公开(公告)号：US20130098570A1

公开(公告)日：2013-04-25

申请号：US13805998

申请日：2011-07-01

Applicant: Lisbeth Kalum ,  Henrik Lund ,  Lars Henrik Oestergaard ,  Hanne Lyngby Hoest Pedersen

Inventor： Lisbeth Kalum ,  Henrik Lund ,  Lars Henrik Oestergaard ,  Hanne Lyngby Hoest Pedersen

IPC: C12N9/00

CPC classification number: C12N9/0065 ,  D21C5/005 ,  D21C9/1036 ,  D21C9/163

Abstract: The use of a peroxidase and violuric acid, or a derivative thereof in the bleaching of pulp, such as paper materials, such as paper, linerboard, corrugated paperboard, tissue, towels, corrugated containers and boxes. The peroxidases of the invention are classified as EC 1.11.1.7. The effect of peroxidase is bleaching and de-inking of the pulp, e.g. the paper pulp and the resulting paper material.

Abstract translation: 在纸浆漂白过程中使用过氧化物酶及其衍生物或其衍生物，例如纸张，纸板，瓦楞纸板，纸巾，毛巾，瓦楞纸箱和纸盒等。 本发明的过氧化物酶分类为EC 1.11.1.7。 过氧化物酶的作用是纸浆的漂白和脱墨，例如 纸浆和所得纸材料。

公开(公告)号：US20130062026A1

公开(公告)日：2013-03-14

申请号：US13571233

申请日：2012-08-09

Applicant: Iori TOMODA ,  Yosuke UCHIDA ,  Hiroyuki NAGATANI ,  Ayano KAWAE ,  Takahiro CHO ,  Wakana UESUGI ,  Tetsuo KOSHITSUKA

Inventor： Iori TOMODA ,  Yosuke UCHIDA ,  Hiroyuki NAGATANI ,  Ayano KAWAE ,  Takahiro CHO ,  Wakana UESUGI ,  Tetsuo KOSHITSUKA

IPC: D21C9/147

CPC classification number: D21C9/144 ,  D21C9/1036 ,  D21C9/1042 ,  D21C9/1084 ,  D21C9/163

Abstract: A method for producing bleached pulp, including processing unbleached pulp obtained by cooking a lignocellulose substance, followed by treatment with peroxomonosulfuric acid and thereafter by multistage chlorine-free bleaching treatment starting from chlorine dioxide treatment; a method for producing bleached pulp, including processing unbleached pulp for alkali-oxygen bleaching followed by chlorine-free bleaching treatment or totally chlorine-free bleaching treatment to bleach it to a degree of brightness of from 70 to 89%, and further followed by treatment with peroxomonosulfuric acid; and paper produced by the use of the bleached pulp produced according to these production methods, at a papermaking pH of at most 6.

Abstract translation: 一种漂白纸浆的制造方法，其特征在于，包括处理通过蒸煮木素纤维素物质而得到的未漂白的纸浆，然后用二氯硝酸处理，然后从二氧化氯处理开始进行多级无氯漂白处理; 一种生产漂白纸浆的方法，包括加工未漂白的纸浆进行碱氧漂白，然后进行无氯漂白处理或完全无氯漂白处理，将其漂白至亮度为70-89％，再进行处理 与次氯酸; 以及通过使用根据这些生产方法生产的漂白纸制造的纸，造纸pH最多为6。

公开(公告)号：US08389254B2

公开(公告)日：2013-03-05

申请号：US13070123

申请日：2011-03-23

Applicant: Robert Dicosimo ,  John Edward Gavagan ,  Mark Scott Payne

Inventor： Robert Dicosimo ,  John Edward Gavagan ,  Mark Scott Payne

IPC: C12N9/18

CPC classification number: C12N9/18 ,  C11D3/38636 ,  C11D3/3945 ,  C12P7/40 ,  D21C5/005 ,  D21C9/1036

Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.

