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    Inhibition of pulp and paper yellowing using hydroxylamines and other coadditives
    1.
    发明授权
    Inhibition of pulp and paper yellowing using hydroxylamines and other coadditives 失效
    使用羟胺和其他共添加剂抑制纸浆和纸张变黄

    公开(公告)号：US06599326B1

    公开(公告)日：2003-07-29

    申请号：US09481665

    申请日：2000-01-12

    申请人： Raymond Seltzer ,  David Devore ,  Glen T. Cunkle ,  Cyril Heitner ,  John A. Schmidt ,  Peter F. McGarry ,  Jean-Pierre Wolf ,  Randall B. Nelson

    发明人： Raymond Seltzer ,  David Devore ,  Glen T. Cunkle ,  Cyril Heitner ,  John A. Schmidt ,  Peter F. McGarry ,  Jean-Pierre Wolf ,  Randall B. Nelson

    IPC分类号： D06L300

    CPC分类号： D21H21/143 ,  D21C9/005 ,  D21H17/07

    摘要： Chemical pulps or papers, especially kraft pulps or papers, which may still contain traces of lignin, have enhanced resistance to yellowing when they contain an effective stabilizing amount of a N,N-dialkylhydroxylamine, an ester, amide or thio substituted N,N-dialkylhydroxylamine or N,N-dibenzylhydroxylamine or an amminium salt thereof. This performance is often further enhanced by the presence of one or more coadditives selected from the group consisting of the UV absorbers, the polymeric inhibitors, the nitrones, the fluorescent whitening agents and metal chelating agents. Combinations of hydroxylamines or their salts, benzotriazole or benzophenone UV absorbers and a metal chelating agent are particularly effective. N,N-Diethylhydroxylamine and N,N-dibenzylhydroxylamine and their acid salts are surprisingly effective for this purpose.

    摘要翻译： 当含有有效稳定量的N，N-二烷基羟胺，酯，酰胺或硫代取代的N，N-二甲基甲酰胺时，化学纸浆或纸，尤其是还含有痕量木质素的硫酸盐纸浆或纸，具有增强的黄变性， 二烷基羟胺或N，N-二苄基羟胺或其铵盐。 通过存在一种或多种选自紫外线吸收剂，聚合物抑制剂，硝酸盐，荧光增白剂和金属螯合剂的共添加剂，这种性能通常进一步增强。 羟胺或其盐，苯并三唑或二苯甲酮紫外线吸收剂和金属螯合剂的组合是特别有效的。 N，N-二乙基羟胺和N，N-二苄基羟胺及其酸式盐对于此目的是令人惊奇的有效的。

    Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives
    2.
    发明授权
    Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives 失效
    使用硝基氧，羟胺和其他共添加剂抑制纸浆和纸张泛黄

    公开(公告)号：US06447644B1

    公开(公告)日：2002-09-10

    申请号：US09974382

    申请日：2001-10-10

    申请人： Raymond R. Seltzer ,  Jean-Pierre Wolf ,  Cyril Heitner ,  John A. Schmidt ,  Peter F. McGarry ,  Glen T. Cunkle ,  Randall B. Nelson

    发明人： Raymond R. Seltzer ,  Jean-Pierre Wolf ,  Cyril Heitner ,  John A. Schmidt ,  Peter F. McGarry ,  Glen T. Cunkle ,  Randall B. Nelson

    IPC分类号： D21F1100

    CPC分类号： C07D405/12 ,  C07D211/94 ,  C08K5/3435 ,  D21C9/005 ,  D21H21/143 ,  C08L97/00

    摘要： Pulps or papers, especially chemimechanical or thermomechanical pulps or papers, which still contain lignin, have enhanced resistance to yellowing when they contain an effective stabilizing amount of a hindered amine compound which preferably is a nitroxide, a hydroxylamine or an ammonium salt thereof. This performance is often further enhanced by the presence of one or more coadditives selected from the group consisting of the UV absorbers, the polymeric inhibitors, the nitrones, the fluorescent whitening agents, metal chelating agents, sulfur containing stabilizers, metal salts and diene compounds. Combinations of nitroxides, hydroxylamines or their salts, benzotriazole or benzophenone UV absorbers and a metal chelating agent are particularly effective. Selected derivatives of 1-oxyl-2,2,6,6-tetramethylpiperidin-4-ol and selected hydroxylamine salts are novel compounds and are surprisingly effective for this purpose.

