公开(公告)号：US09932709B2

公开(公告)日：2018-04-03

申请号：US13839091

申请日：2013-03-15

Applicant: Ecolab USA Inc.

Inventor： Prasad Y. Duggirala ,  Sergey M. Shevchenko

IPC: D21H17/09 ,  D21H17/10 ,  D21H17/66 ,  D21H17/15 ,  D21H21/28 ,  D21C9/10 ,  D21H21/14 ,  D21H21/30

CPC classification number: D21H17/09 ,  D21C9/1036 ,  D21C9/1042 ,  D21C9/1084 ,  D21H17/10 ,  D21H17/15 ,  D21H17/66 ,  D21H21/143 ,  D21H21/28 ,  D21H21/30

Abstract: Compositions and methods that preserve and enhance the brightness of pulp, and also improve the color of pulp or paper, when applied during different stages of a papermaking process, are disclosed. The compositions and methods maintain or enhance brightness, prevent yellowing, and enhance the performance of paper products. The compositions can include a mixture of reducing agents and can also include optical brighteners, chelants, polycarboxylates, or other additives. The mixture of reducing agents can include a borohydride, such as sodium borohydride, and any other reducing agent, such as a sulfite or bisulfite.

公开(公告)号：US20020124980A1

公开(公告)日：2002-09-12

申请号：US09974382

申请日：2001-10-10

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

IPC: D21H021/00 ,  D21H017/07 ,  D21H021/38

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US3033720A

公开(公告)日：1962-05-08

申请号：US73214858

申请日：1958-05-01

Applicant: CIBA LTD

Inventor： EMIL SIEGRIST ADOLF ,  MAX DUENNENBERGER

IPC: B32B27/00 ,  C07D307/46 ,  D21H17/49 ,  D21H21/14 ,  D21H27/26

CPC classification number: D21H27/26 ,  B32B27/00 ,  C07D307/46 ,  D21H17/49 ,  D21H21/143 ,  Y10T428/31964

公开(公告)号：US2580461A

公开(公告)日：1952-01-01

申请号：US77089547

申请日：1947-08-27

Applicant: SULPHITE PRODUCTS CORP

Inventor： PEARL IRWIN A

IPC: C08K5/134 ,  D21H21/14

CPC classification number: D21H21/143 ,  C08K5/1345 ,  Y10T428/31971

公开(公告)号：US2222532A

公开(公告)日：1940-11-19

申请号：US71472834

申请日：1934-03-08

Applicant: WALTHER H DUISBERG

Inventor： JOHN EGGERT ,  BRUNO WENDT

IPC: C08J7/06 ,  C08K5/42 ,  D21H21/14

CPC classification number: C08J7/065 ,  C08J2301/00 ,  C08K5/42 ,  D21H21/143 ,  C08L1/06

公开(公告)号：US20070128460A1

公开(公告)日：2007-06-07

申请号：US11295904

申请日：2005-12-07

Applicant: Gerald Miller ,  Jorgen Forsbacka ,  Arne Gottberg

Inventor： Gerald Miller ,  Jorgen Forsbacka ,  Arne Gottberg

IPC: B32B27/00 ,  C08L29/04

CPC classification number: C09D129/04 ,  B41M5/52 ,  B41M5/5218 ,  B41M5/5227 ,  B41M5/5236 ,  B41M5/5254 ,  C08K3/013 ,  C08K5/0041 ,  C08K13/02 ,  C08L29/04 ,  C08L101/00 ,  D21H21/143 ,  Y10T428/31855 ,  C08L2666/02

Abstract: Coating compositions, methods of applying the coating compositions, and articles incorporating the coating compositions are provided. The coating compositions are useful for coating a variety of substrates to improve the appearance and printability of the substrates. The coating compositions incorporate pigment system, a binder, and an optical brightener. The binder incorporates a polyvinyl alcohol polymer. The coating compositions exhibit whitening and reversion characteristics superior to coating compositions incorporating conventional components while providing cost advantages over conventional coatings.

Abstract translation: 提供涂料组合物，涂布组合物的方法，以及掺入涂料组合物的制品。 涂料组合物可用于涂覆各种基材以改善基材的外观和可印刷性。 涂料组合物包含颜料体系，粘合剂和荧光增白剂。 粘合剂包含聚乙烯醇聚合物。 涂料组合物表现出优于具有常规组分的涂料组合物的增白和回复特性，同时提供了比常规涂料的成本优势。

公开(公告)号：US06998015B2

公开(公告)日：2006-02-14

申请号：US09994075

申请日：2001-11-27

Applicant: Xujun Hua ,  Makhlouf Laleg

Inventor： Xujun Hua ,  Makhlouf Laleg

IPC: D21C3/04 ,  D21C3/06 ,  D21C3/12 ,  D21H13/48 ,  D21H11/06

CPC classification number: D21H21/143 ,  D21H17/65 ,  D21H17/675 ,  D21H21/32

Abstract: A method is disclosed for reducing or inhibiting alkaline darkening of mechanical pulp caused by the presence of calcium carbonate filler during production; the method comprises adding a sulfite, or sulfur-containing reducing agent, especially a sulfite to the mechanical pulp and the filler; the method is usefully applied in the production of mechanical pulp and paper in which calcium carbonate is used as a filler and also in the production of paper at neutral or mildly alkaline conditions.

公开(公告)号：US20050092452A1

公开(公告)日：2005-05-05

申请号：US10978673

申请日：2004-11-01

Applicant: Glen Cunkle ,  David Devore ,  Thomas Thompson

Inventor： Glen Cunkle ,  David Devore ,  Thomas Thompson

IPC: C07D211/94 ,  C07D401/04 ,  C07D401/12 ,  C07D401/14 ,  C07D471/10 ,  C08K5/3435 ,  D21H21/14 ,  D21H21/30

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06599326B1

公开(公告)日：2003-07-29

申请号：US09481665

申请日：2000-01-12

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

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

IPC: D06L300

CPC classification number: D21H21/143 ,  D21C9/005 ,  D21H17/07

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20020088574A1

公开(公告)日：2002-07-11

申请号：US09234253

申请日：1999-01-20

Inventor： RAYMOND SELTZER ,  DAVID DEVORE ,  GLEN T. CUNKLE ,  CYRIL HEITNER ,  JOHN A. SCHMIDT ,  PETER F. MCGARRY ,  JEAN-PIERRE WOLF ,  RANDALL B. NELSON

IPC: D21C003/20 ,  C07D211/36 ,  C07D211/40 ,  C07D211/30 ,  C07D211/54 ,  C07D211/32

CPC classification number: D21C9/005 ,  D21H17/07 ,  D21H21/143

Abstract: 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 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.

Abstract translation: 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-二烷基羟胺或其它还含有木质素的纸浆或纸，特别是化学机械或热机械纸浆或纸时，它们具有增强的黄变性 N，N-二苄基羟胺或其铵盐。 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。 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。