Inhibition of polymerization of ethylenically unsaturated monomers
    1.
    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。

    Inhibition of polymerization of unsaturated monomers
    2.
    发明授权
    Inhibition of polymerization of unsaturated monomers 失效
    抑制不饱和单体的聚合

    公开(公告)号:US06660181B2

    公开(公告)日:2003-12-09

    申请号:US10193603

    申请日:2002-07-12

    IPC分类号: C09K300

    CPC分类号: C07B63/04 C07C7/20 C07D211/94

    摘要: A method is disclosed for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers a polymerization inhibiting amount of a mixture comprising A) a first inhibitor comprising 4-amino-2,2,6,6-tetramethylpiperidinyloxy, wherein said amino group is a primary, secondary, or tertiary amino group; and B) at least one other inhibitor having the structural formula: wherein: R1 and R4 are independently selected from the group consisting of hydrogen, alkyl, and heteroatom-substituted alkyl; R2 and R3 are independently selected from the group consisting of alkyl and heteroatom-substituted alkyl; X1 and X2 (1) are independently selected alkyl groups of 1 to 15 carbon atoms or (2) taken together, form a ring structure with the nitrogen.

    摘要翻译: 公开了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聚合抑制量的混合物,所述混合物包含A)包含4-氨基-2,2,6,6-四甲基哌啶氧基的第一抑制剂,其中所述氨基为 伯,仲或叔氨基; 和B)至少一种具有以下结构式的其它抑制剂:其中:R 1和R 4独立地选自氢,烷基和杂原子取代的烷基; R 2和R 3独立地选自烷基和杂原子 - 取代的烷基; X 1和X 2(1)独立地选自1至15个碳原子的烷基或(2)组合在一起形成与氮的环结构。

    Means for controlling the exothermic reaction of styrenic monomers with sulfonic acids
    3.
    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。

    Means for controlling the exothermic reaction of styrenic monomers with sulfonic acids
    4.
    发明授权
    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:US08013083B2

    公开(公告)日:2011-09-06

    申请号:US11345194

    申请日:2006-01-31

    IPC分类号: C08F2/38 C08F12/02

    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。

    Inhibition of polymerization of unsaturated monomers
    6.
    发明授权
    Inhibition of polymerization of unsaturated monomers 失效
    抑制不饱和单体的聚合

    公开(公告)号:US06653414B2

    公开(公告)日:2003-11-25

    申请号:US09916580

    申请日:2001-07-30

    IPC分类号: C08F238

    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 a mixture comprising: A) at least one stable hindered nitroxyl compound 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 X1 and X2 (1) are independently selected from the group consisting of halogen, cyano, COOR7, —S—COR7, —OCOR7, (wherein R7 is alkyl or aryl), amido, —S—C6H5, carbonyl, alkenyl, or alkyl of 1 to 15 carbon atoms, or (2) taken together, form a ring structure with the nitrogen; and B) at least one inhibitor selected from the group consisting of ortho-quinone, ortho-hydroquinone, para-quinone, para-hydroquinone, and derivatives of the foregoing.

    摘要翻译: 本文公开了一种抑制烯属不饱和单体过早聚合的方法,包括向所述单体中加入有效量的混合物,所述混合物包含:A)至少一种具有以下结构式的稳定的受阻硝酰基化合物:其中R1和R4独立地选自 由氢,烷基和杂原子取代的烷基组成的基团,且R 2和R 3独立地选自烷基和杂原子取代的烷基; 和X 1和X 2(1)独立地选自卤素,氰基,COOR 7,-S-COR 7,-OCOR 7,(其中R 7是烷基或芳基),酰氨基,-S-C 6 H 5,羰基,烯基或 1〜15个碳原子的烷基,或(2)一起与氮形成环结构; 和B)选自邻醌,邻 - 氢醌,对醌,对 - 氢醌和前述衍生物中的至少一种抑制剂。

    C-nitrosoaniline compounds and their blends as polymerization inhibitors
    9.
    发明授权
    C-nitrosoaniline compounds and their blends as polymerization inhibitors 失效
    C-亚硝基苯胺化合物及其共混物作为聚合抑制剂

    公开(公告)号:US06685823B2

    公开(公告)日:2004-02-03

    申请号:US10030991

    申请日:2002-01-16

    IPC分类号: C07C720

    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 at least one inhibitor selected from the group consisting of C-nitrosoaniline and quinone imine oxime compounds. Also disclosed is a composition of matter comprising: A) an ethylenically unsaturated monomer and B) an effective inhibiting amount, sufficient to prevent premature polymerization during distillation or purification of said ethylenically unsaturated monomer, of at least one inhibitor selected from the group consisting of C-nitrosoaniline and quinone imine oxime compounds used together with an effective amount of oxygen or air to enhance the inhibiting activity of said inhibitor.

    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至少一种选自C-亚硝基苯胺和醌亚胺肟化合物的抑制剂。 还公开了一种物质组合物,其包含:A)烯属不饱和单体和B)有效抑制量,足以防止在所述烯属不饱和单体的蒸馏或纯化过程中过早聚合至少一种选自C- 亚硝基苯胺和醌亚胺肟化合物与有效量的氧气或空气一起使用以增强所述抑制剂的抑制活性。