公开(公告)号：US08268123B2

公开(公告)日：2012-09-18

申请号：US12301130

申请日：2007-05-15

Applicant: Iori Tomoda ,  Yosuke Uchida ,  Hiroyuki Nagatani ,  Ayano Kawae ,  Takahiro Cho ,  Wakana Uesugi ,  Tetsuo Koshitsuka

Inventor： Iori Tomoda ,  Yosuke Uchida ,  Hiroyuki Nagatani ,  Ayano Kawae ,  Takahiro Cho ,  Wakana Uesugi ,  Tetsuo Koshitsuka

IPC: D21C9/16

CPC classification number: D21C9/144 ,  D21C9/1036 ,  D21C9/1042 ,  D21C9/1084 ,  D21C9/163

Abstract: Provided are a method for producing bleached pulp, comprising processing unbleached pulp obtained by cooking a lignocellulose substance, for alkali-oxygen bleaching followed by treatment with peroxomonosulfuric acid and thereafter by multistage chlorine-free bleaching treatment starting from chlorine dioxide treatment; a method for producing bleached pulp, comprising processing the unbleached pulp for alkali-oxygen bleaching followed by chlorine-free bleaching treatment or totally chlorine-free bleaching treatment to bleach it to a degree of brightness of from 70 to 89%, and further followed by treatment with peroxomonosulfuric acid; and paper produced by the use of the bleached pulp produced according to these production methods, at a papermaking pH of at most 6. Provided are the efficient production methods for bleached pulp in which the color reversion resistance is enhanced in chlorine-free bleaching and the bleaching cost increase is prevented, and the paper produced by the use of the bleached pulp according to an acid papermaking process.

Abstract translation: 本发明提供一种漂白纸浆的制造方法，其特征在于，对由木质纤维素物质进行蒸煮而得到的未漂白纸浆进行碱氧漂白处理，然后用二氯硝酸处理，然后从二氧化氯处理开始进行多级无氯漂白处理。 一种漂白纸浆的制造方法，其特征在于，对未漂白的纸浆进行碱氧漂白处理，然后进行无氯漂白处理或全部无氯漂白处理，将其漂白至亮度为70〜89％ 用次氯酸处理; 以及通过使用根据这些生产方法生产的漂白纸制成的纸，造纸pH值至多为6.提供了在无氯漂白中提高耐逆色性的漂白纸浆的有效生产方法。 防止漂白成本增加，并且根据酸性造纸方法使用漂白纸浆生产纸。

公开(公告)号：US07976582B2

公开(公告)日：2011-07-12

申请号：US12523057

申请日：2007-12-20

Applicant: Joaquim Manuel Henriques de Almeida ,  Herbert Bachus ,  Zinaida Ponie Djodikromo ,  Christian Doerfler ,  Ronald Hage ,  Joachim Lienke

Inventor： Joaquim Manuel Henriques de Almeida ,  Herbert Bachus ,  Zinaida Ponie Djodikromo ,  Christian Doerfler ,  Ronald Hage ,  Joachim Lienke

IPC: D06L3/02 ,  C11D3/26 ,  C11D3/39 ,  C11D3/395

CPC classification number: C11D3/3932 ,  D06L4/12 ,  D06L4/13 ,  D21C9/1036 ,  D21C9/1042 ,  D21C9/163

Abstract: The present invention concerns the treatment of a cellulose material in the presence of a transition metal catalyst, hydrogen peroxide whilst maintaining the pH of the treatment mixture.

Abstract translation: 本发明涉及在过渡金属催化剂，过氧化氢的存在下处理纤维素材料，同时保持处理混合物的pH。

公开(公告)号：US20110042022A1

公开(公告)日：2011-02-24

申请号：US12736292

申请日：2009-03-25

Applicant: Yonghao Ni ,  Zhibin He

Inventor： Yonghao Ni ,  Zhibin He

IPC: D21C3/26

CPC classification number: D21C9/142 ,  D21C9/1036

Abstract: The present invention provides an improved process for chlorine dioxide bleaching of chemical pulps in an aqueous suspension, which uses magnesium hydroxide or magnesium oxide. The process involves the addition of magnesium hydroxide or magnesium oxide to the pulp, in addition to chlorine dioxide, maintaining the mixture at a pH between about 2.5 to 7.5 for about 1 or more hours, most suitably between about 1-4 hours. This process can be used in the D1 or D2 stage of a typical D0EopD1E2D2 bleaching sequence, as well as in the chlorine dioxide brightening stage of other three, four, five, and six-stage bleaching sequences of either the so-called ECF process, or those containing elemental chlorine (Cl2). The temperature is between about 40 to about 90° C., and the pulp consistency is between about 1 to about 16%.

