Bleaching of cellulosic fibre material with peroxide using polymers as a stabiliser
    1.
    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。

    Bleaching of cellulosic fibre material with peroxide using polymers as a stabiliser
    2.
    发明申请
    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:US20060144534A1

    公开(公告)日:2006-07-06

    申请号:US10541775

    申请日:2004-01-09

    IPC分类号: D21C9/16 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-alfa-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,以及包含聚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,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
    3.
    发明申请
    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:US20060131539A1

    公开(公告)日:2006-06-22

    申请号:US10538074

    申请日:2004-01-09

    IPC分类号: C11D3/39

    摘要: The present invention relates to a polymer composition for peroxide bleaching of a cellulosic fibre 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 po9lylactone 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第二聚合物(B)接触,所述第二聚合物(B)包含固体形式的聚α-羟基丙烯酸的聚乙二醇内酯,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。

    New Composition and Process for the Treatment of Fibre Material
    4.
    发明申请
    New Composition and Process for the Treatment of Fibre Material 有权
    纤维材料处理的新组成和工艺

    公开(公告)号:US20080264584A1

    公开(公告)日:2008-10-30

    申请号:US11596140

    申请日:2005-05-10

    IPC分类号: D21C5/02 C08G63/00 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 fibre material.

    摘要翻译: 本发明涉及稳定组合物,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, N是-COOM或-CH 2 COOM,M是氢原子,碱金属离子,碱土金属离子,铵离子或它们的混合物,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至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。

    Composition and process for the treatment of fibre material
    5.
    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。

    Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching
    6.
    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。

    Process for the treatment of fibre material and new composition
    7.
    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。

    Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching
    8.
    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。

    Process For The Treatment Of Fibre Material And New Composition
    9.
    发明申请
    Process For The Treatment Of Fibre Material And New Composition 有权
    纤维材料和新成分的处理工艺

    公开(公告)号:US20080035287A1

    公开(公告)日:2008-02-14

    申请号:US10587564

    申请日:2005-02-23

    IPC分类号: D21C9/10 D21C9/16

    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: 本发明涉及一种纤维材料的处理方法,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 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,重均分子量在500至20,000,000g / mol之间。 本发明还涉及包含螯合剂和上述聚合物的组合物。

    Process for preparing a cationically modified (meth)acrylamide polymer and use of the polymer
    10.
    发明授权
    Process for preparing a cationically modified (meth)acrylamide polymer and use of the polymer 有权
    制备阳离子改性(甲基)丙烯酰胺聚合物的方法和该聚合物的用途

    公开(公告)号:US06387998B1

    公开(公告)日:2002-05-14

    申请号:US09529627

    申请日:2000-04-13

    IPC分类号: C07C22100

    CPC分类号: C02F1/56 C08F8/30 C08F20/54

    摘要: The invention relates to a process for preparing a cationically modified (meth)acrylamide polymer by the Mannich reaction. There is prepared in advance a stable aldehyde-secondary amine adduct, which is obtained as a reaction product of an aqueous solution of the secondary amine and an aqueous solution of the aldehyde, and which, after the formation of the adduct, is stabilized to endure storage, by lowering the pH of the mixture of 7 or below and/or by adding methanol, and the adduct thus prepared is added to an aqueous solution of the (meth)acrylamide polymer and the pH is adjusted to an alkaline level, whereupon modification occurs. The invention also relates to the use of the modified (meth)acrylamide polymer as a flocculation, retention or dewatering agent.

    摘要翻译: 本发明涉及通过曼尼希反应制备阳离子改性(甲基)丙烯酰胺聚合物的方法。 预先制备稳定的醛 - 仲胺加合物,其作为仲胺的水溶液和醛的水溶液的反应产物获得,并且在形成加合物之后,其稳定化以耐受 通过降低7或更低的混合物的pH和/或通过加入甲醇来储存,并将如此制备的加合物加入到(甲基)丙烯酰胺聚合物的水溶液中,并将pH调节至碱性水平, 发生。 本发明还涉及改性(甲基)丙烯酰胺聚合物作为絮凝,保留或脱水剂的用途。