Process for deinking waste paper
    1.
    发明授权
    Process for deinking waste paper 失效
    废纸脱墨工艺

    公开(公告)号:US07731818B2

    公开(公告)日:2010-06-08

    申请号:US11570452

    申请日:2005-06-16

    IPC分类号: D21C5/02

    CPC分类号: D21C5/025 Y02W30/648

    摘要: The present invention relates to a process for deinking waste paper comprising treating the waste paper with a peroxide compound in an aqueous alkaline medium in the presence of a first polymer (A) comprising a Ca-binding polymer in the form of a polycarboxylate polymer and a second polymer (B) comprising a poly-alfa-hydroxyacrylic acid or a salt thereof or the corresponding polylactone, said process additionally comprising treating the waste paper with at least one non-ionic surfactant or with at least one combination of a non-ionic surfactant and a fatty acid or a salt thereof to promote ink detachment and/or ink removal.

    摘要翻译: 本发明涉及一种废纸脱墨方法,包括在含有多羧酸酯聚合物形式的Ca-结合聚合物的第一聚合物(A)存在下,在含水碱性介质中用过氧化物处理废纸, 第二聚合物(B),其包含聚α-羟基丙烯酸或其盐或相应的聚内酯,所述方法另外包括用至少一种非离子表面活性剂或至少一种非离子表面活性剂的组合处理废纸 和脂肪酸或其盐以促进油墨分离和/或油墨去除。

    Process for manufacturing board
    2.
    发明授权
    Process for manufacturing board 有权
    制造板工艺

    公开(公告)号:US07481905B2

    公开(公告)日:2009-01-27

    申请号:US10322730

    申请日:2002-12-19

    摘要: The invention relates to a process for manufacturing liquid packaging board, in which process a board pulp is treated with a percarboxylic acid by adding to the pulp percarboxylic acid in an amount of 0.5-5 kg/ton of dry pulp, indicated as a 100 percent percarboxylic acid, whereafter, or simultaneously with the percarboxylic acid treatment, sizing is carried out with a combination of a resin size and a neutral size, which is followed by board forming. The manufactured board has good resistance to liquid penetration.

    摘要翻译: 本发明涉及一种用于制造液体包装板的方法,其中通过向纸浆过羧酸加入0.5-5kg /吨干浆的纸浆,其中纸浆用过羧酸处理,其指示为100% 过羧酸,然后或同时进行过羧酸处理,上浆是用树脂尺寸和中性尺寸的组合进行的,然后进行板成型。 制造的板具有良好的抗液体渗透性。

    Composition and process for the treatment of fibre material
    3.
    发明授权
    Composition and process for the treatment of fibre material 有权
    用于处理纤维材料的组成和工艺

    公开(公告)号:US08048264B2

    公开(公告)日:2011-11-01

    申请号:US11596140

    申请日:2005-05-10

    IPC分类号: D21C3/20

    摘要: The present invention relates to a stabilizing composition comprising following components (A) a polymer having following formula wherein R1 is a hydrogen atom or an alkyl group containing 1 to 12 carbon atoms, R2 is —COOM or —CH2COOM, M is a hydrogen atom, an alkali metal ion, an alkaline earth metal ion, an ammonium ion or a mixture thereof, n, m and k are molar ratios of corresponding monomers, wherein n is 0 to 0.95, m is 0.05 to 0.9, and k is 0 to 0.8, and (n+m+k) equals 1, and the weight average molecular weight is between 500 and 20,000,000 g/mol, (B) a chelating agent, and (C) an alkaline earth metal compound. The invention also relates to a process for the treatment of a fiber material.

