C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 7/20 (2006.01)
Patent
CA 2589038
Disclosed herein is a method for inhibiting and retarding the premature polymerization and the polymer growth of vinyl aromatic monomers wherein the method comprises adding to said monomers an effective amount of an inhibitor and retarder blend comprising: (A) at least one aromatic sulfonic acid; (B) at least one amine; (C) at least one nitrophenol; and (D) at least one member of the group consisting of nitroxy radical-containing compounds and nitrosoanilines. 15
L'invention concerne un procédé qui permet d'inhiber et de retarder la polymérisation prématurée et la croissance polymérique de monomères aromatiques de vinyle, lequel procédé consiste à ajouter auxdits monomères une quantité efficace d'un mélange d'un inhibiteur et d'un retardateur comprenant: (A) au moins un acide sulfonique aromatique; (B) au moins une amine; (C) au moins un nitrophénol; et (D) au moins un élément du groupe formé de composés contenant un radical nitroxy et de nitrosoanilines.
Abruscato Gerald J.
Benage Brigitte
Fabian Jesus R.
Kosover Vilen
Lippai Istvan
Chemtura Corporation
Gowling Lafleur Henderson Llp
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