    摘要翻译： 当含有有效稳定量的受阻胺化合物时，仍然含有木质素的纸浆或纸，特别是化学机械或热机械纸或纸，具有增强的黄变性，优选为氮氧化物，羟胺或其铵盐。 通过存在一种或多种选自紫外线吸收剂，聚合物抑制剂，硝酮，荧光增白剂，金属螯合剂，含硫稳定剂，金属盐和二烯化合物的共添加剂，这种性能通常进一步增强。 硝基氧，羟胺或其盐，苯并三唑或二苯甲酮紫外线吸收剂和金属螯合剂的组合是特别有效的。 1-氧基-2,2,6,6-四甲基哌啶-4-醇和选择的羟胺盐的选择性衍生物是新化合物，并且对于该目的而言是惊人的有效的。

    Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives
    3.
    发明授权
    Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives 失效
    使用硝基氧，羟胺和其他共添加剂抑制纸浆和纸张泛黄

    公开(公告)号：US06254724B1

    公开(公告)日：2001-07-03

    申请号：US09119567

    申请日：1998-07-20

    申请人： Raymond R. Seltzer ,  Jean-Pierre Wolf ,  Cyril Heitner ,  John A. Schmidt ,  Peter F. McGarry ,  Glen T. Cunkle ,  Randall B. Nelson

    发明人： Raymond R. Seltzer ,  Jean-Pierre Wolf ,  Cyril Heitner ,  John A. Schmidt ,  Peter F. McGarry ,  Glen T. Cunkle ,  Randall B. Nelson

    IPC分类号： D21C712

    CPC分类号： C07D405/12 ,  C07D211/94 ,  C08K5/3435 ,  D21C9/005 ,  D21H21/143 ,  C08L97/00

    摘要： Pulps or papers, especially chemimechanical or thermomechanical pulps or papers, which still contain lignin, have enhanced resistance to yellowing when they contain an effective stabilizing amount of a hindered amine compound which preferably is a nitroxide, a hydroxylamine or an ammonium salt thereof. This performance is often further enhanced by the presence of one or more coadditives selected from the group consisting of the UV absorbers, the polymeric inhibitors, the nitrones, the fluorescent whitening agents, metal chelating agents, sulfur containing stabilizers, metal salts and diene compounds. Combinations of nitroxides, hydroxylamines or their salts, benzotriazole or benzophenone UV absorbers and a metal chelating agent are particularly effective. Selected derivatives of 1-oxyl-2,2,6,6-tetramethyl-piperidin-4-ol and selected hydroxylamine salts are novel compounds and are surprisingly effective for this purpose.

    摘要翻译： 当含有有效稳定量的受阻胺化合物时，仍然含有木质素的纸浆或纸，特别是化学机械或热机械纸或纸，具有增强的黄变性，优选为氮氧化物，羟胺或其铵盐。 通过存在一种或多种选自紫外线吸收剂，聚合物抑制剂，硝酮，荧光增白剂，金属螯合剂，含硫稳定剂，金属盐和二烯化合物的共添加剂，这种性能通常进一步增强。 硝基氧，羟胺或其盐，苯并三唑或二苯甲酮紫外线吸收剂和金属螯合剂的组合是特别有效的。 1-氧基-2,2,6,6-四甲基 - 哌啶-4-醇和选择的羟胺盐的选择的衍生物是新化合物，并且对于该目的而言是惊人的有效的。

    Chlorohydrin and cationic compounds having high affinity for pulp or paper
    9.
    发明授权
    Chlorohydrin and cationic compounds having high affinity for pulp or paper 失效
    对纸浆或纸具有高亲和力的氯醇和阳离子化合物