Abstract translation: 本发明提供了使用氢氧化镁或氧化镁的水性悬浮液中化学纸浆二氧化氯漂白的改进方法。 该方法除了二氧化氯之外还向纸浆中加入氢氧化镁或氧化镁，将混合物保持在约2.5至7.5之间的pH约1或更多小时，最合适地在约1-4小时之间。 该方法可用于典型的D0EopD1E2D2漂白序列的D1或D2阶段，也可用于所谓ECF工艺的其他三，四，五和六级漂白序列的二氧化氯增白阶段， 或含有元素氯（Cl2）的那些。 温度在约40至约90℃之间，纸浆稠度在约1至约16％之间。

公开(公告)号：US20110020874A1

公开(公告)日：2011-01-27

申请号：US12933865

申请日：2009-03-31

Applicant: Seiji Hata

Inventor： Seiji Hata

IPC: C12P19/00 ,  C08J9/00

CPC classification number: C12P7/10 ,  C08B1/00 ,  C08H8/00 ,  C12P19/02 ,  C12P19/14 ,  C12P2201/00 ,  C13K1/02 ,  D21C3/003 ,  D21C9/1036 ,  Y02E50/16

Abstract: The inventive process converts cellulosic biomass into a gel-like state that is readily hydrolyzed by appropriate enzymes. First the biomass is mechanically reduced in size. The biomass is then mixed and kneaded with an aqueous solution of a hydrophilic polymer that acts as a conditioning agent or as a co-solvent. During mixing the cellulose (and hemicellulose) in the biomass swells and becomes hydrated forming a viscous gel-like material. The processed material can then be thinned through the addition of water whereupon hydrolytic enzymes are mixed into the material and rapid hydrolysis into free sugars takes place. Dextrins are effective hydrophilic polymers for conditioning biomass. Polyvinyl alcohol is a particularly effective conditioning agent for use with biomass when converted into a viscous gel by adding borate ions.

Abstract translation: 本发明的方法将纤维素生物质转化成易于通过合适的酶水解的凝胶状态。 首先，生物质的机械尺寸减小。 然后将生物质与用作调理剂或共溶剂的亲水性聚合物的水溶液混合和捏合。 在混合过程中，生物质中的纤维素（和半纤维素）膨胀并变成水合形成粘稠的凝胶状材料。 然后可以通过加入水来将经处理的材料稀释，由此将水解酶混合到材料中，并且快速水解进入游离糖。 糊精是有效的亲水聚合物，用于调节生物量。 聚乙烯醇是一种特别有效的调理剂，用于通过加入硼酸盐离子将其转化成粘性凝胶时与生物质一起使用。

公开(公告)号：US07692004B2

公开(公告)日：2010-04-06

申请号：US12214491

申请日：2008-06-19

Applicant: Gunther Schlingloff ,  Torsten Wieprecht ,  Frank Bachmann ,  Josef Dannacher ,  Marie-Josée Dubs ,  Menno Hazenkamp ,  Grit Hänsler (-Richter) ,  Brigitte Schmidt ,  Albert Schneider ,  Peter Weingartner

Inventor： Gunther Schlingloff ,  Torsten Wieprecht ,  Frank Bachmann ,  Josef Dannacher ,  Marie-Josée Dubs ,  Menno Hazenkamp ,  Grit Hänsler (-Richter) ,  Brigitte Schmidt ,  Albert Schneider ,  Peter Weingartner

IPC: C07F15/00 ,  C07F15/02 ,  C07F15/04 ,  C07F15/06

CPC classification number: B01J31/1815 ,  B01J23/34 ,  B01J2231/70 ,  B01J2231/72 ,  B01J2531/16 ,  B01J2531/46 ,  B01J2531/72 ,  B01J2531/842 ,  B01J2531/845 ,  B01J2531/847 ,  C07D213/61 ,  C07D213/68 ,  C07D213/74 ,  C07F13/005 ,  C11D3/3932 ,  D06L4/10 ,  D06L4/12 ,  D06P5/02 ,  D06P5/153 ,  D21C9/1036 ,  D21C9/163

Abstract: Use of metal complex compounds of formula [LnMemXp]zYq  (1), wherein Me is manganese, titanium, iron, cobalt, nickel or copper, X is a coordinating or bridging radical, n and m are each independently of the other an integer having a value of from 1 to 8, p is an integer having a value of from 0 to 32, z is the charge of the metal complex, Y is a counter-ion, q=z/(charge Y), and L is a ligand of formula wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 and R11 are each independently of the others hydrogen; unsubstituted or substituted C1-C18alkyl or aryl; cyano; halogen; nitro; —COOR12 or —SO3R12 wherein R12 is in each case hydrogen, a cation or unsubstituted or substituted C1-C18alkyl or aryl; —SR13, —SO2R13 or —OR13 wherein R13 is in each case hydrogen or unsubstituted or substituted C1-C18alkyl or aryl; —N(R13)—NR′13R″13 wherein R13, R′13 and R″13 are as defined above for R13; —NR14R15 or —N⊕R14R15R16 wherein R14, R15 and R16 are each independently of the other(s) hydrogen or unsubstituted or substituted C1-C18alkyl or aryl, or R14 and R15 together with the nitrogen atom bonding them form an unsubstituted or substituted 5-, 6- or 7-membered ring which may optionally contain further hetero atoms; with the proviso that R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 and R11 are not simultaneously hydrogen, as catalysts for oxidation reactions, and the novel metal complex compounds of formula (1) and the novel ligands of formula (2).

