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1. 发明申请

WO2004038091A1 LIGHT-STABLE AND PROCESS-STABLE LIGNOCELLULOSIC MATERIALS AND THEIR PRODUCTION 审中-公开
标题翻译：光稳定和过程稳定的纤维素材料及其生产
公开(公告)号：WO2004038091A1
公开(公告)日：2004-05-06
申请号：PCT/CA2003/001606
申请日：2003-10-21
申请人： PULP AND PAPER RESEARCH INSTITUTE OF CANADA , WILLIAMS, Trevor , HU, Thomas, Qiuxiong , PIKULIK, Ivan, Ignac
发明人： WILLIAMS, Trevor , HU, Thomas, Qiuxiong , PIKULIK, Ivan, Ignac
IPC分类号： D21C9/10
CPC分类号： C08H8/00 , C08G73/00 , C08G73/02 , C08G73/0226 , D21C9/10 , D21C9/1047 , D21C9/16 , D21C9/163
摘要： A novel method for the production of light-stable and process-stable lignocellulosic materials, in particular, the production of mechanical wood pulps with much improved light and process stability is described, as well as the resulting pulps of improved light and process stability and papers containing such pulps. The novel method involves the reaction of lignocellulosic materials such as bleached chemithermomechanical pulps (BCTMP) with (a) a water-soluble, fibre-reactive yellowing inhibitor possessing two or more secondary amino or ammonium (-NHR' or -HN + HR'), tertiary amino or ammonium (-NR'R" or -HN + R'R"), and/or quaternary ammonium (-N + R'R''R"') functional groups in an aqueous medium, or (b) a water-soluble, fibre-reactive hindered amine light stabilizer possessing said amino or ammonium functional groups in an alkaline peroxide bleaching medium or in an aqueous medium with a subsequent bleaching of the materials in an alkaline peroxide bleaching medium. Examples of the water-soluble, fibre-reactive yellowing inhibitors are the novel, N-(2,2,6,6-tetramethyl-1-oxyl-piperidin-4-yl)-N'-{2-[2-(2,2,6,6-tetramethyl-1-oxyl-piperidin-4-ylamino)-ethylamino]-ethyl}-ethane-1,2-diamine (abbreviated as TETA-2TEMPO) and its hydroxylamine hydrochloride derivative, N-(2,2,6,6-tetramethyl-1-hydroxyl-piperidin-4-yl)-N'-{2-[2-(2,2,6,6-tetramethyl-1-hydroxyl-piperidin-4-ylamino)-ethylamino]-ethyl}-ethane-1,2-diamine hexahydrochloride (abbreviated as TETA-2TEMPOH-6HCl).
摘要翻译：描述了一种用于生产光稳定和工艺稳定的木质纤维素材料的新方法，特别是生产具有大大改进的光和工艺稳定性的机械木浆，以及得到的改进的光和工艺稳定性和纸张的纸浆含有这种纸浆。该新方法涉及木质纤维素材料如漂白的机械机械纸浆（BCTMP）与（a）具有两个或多个仲氨基或铵（-NHR'或-HN + HR）的水溶性纤维反应性黄变抑制剂的反应 '），叔氨基或铵（-NR'R“或-HN + R'R”）和/或季铵（-N + R'R''R“'）官能团的水性介质或（b）在碱性过氧化物漂白介质中或水性介质中具有所述氨基或铵官能团的水溶性纤维反应性受阻胺光稳定剂，随后在碱性过氧化物漂白介质中漂白该物质。水溶性纤维反应性黄变抑制剂的实例是新型的N-（2,2,6,6-四甲基-1-氧基 - 哌啶-4-基）-N' - {2- [2-（ 2,2,6,6-四甲基-1-氧基 - 哌啶-4-基氨基） - 乙基氨基] - 乙基} - 乙烷-1,2-二胺（简称为TETA-2TEMPO）及其盐酸羟胺衍生物，N-（ 2,2,6,6-四甲基-1-羟基 - 对哌啶-4-基）-N' - {2- [2-（2,2,6,6-四甲基-1-羟基 - 哌啶-4-基氨基） - 乙基氨基] - 乙基} - 乙烷-1,2- 二胺六盐酸盐（简写为TETA-2TEMPOH-6HCl）。