    摘要翻译: 本发明涉及一种稳定组合物,其包含以下组分(A)具有下式的聚合物:其中R 1是氢原子或含有1至12个碳原子的烷基,R 2是-COOM或-CH 2 COOM,M是氢原子, 碱金属离子,碱土金属离子,铵离子或其混合物,n,m和k是相应单体的摩尔比,其中n为0至0.95,m为0.05至0.9,k为0至0.8 ,(n + m + k)等于1,重均分子量为500〜20,000,000g / mol,(B)螯合剂和(C)碱土金属化合物。 本发明还涉及一种处理纤维材料的方法。

    Bleaching of chemical pulp and treatment with a chelating agent
    4.
    发明授权
    Bleaching of chemical pulp and treatment with a chelating agent 失效
    漂白化学纸浆和用螯合剂处理

    公开(公告)号:US06331192B1

    公开(公告)日:2001-12-18

    申请号:US09554331

    申请日:2000-06-30

    IPC分类号: D06L306

    摘要: The invention relates to a process for the bleaching of chemical pulp, wherein the pulp is delignified and/or bleached with chlorine dioxide or with a combination of chlorine dioxide and a per-compound, and additionally the pulp is chelated in order to bind heavy metals, such as Fe, Mn and/or Cu, to a chelate complex. The chelate complex is selected from the group made up of N-bis-[(1,2-dicarboxylethoxy)-ethyl]-amine, N-bis[(1,2-dicarboxylethoxy)-ethyl]-aspartic acid and N-tris-[(1,2-dicarboxylethoxy)-ethyl]-amine, and the alkali metal and earth-alkali metal salts of these, and the chelating treatments are carried out simultaneously by combining the chelating chemical with the pulp in the same bleaching stage as chlorine dioxide.

    摘要翻译: 本发明涉及一种用于漂白化学纸浆的方法,其中纸浆用二氧化氯或二氧化氯和每种化合物的组合进行脱木质素和/或漂白,另外纸浆被螯合以结合重金属 ,如Fe,Mn和/或Cu,与螯合络合物。 螯合络合物选自N-双 - [(1,2-二羧基乙氧基) - 乙基] - 胺,N-双[(1,2-二羧基乙氧基) - 乙基] - 天冬氨酸和N-三 - [(1,2-二羧基乙氧基) - 乙基] - 胺,以及这些的碱金属和碱土金属盐,螯合处理通过将螯合化学品与纸浆在同一漂白阶段 二氧化氯。

    Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching
    5.
    发明授权
    Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching 有权
    用于纤维素纤维材料的过氧化物漂白的聚合物组合物和用于过氧化物漂白的方法

    公开(公告)号:US07867357B2

    公开(公告)日:2011-01-11

    申请号:US12651957

    申请日:2010-01-04

    摘要: The present invention relates to a polymer composition for peroxide bleaching of a cellulosic fiber material, said composition being in the form of a stable aqueous polymer solution obtained by bringing in an aqueous medium a first polymer (A) comprising a partly or totally acidic homopolymer of acrylic acid, methacrylic acid or maleic acid, or a copolymer of acrylic acid and/or methacrylic acid with an unsaturated dicarboxylic acid, into contact with a second polymer (B) comprising a polylactone of a poly-alfa-hydroxyacrylic acid in solid form or as a moist powder or as a slurry, said polymer solution having a pH of at most 5. The invention also relates to peroxide bleaching processes.

    摘要翻译: 本发明涉及一种用于纤维素纤维材料的过氧化物漂白的聚合物组合物,所述组合物是通过将水性介质引入包含部分或全部酸性均聚物的第一聚合物(A)而获得的稳定的聚合物水溶液的形式, 丙烯酸,甲基丙烯酸或马来酸,或丙烯酸和/或甲基丙烯酸与不饱和二羧酸的共聚物与包含固体形式的聚α-羟基丙烯酸的聚内酯的第二聚合物(B)接触,或 作为湿粉末或浆料,所述聚合物溶液的pH值至多为5.本发明还涉及过氧化物漂白方法。

    Composition and process for the treatment of fibre material
    6.
    发明授权
    Composition and process for the treatment of fibre material 有权
    用于处理纤维材料的组成和工艺

    公开(公告)号:US08066846B2

    公开(公告)日:2011-11-29

    申请号:US12523381

    申请日:2008-01-31

    IPC分类号: D21C3/20

    摘要: The invention relates to a stabilizing composition comprising following components (A) a polymer having the following formula: wherein R1 is a hydrogen atom or an alkyl group containing 1 to 12 carbon atoms, R2 is —COOM or —CH2COOM, M is a hydrogen atom, an alkali metal ion, an alkaline earth metal ion, an ammonium ion or a mixture thereof, n, m and k are molar ratios of corresponding monomers, wherein n is 0 to 0.95, m is 0.05 to 0.9, and k is 0 to 0.8, and (n+m+k) equals 1, and the weight average molecular weight is between 500 and 20,000,000 g/mol, (B) a chelating agent, (C) a poly-alpha-hydroxyacrylic acid or an alkaline salt thereof or the corresponding polylactone thereof, and (D) optionally a polycarboxylic acid polymer or an alkaline salt thereof. The invention also relates to a process for the treatment of a fiber material.

