公开(公告)号：US20030205452A1

公开(公告)日：2003-11-06

申请号：US10139524

申请日：2002-05-06

Applicant: Fina Technology, Inc.

Inventor： James T. Merrill

IPC: B01D003/34

CPC classification number: C07C7/20 ,  C08F2/40 ,  C08F112/08 ,  C07C15/46 ,  C07C15/44 ,  C08F2/38 ,  C08F2/42

Abstract: Disclosed is the observation that 7-aryl-quinone methides and 4-tert-butylcatechol, when used in combination in a vinyl aromatic monomer to inhibit polymerization, do not inhibit polymerization to the same extent as each would if used separately. Stated another way, a phenomenon has been observed that when these two compounds are used together, they can, to a large extent, render each other unable to inhibit polymerization in a vinyl aromatic monomer. Also disclosed are methods of preventing adverse results of this interaction when undesired and a method of using this interaction to prepare a reactive vinyl aromatic monomer having a concentration of 4-tert-butylcatechol that would otherwise inhibit polymerization. The invention is disclosed to be useful with the production and storage of any vinyl aromatic monomer and is disclosed to be particularly useful with the production and storage of styrene monomer.

Abstract translation: 披露了7-芳基 - 醌甲基化物和4-叔丁基邻苯二酚在乙烯基芳族单体中组合用于抑制聚合时不抑制聚合反应的程度与分别使用的程度相同。 换句话说，已经观察到当这两种化合物一起使用时，它们可以在很大程度上彼此不能抑制乙烯基芳族单体中的聚合。 还公开了防止这种相互作用的不利结果的方法，以及使用该相互作用制备具有4-叔丁基儿茶酚浓度的反应性乙烯基芳族单体的方法，否则其将抑制聚合。 公开了本发明可用于任何乙烯基芳族单体的生产和储存，并且被公开用于苯乙烯单体的生产和储存特别有用。