2. 发明申请

WO2002059417A3 HEAT TREATMENT OF POLYSULPHIDE CONTAINING WHITE LIQUORS 审中-公开
公开(公告)号：WO2002059417A3
公开(公告)日：2002-08-01
申请号：PCT/CA2002/000078
申请日：2002-01-23
申请人： PULP AND PAPER RESEARCH INSTITUTE OF CANADA , VAN HEEK, Ronald, Peter , DORRIS, Gilles, Marcel , ULOTH, Victor, Charles , PAGE, Natalie , HU, Thomas, Qiuxiong , LECLERC, Denys, Francois
发明人： VAN HEEK, Ronald, Peter , DORRIS, Gilles, Marcel , ULOTH, Victor, Charles , PAGE, Natalie , HU, Thomas, Qiuxiong , LECLERC, Denys, Francois
IPC分类号： D21C11/00
摘要： Oxidized white liquor is heat treated to increase the concentration of PS UV measured at 285 or 286 nm or PS VIS measured at 416 nm and the PS UV /PS GR or PS VIS /PS GR ratio, whereby the content of active polysulphide in the total polysulphide is increased which active polysulphide can be exploited to increase pulp yield in Kraft pulping.

3. 发明申请

WO2004070110A1 BLEACHING AND BRIGHTNESS STABILIZATION OF LIGNOCELLULOSIC MATERIALS WITH WATER-SOLUBLE PHOSPINES OR PHOSPHONIUM COMPOUNDS 审中-公开
标题翻译：水溶性磷化合物或磷酸盐化合物的纤维素材料的漂白和亮度稳定
公开(公告)号：WO2004070110A1
公开(公告)日：2004-08-19
申请号：PCT/CA2004/000144
申请日：2004-02-03
申请人： PULP AND PAPER RESEARCH INSTITUTE OF CANADA , UNIVERSITY OF BRITISH COLUMBIA , HU, Thomas, Qiuxiong , JAMES, Brian, R. , YAWALATA, Dominggus , EZHOVA, Maria, B.
发明人： HU, Thomas, Qiuxiong , JAMES, Brian, R. , YAWALATA, Dominggus , EZHOVA, Maria, B.
IPC分类号： D21C9/10
CPC分类号： D21C9/1084 , D21C9/1047 , D21H21/32
摘要： A method for the bleaching and brightness stabilization of lignocellulosic materials is described. The method involves the treatment of lignocellulosic materials, in particular, (a) wood pulps such as thermomechanical pulps (TMP) and chemithermomechanical pulps (CTMP), and (b) papers made from wood pulps, with a water-soluble phosphine or a phosphonium compound preferably containing at least one phosphorus hydroxyalkyl bond/linkage, for example a phosphorus hydroxymethyl bond/linkage (P-CH 2 OH). One example of such a water-soluble phosphine is the commercially available, tris(hydroxymethyl)phosphine (THP), P(CH 2 OH) 3 . One example of such a phosphonium compound is the commercially available, tetrakis(hydroxymethyl)phosphonium chloride (THPC), [P(CH 2 OH) 4 ]Cl.
摘要翻译：描述了用于木质纤维素材料的漂白和亮度稳定的方法。该方法涉及木质纤维素材料的处理，特别是（a）木浆如热机械纸浆（TMP）和机械剪切纸浆（CTMP），和（b）由木浆制成的纸，其中含有水溶性膦或鏻化合物优选含有至少一个磷羟烷基键/键，例如磷羟甲基键/键（P-CH 2 OH）。这种水溶性膦的一个例子是市售的三（羟甲基）膦（THP），P（CH 2 OH）3。这种鏻化合物的一个实例是市售的氯化四（羟甲基）鏻（THPC），[P（CH 2 OH）4] Cl。

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