    公开(公告)号：US07776182B2

    公开(公告)日：2010-08-17

    申请号：US11983366

    申请日：2007-11-08

    申请人： Glen T. Cunkle ,  David Devore ,  Thomas F. Thompson

    发明人： Glen T. Cunkle ,  David Devore ,  Thomas F. Thompson

    IPC分类号： C07D211/94 ,  D21H21/14 ,  D21H17/07

    CPC分类号： C04B35/632 ,  C07D211/94 ,  C07D401/04 ,  C07D401/12 ,  C07D401/14 ,  C07D471/10 ,  C08K5/3435 ,  D21H21/143 ,  C08L97/00

    摘要： Selected chlorohydrin and cationic compounds containing nitroxide or hydroxylamine moieties are effective in stabilizing pulp or paper, especially pulp or paper containing lignin, against yellowing and discoloration due to the adverse effects of light. These compounds are added at various points in the paper-making process, especially at the wet ends, making the need for water soluble or water dispersible materials having high affinity for pulp or paper essential. This performance is often further enhanced by the presence of one or more coadditives selected from the group consisting of the UV absorbers, the polymeric inhibitors, the nitrones, the fluorescent whitening agents and metal chelating agents. Combinations of hydroxylamines or their salts, benzotriazole or benzophenone UV absorbers and a metal chelating agent are particularly effective.

    摘要翻译： 含有氮氧自由基或羟胺部分的选择性氯代醇和阳离子化合物在稳定纸浆或纸，特别是含有木质素的纸浆或纸张时，由于光的不利影响而防止黄变和变色，是有效的。 这些化合物在造纸过程中的各个点加入，特别是在湿端，因此需要对纸浆或纸张具有高亲和力的水溶性或水分散性材料。 通过存在选自紫外线吸收剂，聚合物抑制剂，硝酮，荧光增白剂和金属螯合剂的一种或多种共添加剂，这种性能通常进一步增强。 羟胺或其盐，苯并三唑或二苯甲酮紫外线吸收剂和金属螯合剂的组合是特别有效的。

    Chlorohydrin and cationic compounds having high affinity for pulp or paper
    10.
    发明授权
    Chlorohydrin and cationic compounds having high affinity for pulp or paper 失效
    对纸浆或纸具有高亲和力的氯醇和阳离子化合物

    公开(公告)号：US07312332B2

    公开(公告)日：2007-12-25

    申请号：US10978673

    申请日：2004-11-01

    申请人： Glen T. Cunkle ,  David Devore ,  Thomas F. Thompson

    发明人： Glen T. Cunkle ,  David Devore ,  Thomas F. Thompson

    IPC分类号： C07D471/10 ,  C07D471/02

    CPC分类号： C04B35/632 ,  C07D211/94 ,  C07D401/04 ,  C07D401/12 ,  C07D401/14 ,  C07D471/10 ,  C08K5/3435 ,  D21H21/143 ,  C08L97/00

    摘要： Selected chlorohydrin and cationic compounds containing nitroxide or hydroxylamine moieties are effective in stabilizing pulp or paper, especially pulp or paper containing lignin, against yellowing and discoloration due to the adverse effects of light. These compounds are added at various points in the paper-making process, especially at the wet ends, making the need for water soluble or water dispersible materials having high affinity for pulp or paper essential. This performance is often further enhanced by the presence of one or more coadditives selected from the group consisting of the UV absorbers, the polymeric inhibitors, the nitrones, the fluorescent whitening agents and metal chelating agents. Combinations of hydroxylamines or their salts, benzotriazole or benzophenone UV absorbers and a metal chelating agent are particularly effective.

    摘要翻译： 含有氮氧自由基或羟胺部分的选择性氯代醇和阳离子化合物在稳定纸浆或纸，特别是含有木质素的纸浆或纸张时，由于光的不利影响而防止黄变和变色，是有效的。 这些化合物在造纸过程中的各个点加入，特别是在湿端，因此需要对纸浆或纸张具有高亲和力的水溶性或水分散性材料。 通过存在一种或多种选自紫外线吸收剂，聚合物抑制剂，硝酮，荧光增白剂和金属螯合剂的共添加剂，这种性能通常进一步增强。 羟胺或其盐，苯并三唑或二苯甲酮紫外线吸收剂和金属螯合剂的组合是特别有效的。