| 摘要 |
The invention relates to substantially eliminating the polymer buildup on the internal surfaces of a polymerization reactor wherein a suspension polymerization system is employed in producing polymers from polymerizable ethylenically unsaturated monomers or vinyl monomers. The internal surfaces are coated with a heavy coating of an acidic coating material, such as a self-condensed polyhydric phenol, dissolved in an organic solvent, such as an alcohol, and then drying the coating prior to charging the reaction ingredients into the reactor. Multiple charges can be run without opening the reactor. By "heavy coating" is meant one that is substantially thicker, or heavier, than a thin, or monolayer, coating that is presently employed in the suspension polymerization art.
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