Method for reducing polymer build-up in a polymerization reactor

Details Method for reducing polymer build-up in a polymerization reactor Method for reducing polymer build-up in a polymerization reactor

1992-05-08

1993-07-20

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Organic polymerization

422241, 526 62, 526 74, C08F 200

Patent

active

052290760

ABSTRACT:
The present invention relates to a process for substantially inhibiting polymer build-up on reactor surfaces during polymerization. The method generally comprises the application of a polyaniline coating composition to the reactor surfaces in contact with the reaction medium prior to charging the reactor and the carrying out of the polymerization reaction. The polyaniline coating composition broadly consists of about 0.01 to about 20% by weight of deprotonated polyaniline, such as polyaniline in the pernigraniline oxidation state, dissolved in an organic solvent carrier, such as dimethyl sulfoxide (DMSO), 1-methyl-2-pyrrolidinone (NMP), acetic acid, sulfuric acid, formic acid and tetrahydrofuran (THF).

REFERENCES:
patent: 4528336 (1985-07-01), Koyanagi et al.

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