Abstract translation: 使用式[LnMemXp] zYq（1）的金属络合物，其中Me是锰，钛，铁，钴，镍或铜，X是配位或桥连基团，n和m各自独立地为具有 值为1〜8，p为0〜32的整数，z为金属络合物的电荷，Y为抗衡离子，q = z /（电荷Y），L为 其中R 1，R 2，R 3，R 4，R 5，R 6，R 7，R 8，R 9，R 10和R 11各自独立地为氢; 未取代或取代的C 1 -C 18烷基或芳基; 氰基; 卤素; 硝基 -COOR 12或-SO 3 R 12，其中R 12在各种情况下为氢，阳离子或未取代或取代的C 1 -C 18烷基或芳基; -SR 13，-SO 2 R 13或-OR 13，其中R 13各自为氢或未取代或取代的C 1 -C 18烷基或芳基; -N（R 13）-NR'13R“13其中R 13，R 13和R 13如对R 13所定义; -NR14R15或-N⊕R14R15R16，其中R14，R15和R16各自独立地为氢或未取代或取代的C1-C18烷基或芳基，或者R14和R15与其键合的氮原子一起形成未取代或取代的5 可以任选地含有其它杂原子的6-或7-元环; 条件是R 1，R 2，R 3，R 4，R 5，R 6，R 7，R 8，R 9，R 10和R 11不同时为氢，作为氧化反应的催化剂，并且式（1）和新颖的新型金属络合物 式（2）的配体。

公开(公告)号：US20090148923A1

公开(公告)日：2009-06-11

申请号：US12253774

申请日：2008-10-17

Applicant: Wing L. SUNG

Inventor： Wing L. SUNG

IPC: C12N9/24

CPC classification number: C12N9/2482 ,  C12Y302/01008 ,  D21C5/005 ,  D21C9/1036 ,  D21H17/005

Abstract: A modified Family 11 xylanase enzyme comprising cysteine residues at positions 99 and 118 to form an intramolecular disulfide bond is provided. The modified xylanase is produced by substitution of an amino acid at position 99, 118 or both positions 99 and 118 with a cysteine to produce the intramolecular disulfide bond. Xylanases of the invention display improved thermophilicity, alkalophilicity or thermostability relative to wild-type xylanases. Such xylanases find use in a variety of applications in industry that require enzyme activities at temperatures and/or pH values above that of the native enzyme.

Abstract translation: 提供了修饰的家族11木聚糖酶，其包含位置99和118处的半胱氨酸残基以形成分子内二硫键。 经修饰的木聚糖酶是通过用半胱氨酸取代位置99,118或位置99和118的氨基酸产生分子内二硫键而产生的。 本发明的木聚糖酶相对于野生型木聚糖酶显示出改善的嗜热性，嗜碱性或热稳定性。 这种木聚糖酶可用于工业中需要酶活性的各种应用，温度和/或pH值高于天然酶的温度和/或pH值。

公开(公告)号：US20090145562A1

公开(公告)日：2009-06-11

申请号：US12315070

申请日：2008-11-26

Applicant: Xuan Truong Nguyen

Inventor： Xuan Truong Nguyen

IPC: D21B1/04 ,  D21C9/10 ,  D21H21/32 ,  D21C9/16

CPC classification number: D21C9/1036 ,  D21C9/163

Abstract: A process for bleaching mechanical wood pulp is provided comprising subjecting the wood pulp to at least one bleaching stage with one or more bleaching agents in the presence of one or more optical brightening agent, wherein the bleaching agents are selected from the group consisting of oxidative bleaching agents other than chlorine based bleaching agents such as chlorine dioxide, elemental chlorine or a combination thereof, reductive bleaching agents or any combination of two or more thereof.

Abstract translation: 提供了一种用于漂白机械木浆的方法，包括在一种或多种荧光增白剂的存在下，将木浆与一种或多种漂白剂进行至少一个漂白阶段，其中漂白剂选自氧化漂白 除了基于氯的漂白剂如二氧化氯，元素氯或其组合之外的试剂，还原性漂白剂或其两种或多种的任何组合。