Method of preventing polymer scale formation

Details Method of preventing polymer scale formation Method of preventing polymer scale formation

1993-01-05

1994-03-29

McMahon, Timothy M.

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

106 1405, 106 1442, 106 1443, 422241, 427230, 526 62, C08F 202

Patent

active

052982203

ABSTRACT:
This process is a method of preventing polymer scale formation in a polymerization vessel during the polymerization of a monomer having an ethylenically unsaturated double bond. The inner wall surface of a polymerization vessel is coated with a water-based coating solution containing (a) a water-soluble anionic dye and (b) at least water-insoluble cationic dye or water-insoluble nitrogen-containing organic compound, where the water-based coating solution has a pH of 7 or less. The coating solution is applied and then dried to form a coating.

REFERENCES:
patent: 3959235 (1976-05-01), Nishigaki et al.
patent: 4173696 (1979-11-01), Koyanagi et al.
patent: 4263421 (1981-04-01), Jones et al.
patent: 4757124 (1988-07-01), Koyanagi et al.
patent: 4933399 (1990-06-01), Shimizu et al.

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