    摘要翻译: 本发明涉及一种稳定组合物,其包含以下组分(A)具有下式的聚合物:其中R 1是氢原子或含有1至12个碳原子的烷基,R 2是-COOM或-CH 2 COOM,M是氢原子 碱金属离子,碱土金属离子,铵离子或其混合物,n,m和k是相应单体的摩尔比,其中n为0至0.95,m为0.05至0.9,k为0至 0.8,和(n + m + k)等于1,重均分子量为500〜20,000,000g / mol,(B)螯合剂,(C)聚-α-羟基丙烯酸或其碱金属盐 或其相应的聚内酯,和(D)任选的多元羧酸聚合物或其碱式盐。 本发明还涉及一种处理纤维材料的方法。

    Process for the peracid bleaching of chelated chemical pulp
    7.
    发明授权
    Process for the peracid bleaching of chelated chemical pulp 失效
    螯合化学纸浆过酸漂白工艺

    公开(公告)号:US06264790B1

    公开(公告)日:2001-07-24

    申请号:US09194349

    申请日:1998-11-24

    IPC分类号: D21C910

    摘要: A process for the bleaching of chemical pulp, in which process the pulp is delignified with a peracid and additionally the pulp is chelated in order to bind heavy metals, such as Fe, Mn and/or Cu, into a chelate complex. According to the invention, the chelating is carried out using a chemical which has been selected from a group consisting of N-bis-((1,2-dicarboxy-ethoxy)-ethyl)-amine, N-bis-((1,2-dicarboxy-ethoxy)-ethyl)-aspartic acid and N-tris-((1,2-dicarboxy-ethoxy)-ethyl)-amine, as well as the alkali metal and earth-alkali metal salts thereof, and the peracid and chelating treatments are carried out simultaneously by combining the peracid and the said chelating chemical in the same solution phase. In the bleaching sequence the treatment according to the invention may follow, for example, an ozone delignification and precede an alkaline peroxide step, and in the latter case a magnesium compound, such as MgSO4, may be added to the pulp before the alkali step.

    摘要翻译: 用于漂白化学纸浆的方法,其中纸浆用过酸脱木质,另外纸浆被螯合以将重金属如Fe,Mn和/或Cu结合到螯合络合物中。 根据本发明,使用选自N-双 - ((1,2-二羧基 - 乙氧基) - 乙基) - 胺,N-双 - ((1,1-二甲基 - 2-二羧基 - 乙氧基) - 乙基) - 天冬氨酸和N-三 - ((1,2-二羧基 - 乙氧基) - 乙基) - 胺,以及其碱金属和碱土金属盐,以及过酸 并且通过将过酸和所述螯合化学品组合在相同的溶液相中同时进行螯合处理。 在漂白顺序中,根据本发明的处理可以遵循例如臭氧脱木质素,并且在碱性过氧化物步骤之前,并且在后一种情况下可以在碱性步骤之前将镁化合物如MgSO 4加入到纸浆中。

    Process for the treatment of fibre material and new composition
    8.
    发明授权
    Process for the treatment of fibre material and new composition 有权
    处理纤维材料和新成分的方法

    公开(公告)号:US07988821B2

    公开(公告)日:2011-08-02

    申请号:US10587564

    申请日:2007-06-13

    IPC分类号: D21C3/20

    摘要: The invention relates to a process for the treatment of a fibre material comprising the step of contacting the fibre material in an aqueous medium with a chelating agent and a polymer having following general formula wherein R1 is a hydrogen atom or an alkyl group containing 1 to 12 carbon atoms, R2 is —COOM or —CH2COOM, M is a hydrogen atom, an alkali metal ion, an alkaline earth metal ion, an ammonium ion or a mixture thereof, n, m and k are molar ratios of corresponding monomers, wherein n is 0 to 0.95, m is 0.05 to 0.9, and k is 0 to 0.8, and (n+m+k) equals 1, and the weight average molecular weight is between 500 and 20,000,000 g/mol. The invention also relates to a composition comprising a chelating agent and the above polymer.

