Method for preventing polymer scale deposition

Details Method for preventing polymer scale deposition Method for preventing polymer scale deposition

1993-08-26

1995-02-21

Henderson, Christopher

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

Synthetic resins

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

526200, C08F 220

Patent

active

053916530

ABSTRACT:
A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkaline solution containing a condensation product of (A) an aromatic diaminodicarboxylic acid compound, and (B) an organic compound containing two --COX groups, wherein X is halogen. This agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Such a vessel is effective in preventing polymer scale deposition, not only on the areas in the liquid phase but also near the interface between the liquid phase and the gas phase in the vessel, and useful in producing a polymer that shows very few fish eyes and good whiteness when formed into sheets or the like.

REFERENCES:
patent: 4757124 (1988-07-01), Koyanagi

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