Inhibiting polymerization of vinyl aromatic monomers

Chemistry of hydrocarbon compounds – Product blend – e.g. – composition – etc. – or blending process... – With nonhydrocarbon additive

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585 2, 585 3, 585 5, 585865, 585952, 544 35, 544 37, 203 9, C07C 718

Patent

active

044658826

ABSTRACT:
Vinyl aromatic compounds are stabilized against undesired polymerization by adding to the vinyl aromatic compounds small amounts of at least one N,N-diarylhydroxylamine and at least one N,N' dimer of phenothiazine or substituted phenothiazine.

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