16

1985-09-03

Morgenstern, Norman

Coating processes

Interior of hollow article coating

427239, 427384, 526 62, 252181, B05D 722, C08F 200

Patent

active

045392307

ABSTRACT:
The invention provides a method for preventing deposition of polymer scale on the reactor walls in the polymerization of an ethylenically unsaturated monomer, in particular, by emulsion polymerization. The method comprises coating the reactor walls with a coating composition containing, as the essential components, (A) an organic compound having at least 5 conjugated .pi. bonds in a molecule, (B) a chelating agent and (C) a metal compound capable of producing metal ions having a coordination number of at least 2 which presumably forms a metallic chelate compound with the chelating agent contributing to the formation of a strongly adsorbed layer on the reactor walls. The coating composition may be further admixed with a silicic acid compound such as a colloidal silica.

REFERENCES:
patent: 4145496 (1979-03-01), Weimer et al.
patent: 4320215 (1982-03-01), Yonezawa et al.

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