Process for reducing scale formation in vinyl polymerization rea

Details Process for reducing scale formation in vinyl polymerization rea Process for reducing scale formation in vinyl polymerization rea

1991-11-20

1993-03-16

Bell, Janyce

Coating processes

Interior of hollow article coating

Coating by vapor, gas, mist, or smoke

422131, 422241, 427230, 427233, 427239, 427314, 427315, 427318, 526 62, 526 74, 526344, B01J 120, B05D 722, C08F 200

Patent

active

051943018

ABSTRACT:
The present invention refers to a process for inhibiting the formation of polymer buildup on the inner surfaces of a vinyl polymerization reactor by coating such surfaces with an alkaline solution of a linear or branched low molecular weight compound belonging to the poly(hydroxybenzyl) and poly(hydroxybenzylether) families and including their copolymers or blends. This process effectively reduces the adherence of polymeric material to the inner parts of the reaction vessel wherein substituted ethylene monomers are polymerized.

REFERENCES:
patent: 4080173 (1978-03-01), Cohen
patent: 4200712 (1980-04-01), Cohen
patent: 4228130 (1980-10-01), Cohen
patent: 4256864 (1981-03-01), Cohen
patent: 4263421 (1981-04-01), Jones
patent: 4579864 (1986-04-01), Dorsch et al.
patent: 4622245 (1986-11-01), Shimizu et al.

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