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

1984-09-28

1985-09-17

Silverberg, Sam

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymerizing in reactor of specified material, or in reactor...

C08F 62, C08F 1402

Patent

active

045421951

ABSTRACT:
The invention provides an improved method for preventing polymer scale deposition on the reactor walls, for example, in the suspension polymerization of vinyl chloride by coating the walls prior to introduction of the polymerization mixture with a specific coating composition of which the essential ingredient is a combination of (a) a condensation product of an aromatic amine compound, e.g. aniline or a derivative thereof, and an aromatic nitro compound, e.g. nitrobenzene or a derivative thereof, and (b) a sulfonation product of a condensation product of an aromatic amine compound and an aromatic nitro compound in the form of a salt with an alkali metal or ammonium as dissolved in a solvent.

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