    摘要翻译: 本发明涉及一种处理纤维材料的方法,包括使水性介质中的纤维材料与螯合剂和具有以下通式的聚合物接触的步骤:其中R1是氢原子或含1至12个碳原子的烷基 碳原子,R 2是-COOM或-CH 2 COOM,M是氢原子,碱金属离子,碱土金属离子,铵离子或其混合物,n和m是相应单体的摩尔比,其中n 为0〜0.95,m为0.05〜0.9,k为0〜0.8,(n + m + k)为1,重均分子量为500〜20,000,000g / mol。 本发明还涉及包含螯合剂和上述聚合物的组合物。

    Bleaching of cellulosic fibre material with peroxide using polymers as a stabiliser
    9.
    发明授权
    Bleaching of cellulosic fibre material with peroxide using polymers as a stabiliser 有权
    使用聚合物作为稳定剂漂白纤维素纤维材料与过氧化物

    公开(公告)号:US07754048B2

    公开(公告)日:2010-07-13

    申请号:US10541775

    申请日:2004-01-09

    IPC分类号: D21C3/00 D06L3/02

    CPC分类号: D21C9/1042 D21C9/163

    摘要: The present invention relates to a process for bleaching a cellulosic fibre material with a peroxide compound in an aqueous alkaline medium, comprising a bleaching step wherein: a) a first polymer (A) comprising a homopolymer of acrylic acid, methacrylic acid or maleic acid, or a copolymer of acrylic acid and/or methacrylic acid with an unsaturated dicarboxylic acid, and a solution of a second polymer (B) comprising a poly-alpha-hydroxyacrylic acid or a salt thereof, are added to a cellulosic fibre material, and b) thereafter adding a peroxide compound and an alkaline substance and carrying out the bleaching.

    摘要翻译: 本发明涉及一种在含水碱性介质中用过氧化物漂白纤维素纤维材料的方法,包括漂白步骤,其中:a)包含丙烯酸,甲基丙烯酸或马来酸的均聚物的第一聚合物(A) 或丙烯酸和/或甲基丙烯酸与不饱和二羧酸的共聚物和包含聚-α-羟基丙烯酸或其盐的第二聚合物(B)的溶液加入到纤维素纤维材料中,并且b ),然后加入过氧化物和碱性物质并进行漂白。

    Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching
    10.
    发明授权
    Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching 有权
    用于纤维素纤维材料的过氧化物漂白的聚合物组合物和用于过氧化物漂白的方法

    公开(公告)号:US07674851B2

    公开(公告)日:2010-03-09

    申请号:US10538074

    申请日:2004-01-09

    IPC分类号: C08F220/00 D06L3/02 C01B15/00

    摘要: The present invention relates to a polymer composition for peroxide bleaching of a cellulosic fiber material, said composition being in the form of a stable aqueous polymer solution obtained by bringing in an aqueous medium a first polymer (A) comprising a partly or totally acidic homopolymer of acrylic acid, methacrylic acid or maleic acid, or a copolymer of acrylic acid and/or methacrylic acid with an unsaturated dicarboxylic acid, into contact with a second polymer (B) comprising a polylactone of a poly-alfa-hydroxyacrylic acid in solid form or as a moist powder or as a slurry, said polymer solution having a pH of at most 8, The invention also relates to peroxide bleaching processes.

    摘要翻译: 本发明涉及一种用于纤维素纤维材料的过氧化物漂白的聚合物组合物,所述组合物是通过将水性介质引入包含部分或全部酸性均聚物的第一聚合物(A)而获得的稳定的聚合物水溶液的形式, 丙烯酸,甲基丙烯酸或马来酸,或丙烯酸和/或甲基丙烯酸与不饱和二羧酸的共聚物与包含固体形式的聚α-羟基丙烯酸的聚内酯的第二聚合物(B)接触,或 作为湿粉末或浆料,所述聚合物溶液的pH值至多为8,本发明还涉及过氧化物漂白方法。