利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

31 条记录 (耗时 0.018 秒)

    Process for concentrating soluble and colloidal substances in process waters
    1.
    发明授权
    Process for concentrating soluble and colloidal substances in process waters 失效
    将可溶性和胶态物质浓缩在工艺用水中的方法

    公开(公告)号：US06425975B1

    公开(公告)日：2002-07-30

    申请号：US09743635

    申请日：2001-03-14

    申请人： Liisa Viikari ,  Annikka Mustranta ,  Leena Fagernäs

    发明人： Liisa Viikari ,  Annikka Mustranta ,  Leena Fagernäs

    IPC分类号： D21C1100

    CPC分类号： D21C11/0021 ,  C02F3/342 ,  C02F11/12 ,  C02F2103/28 ,  D21C3/22

    摘要： The invention relates to a process for enhancing the concentration of the fiber derived dissolved and colloidal substances in process water that comes from mechanical pulping. According to the invention, process water is treated with enzyme preparations that have an effect on carbohydrates and that contain mannanase and/or endoglucanase, in particular, which break down the soluble carbohydrate polymers contained by the process water into low molecular weight oligosaccharides. The treatment prevents an increase in viscosity so that process water can be concentrated into a high dry content, or the treatment can be used to lower the viscosity of previously concentrated process water to facilitate after-treatment.

    摘要翻译： 本发明涉及一种提高来自机械制浆的工艺水中纤维衍生的溶解和胶态物质浓度的方法。 根据本发明，处理水用对碳水化合物具有影响并且含有甘露聚糖酶和/或内切葡聚糖酶的酶制剂进行处理，特别是将工艺水中含有的可溶性碳水化合物聚合物分解成低分子量寡糖。 该处理防止粘度增加，使得工艺水可以浓缩成高的干燥含量，或者可以使用处理来降低先前浓缩的工艺水的粘度以便于后处理。

    Method of dissolution of sausage skins and other cellulosic substances by means of an enzyme solution
    2.
    发明授权
    Method of dissolution of sausage skins and other cellulosic substances by means of an enzyme solution 失效
    通过酶溶液溶解香肠皮和其他纤维素物质的方法

    公开(公告)号：US5814515A

    公开(公告)日：1998-09-29

    申请号：US576826

    申请日：1995-12-21

    申请人： Liisa Viikari ,  Annikka Mustranta ,  Osmo Ojamo ,  Merja Itavaara ,  Tor Johansson

    发明人： Liisa Viikari ,  Annikka Mustranta ,  Osmo Ojamo ,  Merja Itavaara ,  Tor Johansson

    IPC分类号： A22C13/00 ,  C12P19/14 ,  C07G17/00 ,  A23G1/00

    CPC分类号： C12P19/14 ,  A22C13/0013

    摘要： A method of destruction of sausage skins and other mainly cellulosic substances by means of dissolution with an enzyme solution. Enzymes are added to a reactor that contains a water solution, after or before which the substances to be dissolved are added to the reactor. The substances to be dissolved are dissolved partly or completely, after which a new amount of substances to be dissolved are added to the reactor. When the enzymes have been adsorbed into the new substances to be dissolved, the solution containing the substances dissolved are recovered by separating the solution and the substances to be dissolved from each other, whereby water is added to the substances to be dissolved and if desired, the four foregoing steps are repeated a wished amount of times.

    摘要翻译： 通过用酶溶液溶解来破坏香肠皮和其它主要纤维素物质的方法。 将酶加入含有水溶液的反应器中，之后或之后将待溶解的物质加入到反应器中。 要溶解的物质部分或完全溶解，然后将新的待溶解物质加入到反应器中。 当酶被吸附到待溶解的新物质中时，通过将溶液和相互溶解的物质分开来回收含有溶解物质的溶液，由此将水加入待溶解的物质中，如果需要， 上述四个步骤重复了希望的次数。

    Process for preparing fiber boards
    5.
    发明授权
    Process for preparing fiber boards 失效
    纤维板制备工艺

    公开(公告)号：US06245269B1

    公开(公告)日：2001-06-12

    申请号：US09341538

    申请日：1999-10-13

    申请人： Liisa Viikari ,  Pia Qvintus-Leino ,  Marja-Leena Niku-Paavola ,  Simo Tuominen ,  Lars Gädda

    发明人： Liisa Viikari ,  Pia Qvintus-Leino ,  Marja-Leena Niku-Paavola ,  Simo Tuominen ,  Lars Gädda

    IPC分类号： B29C6700

    CPC分类号： D21J1/00 ,  C08L97/02 ,  D21F1/66 ,  C08L2666/26 ,  C08L2666/02

    摘要： A process for manufacturing fiber boards and similar wood-based products from a lignocellulosic raw material having a moisture content of at least 10 wt-%. According to the process, an aqueous fraction is separated from the fibers of the raw material, which fraction later is recycled to the process in order to form at least a part of the agent used for binding the fibers. Before mixing with the fibers, the aqueous effluent is concentrated and enzymatically oxidized in the presence of oxygen in order to polymerize the solubilized wood material and in order to increase its concentration. Lignin can be added to the water solubilized wood material or the solubilized wood material can be added to the fibers together with another binder. Eventually, the mixture is formed into a board and hardened.

