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

    Sulfonated nitrophenols as polymerization inhibitors
    4.
    发明授权
    Sulfonated nitrophenols as polymerization inhibitors 失效
    磺化硝基酚作为聚合抑制剂

    公开(公告)号:US07691952B2

    公开(公告)日:2010-04-06

    申请号:US11172168

    申请日:2005-06-29

    IPC分类号: C08F2/38 C08K3/00

    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下式的磺化硝基苯酚的抑制剂:其中:R1,R2和R3 独立地选自氢,烷基,NO 2和SO 3 H,条件是R 1,R 2和R 3中的至少一个是NO 2,并且R 1,R 2和R 3中的至少一个是SO 3 H。 在一个优选的实施方案中,还加入至少一种选自硝酰基化合物,亚硝基苯胺,硝基苯酚,胺及其混合物的另外的抑制剂。

    Inhibition of polymerization of unsaturated monomers
    5.
    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。

    Inhibition of polymerization of unsaturated monomers
    7.
    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:US06899806B2

    公开(公告)日:2005-05-31

    申请号:US10703592

    申请日:2003-11-10

    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) at least one first inhibitor selected from the group consisting of C-nitrosoaniline compounds; andB) at least one second inhibitor selected from the group consisting of quinone alkides, nitroaromatic compounds, hydroxylamine compounds, phenylenediamine compounds, quinone compounds, and hydroquinone compounds. Also disclosed is a composition of matter comprising:A) at least one member selected from the group consisting of C-nitrosoaniline compounds; andB) at least one member selected from the group consisting of quinone alkides, nitroaromatic compounds, hydroxylamine compounds, phenylenediamine compounds, quinone compounds, and hydroquinone compounds.

    摘要翻译: 本文公开了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:A)至少一种选自C-亚硝基苯胺化合物的第一抑制剂; 和B)选自由醌类,硝基芳族化合物,羟胺化合物,苯二胺化合物,醌化合物和氢醌化合物组成的组中的至少一种第二抑制剂。 还公开了一种物质组合物,其包含:A)至少一种选自C-亚硝基苯胺化合物; 和B)选自由醌类,硝基芳族化合物,羟胺化合物,苯二胺化合物,醌化合物和氢醌化合物组成的组中的至少一种。