Method for preventing polymer scale deposition in the polymeriza

Details Method for preventing polymer scale deposition in the polymeriza Method for preventing polymer scale deposition in the polymeriza

1984-10-15

1986-11-11

Silverberg, Sam

Coating processes

Interior of hollow article coating

526 62, 427239, C08F 02

Patent

active

046222456

ABSTRACT:
The invention provides a novel method for preventing deposition of polymer scale on the walls of a polymerization reactor in the course of polymerization of various ethylenically unsaturated monomers such as the suspension polymerization of vinyl chloride in an aqueous medium. The method comprises coating the reactor walls with a coating solution containing (a) a polymeric compound having hydroxyl groups such as a polyvinyl alcohol and (b) a silicic acid compound such as water glass followed by drying of the coated surface and washing thereof with water.

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