Sulfonated phenols with nitrophenols as polymerization inhibitors
    1.
    发明申请
    Sulfonated phenols with nitrophenols as polymerization inhibitors 审中-公开
    磺化酚与硝基酚作为聚合抑制剂

    公开(公告)号:US20060069219A1

    公开(公告)日:2006-03-30

    申请号:US11172517

    申请日:2005-06-29

    IPC分类号: C08F2/38

    CPC分类号: C07C309/42 C07C7/20 C07C11/02

    摘要: Disclosed herein is a method for inhibiting the premature polymerization and the polymer growth of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of a combination of (A) at least one inhibitor that is a sulfonated phenol of the formula: wherein (1) R2 is selected from the group consisting of hydrogen and hydrocarbyl; and (2) R1 and R3 are independently selected from the group consisting of hydrogen and SO3H, provided that at least one of R1 and R3 is SO3H; (B) at least one inhibitor that is a nitrophenol; and, optionally, (C) an inhibitor selected from the group consisting of nitroxyl compounds and nitrosoanilines; and (D) an amine.

    摘要翻译: 本文公开了一种抑制烯属不饱和单体的过早聚合和聚合物生长的方法,包括向所述单体中加入有效量的组合

    Sulfonated nitrophenols as polymerization inhibitors
    3.
    发明申请
    Sulfonated nitrophenols as polymerization inhibitors 失效
    磺化硝基酚作为聚合抑制剂

    公开(公告)号:US20060069218A1

    公开(公告)日:2006-03-30

    申请号:US11172168

    申请日:2005-06-29

    IPC分类号: C08F2/38

    CPC分类号: C07C7/20 C08F2/42 C08K5/32

    摘要: Disclosed herein is a method for inhibiting and retarding the premature polymerization and the polymer growth of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one inhibitor that is a sulfonated nitrophenol of the formula: wherein: R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, NO2, and SO3H, provided that at least one of R1, R2, and R3 is NO2 and at least one of R1, R2, and R3 is SO3H. In a preferred embodiment, at least one additional inhibitor selected from the group consisting of nitroxyl compounds, nitrosoanilines, nitrophenols, amines, and mixtures thereof is also added.

    摘要翻译: 本文公开了一种抑制和延迟烯属不饱和单体的过早聚合和聚合物生长的方法,包括向所述单体中加入有效量的至少一种抑制剂,其为下式的磺化硝基苯酚:

    Inhibition of polymerization of ethylenically unsaturated monomers
    4.
    发明授权
    Inhibition of polymerization of ethylenically unsaturated monomers 有权
    抑制烯属不饱和单体的聚合

    公开(公告)号:US06300533B1

    公开(公告)日:2001-10-09

    申请号:US09375033

    申请日:1999-08-16

    IPC分类号: C07C720

    CPC分类号: C09K15/20

    摘要: Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of an inhibitor having the structural formula: wherein R1 and R4 are independently selected from the group consisting of hydrogen, alkyl, and heteroatom-substituted alkyl and R2 and R3 are independently selected from the group consisting of alkyl and heteroatom-substituted alkyl and the  portion represents the atoms necessary to form a five-, six-, or seven-membered heterocyclic ring, at least one of said atoms being a carbon atom substituted with a primary, secondary, or tertiary amino group.

    摘要翻译: 本文公开了一种抑制烯键式不饱和单体的过早聚合的方法,包括向所述单体中加入有效量的具有以下结构式的抑制剂:其中R 1和R 4独立地选自氢,烷基和杂原子取代的 烷基和R 2和R 3独立地选自烷基和杂原子取代的烷基,并且该部分表示形成五,六或七元杂环所必需的原子,所述原子中的至少一个为 被伯,仲或叔氨基取代的碳原子。

    Means for controlling the exothermic reaction of styrenic monomers with sulfonic acids
    5.
    发明申请
    Means for controlling the exothermic reaction of styrenic monomers with sulfonic acids 有权
    控制苯乙烯单体与磺酸的放热反应的方法

    公开(公告)号:US20060178489A1

    公开(公告)日:2006-08-10

    申请号:US11345194

    申请日:2006-01-31

    IPC分类号: C08F2/38

    CPC分类号: C07B63/04 C07C7/20 C07C15/46

    摘要: A method for inhibiting the premature polymerization of styrenic monomers is disclosed wherein the method comprises adding to said monomers a combination of: (A) at least one inhibitor that is a sulfonic acid compound in a concentration sufficient to initiate cationic polymerization of said styrenic monomers at any point of the manufacturing or purification process and cause a resulting temperature increase; and (B) at least one amine in a concentration sufficient to reduce said cationic polymerization and said temperature increase; whereby an uncontrolled exothermic reaction between said sulfonic acid compound and said styrenic monomers will be prevented.

    摘要翻译: 公开了抑制苯乙烯单体过早聚合的方法,其中所述方法包括向所述单体中加入以下组合:(A)至少一种抑制剂,其为足以引发所述苯乙烯单体的阳离子聚合的磺酸化合物 任何一点的制造或净化过程,并导致温度升高; 和(B)至少一种浓度足以减少所述阳离子聚合和所述温度升高的胺; 由此可以防止所述磺酸化合物与所述苯乙烯类单体之间的不受控制的放热反应。