Polymerization co-inhibitors for vinyl aromatic compounds
    1.
    发明授权
    Polymerization co-inhibitors for vinyl aromatic compounds 失效
    乙烯基芳族化合物的聚合共抑制剂

    公开(公告)号:US4466904A

    公开(公告)日:1984-08-21

    申请号:US456876

    申请日:1983-01-10

    IPC分类号: C07C7/20 C08F2/38 C09K15/26

    摘要: A compound and a process for utilizing the compound to prevent the polymerization of vinyl aromatic compounds, such as styrene, during heating. The compound includes effective amounts of phenothiazine, 4-tert-butylcatechol and 2,6-dinitro-p-cresol respectively, as a polymerization inhibitor system in the presence of oxygen resulting in a less viscous polymer tar and in the effective inhibition of polymerization to temperatures as high as 150.degree. C.

    摘要翻译: 化合物和在加热期间利用该化合物防止乙烯基芳族化合物如苯乙烯聚合的方法。 该化合物分别包括有效量的吩噻嗪,4-叔丁基邻苯二酚和2,6-二硝基对甲酚作为聚合抑制剂体系,在氧气存在下导致粘度较低的聚合物焦油和有效抑制聚合反应 温度高达150℃