    摘要翻译： 一种从水分含量至少为10重量％的木质纤维素原料制造纤维板和类似木制品的方法。 根据该方法，将水性馏分与原料的纤维分离，该馏分随后再循环到该方法中，以便形成用于粘合纤维的试剂的至少一部分。 在与纤维混合之前，将含水流出物浓缩并在氧气存在下酶促氧化，以便使溶解木材材料聚合并增加其浓度。 可以将木质素加入到水溶性木材中，或者将可溶的木质材料与另一种粘合剂一起加入到纤维中。 最终，混合物形成板并硬化。

    Intermediate product for preparation of lignin polymers and use thereof for production of wood materials
    8.
    发明授权
    Intermediate product for preparation of lignin polymers and use thereof for production of wood materials 失效
    用于制备木质素聚合物的中间产物及其用于生产木材的用途

    公开(公告)号：US06280855B1

    公开(公告)日：2001-08-28

    申请号：US09341578

    申请日：1999-10-25

    申请人： Liisa Viikari ,  Anneli Hase ,  Pia Qvintus-Leino ,  Marja-Leena Niku-Paavola

    发明人： Liisa Viikari ,  Anneli Hase ,  Pia Qvintus-Leino ,  Marja-Leena Niku-Paavola

    IPC分类号： B32B2106

    CPC分类号： C08H6/00 ,  C08L97/02 ,  C12P7/22 ,  Y10T428/31982 ,  C08L2666/26

    摘要： The invention relates to an intermediate product for the preparation of polymerizates from lignin derivatives obtained from the cellulose industry. The intermediate product is produced by treating the lignin derivatives with enzymes capable of oxidizing phenol in the presence of oxidizing agents. According to the invention the lignin derivatives are subjected to the enzymatic treatment for more than 3 hours in the presence of air, or they are subjected to an enzymatic treatment for more than 10 min, whereby air or oxygen is introduced. The lignin polymers obtained from the polymerization of lignin derivatives performed in the presence of active intermediate products are suited for use in the production of binding agents for wood materials.

    摘要翻译： 本发明涉及从纤维素工业得到的木质素衍生物制备聚合物的中间产物。 通过在氧化剂存在下用能够氧化苯酚的酶处理木质素衍生物来生产中间产物。 根据本发明，木质素衍生物在空气存在下进行酶处理超过3小时，或者进行酶处理超过10分钟，从而引入空气或氧气。 在活性中间产物存在下进行的木质素衍生物的聚合得到的木质素聚合物适用于生产木质材料的粘合剂。

    Wood preservation method and wood preservative
    9.
    发明授权
    Wood preservation method and wood preservative 失效
    木材保鲜方法和木材防腐剂

    公开(公告)号：US5538670A

    公开(公告)日：1996-07-23

    申请号：US232100

    申请日：1994-04-29

    申请人： Anne-Christine Ritschkoff ,  Liisa Viikari ,  Leena Paajanen ,  Tiina Mattila-Sandholm

    发明人： Anne-Christine Ritschkoff ,  Liisa Viikari ,  Leena Paajanen ,  Tiina Mattila-Sandholm

    IPC分类号： B27K3/16 ,  B27K3/20 ,  B27K3/34 ,  B27K3/36 ,  B27K3/38 ,  B27K3/52 ,  B27K5/00 ,  A01N33/00

    CPC分类号： B27K3/002 ,  B27K3/20 ,  B27K3/36 ,  B27K3/38 ,  Y10T428/31989

    摘要： The invention concerns a method and a preservative for protecting wood against decay. According to the method wood is treated with a wood preservative capable of preventing the growth and spread of fungi, said preservative containing at least one complexing agent which binds at least a portion of those metals, typically iron and manganese, naturally occurring in wood that are essential to the growth of fungi. The complexing agents employed can be, e.g., ethylenediaminetetra-acetate, ethylene diamine-di-o-hydroxyphenylacetate a polyphospate or a siderophore produced by a microorganisms. The wood preservative used in the method is water-borne and specific to the decay fungi attacking wood.

    摘要翻译： PCT No.PCT / FI92 / 00293 Sec。 371日期1994年04月29日 102（e）日期1994年4月29日PCT提交1992年10月30日PCT公布。 公开号WO93 / 08971 日期1993年5月13日本发明涉及一种用于保护木材免受腐烂的方法和防腐剂。 根据该方法，木材用能够防止真菌生长和扩散的木材防腐剂进行处理，所述防腐剂含有至少一种络合剂，其结合天然存在于木材中的那些金属（通常为铁和锰）的至少一部分 对真菌生长至关重要。 所使用的络合剂可以是例如乙二胺四乙酸酯，乙二胺 - 二邻羟基苯基乙酸酯，由多微生物或由微生物产生的铁载体。 该方法中使用的木材防腐剂是水性的，特异于腐烂真菌攻击木材。