Coating solution for preventing adhesion of polymer scale and me

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in reactor of specified material – or in reactor...

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252 80, 252 82, 252180, 427230, 427384, 427239, 427327, 523464, 526 74, 5262181, 5262191, 5262193, 526191, 526201, 526204, 5263442, C08F 200, C08F 1606, C08F 1808, C08F 2042

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052410226

ABSTRACT:
The present invention relates to a coating solution for preventing adhesion of polymer scale and a method for preventing scale adhesion during preparation of polymers which can provide polymers having high quality without coloring thereof while preventing adhesion of polymer scale to a polymerizer when a monomer having an ethylenically unsaturated double bond is polymerized. A coating solution for preventing adhesion of polymer scale which comprises anaphthoquinone natural dyestuffs, anthraquinone natural dyestuffs, tannin natural dyestuffs, xanthone natural dyestuffs, flavonoid natural dyestuffs, or/and benzoquinone natural dyestuffs and a polyvinyl alcohol having a degree of saponification of not less than 70 mole % was applied on at least a part of a polymerizer which comes in contact with a monomer having an ethylenically unsaturated double bond and was dried to give a coating film during polymerization thereof.

REFERENCES:
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patent: 4152500 (1979-05-01), Foschi et al.
patent: 4267291 (1981-05-01), Jones et al.
patent: 4622245 (1986-11-01), Shimizu et al.
patent: 4757124 (1988-07-01), Koyanagi et al.
patent: 4758639 (1988-07-01), Koyanagi et al.

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