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17 条记录 (耗时 0.023 秒)

    Method for preparing vanillin from old newsprint
    1.
    发明授权
    Method for preparing vanillin from old newsprint 失效
    从旧新闻纸制备香草醛的方法

    公开(公告)号：US5589030A

    公开(公告)日：1996-12-31

    申请号：US350835

    申请日：1994-12-07

    申请人： Walter E. Sande ,  Karl D. Sears

    发明人： Walter E. Sande ,  Karl D. Sears

    IPC分类号： D21C5/02

    CPC分类号： D21C5/02 ,  Y02W30/648

    摘要： This invention relates generally to a method for extracting lignosulfonate for the manufacture of vanillin and other specialty chemicals. Specifically, the invention relates to a method for recovering lignosulfonates from newsprint comprising the steps of:a) converting newsprint to a crumb pulp comprising of from about 20% to about 50% crumb pulp fiber solids by weight on an oven dry basis and the remainder water;b) cooking the crumb pulp in a medium comprising crumb pulp and cooking acid solution selected from the group consisting of sodium bisulfite, magnesium bisulfite, ammonium bisulfite, calcium bisulfite or mixtures thereof wherein the weight ratio of cooking acid solution to the crumb pulp fiber is from about 3 to about 6 for sufficient time and sufficient temperature and pressure for lignosulfonate removal;c) separating the crumb pulp fiber from the spent sulfite liquor; andd) recovering the lignosulfonates from the spent sulfite liquor.

    摘要翻译： 本发明一般涉及用于制备香草醛和其它特种化学品的木素磺酸盐提取方法。 具体地说，本发明涉及从新闻纸回收木质素磺酸盐的方法，包括以下步骤：a）将新闻纸转化成碎纸浆，其包含按烘干干重计约20％至约50％ 水; b）在包含碎浆和选自亚硫酸氢钠，亚硫酸氢钠，亚硫酸氢铵，亚硫酸氢钠或其混合物的混合物中的碎屑浆和烹饪酸溶液的培养基中烹饪碎屑，其中烹饪酸溶液与碎浆纤维的重量比为 约3至约6，足够的时间和足够的木质素磺酸盐去除的温度和压力; c）将碎纸浆纤维与废亚硫酸盐液分离; 和d）从废亚硫酸盐液中回收木质素磺酸盐。

    Method of softening pulp and pulp products produced by same
    2.
    发明授权
    Method of softening pulp and pulp products produced by same 失效
    软化纸浆和纸浆产品的方法

    公开(公告)号：US5776308A

    公开(公告)日：1998-07-07

    申请号：US731142

    申请日：1996-10-10

    申请人： Karl D. Sears ,  Peter R. Abitz

    发明人： Karl D. Sears ,  Peter R. Abitz

    IPC分类号： D21C9/00 ,  D21H17/04 ,  D21H17/06 ,  D21H17/14 ,  D21H21/22

    CPC分类号： D21H21/22 ,  D21C9/005 ,  D21H17/06 ,  D21H17/14

    摘要： Wood pulp sheets treated with triacetin and other compounds, or solutions or emulsions of same, having increased softness while maintaining absorbency, and methods for producing same. More particularly, the invention relates to the treatment of wood pulp useful for making a fluff pulp using a softening agent including alkyl ethers or aryl ethers and esters of low molecular weight glycols, such as triacetin, propylene glycol diacetate and 2-phenoxyethanol.

    摘要翻译： 用甘油三乙酸酯和其他化合物处理的木浆片，或其溶液或乳液，具有增强的柔软度同时保持吸收性，以及其制备方法。 更具体地说，本发明涉及用于制造绒毛浆的木浆的处理，所述木浆使用包括烷基醚或芳基醚的软化剂和低分子量二醇的酯，例如三醋精，丙二醇二乙酸酯和2-苯氧基乙醇。

    Alkylene oxide modified hardwood cellulose
    4.
    发明授权
    Alkylene oxide modified hardwood cellulose 有权
    氧化烯改性硬木纤维素

    公开(公告)号：US06835828B2

    公开(公告)日：2004-12-28

    申请号：US10616045

    申请日：2003-07-08

    申请人： Karl D. Sears ,  Wendy Hendricks

    发明人： Karl D. Sears ,  Wendy Hendricks

    IPC分类号： C08B306

    CPC分类号： C08B13/00

    摘要： Disclosed is a process for producing reactive cellulose for use in the manufacture of cellulose acetate having superior clarity by mercerizing hardwood cellulosic material and reacting it with an hydroxyalkylating agent to a degree of molar substitution ranging from 0.04 to 0.15 per anhydroglucose unit in cellulose.

    摘要翻译： 公开了一种制备用于制造具有优异透明度的纤维素乙酸酯的反应性纤维素的方法，其通过丝光硬木纤维素材料并使其与羟烷基化剂反应至纤维素中每个脱水葡萄糖单元的摩尔取代度为0.04至0.15。

    Cross-linked pulp sheet
    6.
    发明授权
    Cross-linked pulp sheet 有权
    交联纸浆

    公开(公告)号：US07288167B2

    公开(公告)日：2007-10-30

    申请号：US11332559

    申请日：2006-01-13

    申请人： Karl D. Sears ,  Michael E. Haeussler ,  Tina R. Solomon

    发明人： Karl D. Sears ,  Michael E. Haeussler ,  Tina R. Solomon

    IPC分类号： D21H17/15 ,  D21H21/22 ,  D21H23/02 ,  D21H16/20 ,  D06M13/192

    CPC分类号： D21C9/005 ,  D21H11/20 ,  D21H17/37

    摘要： The invention provides a method for preparing cross-linked cellulosic fibers. A sheet of mercerized cellulosic fibers with a purity of at least 95% is treated with a solution containing a carboxylic acid cross-linking agent. The treated cellulosic fibrous material is dried and cured in sheet form to promote intrafiber cross-linking. Cross-linked fiber products produced are economic and possess good porosity, bulking characteristics, wet resiliency, absorption characteristics, low fines, low nits and low knots. The invention also includes blended cellulose compositions comprising a minor proportion of cross-linked mercerized cellulosic fibers and a major proportion of other cellulosic fibers. The invention further provides individualized, chemically cross-linked mercerized cellulosic fibers of high purity.

    摘要翻译： 本发明提供了制备交联纤维素纤维的方法。 用含有羧酸交联剂的溶液处理纯度为至少95％的丝光纤维素纤维片。 经处理的纤维素纤维材料被干燥并以片状固化以促进纤维内交联。 生产的交联纤维产品是经济的，具有良好的孔隙率，膨胀特性，湿回弹性，吸收特性，低细粉，低its和低结。 本发明还包括包含少量交联丝光纤维素纤维和主要比例的其它纤维素纤维的混合纤维素组合物。 本发明进一步提供了高纯度的个体化的，化学交联的丝光纤维素纤维。

    Crossed-linked pulp and method of making same
    7.
    发明授权
    Crossed-linked pulp and method of making same 有权
    交联纸浆及其制造方法

    公开(公告)号：US06620293B2

    公开(公告)日：2003-09-16

    申请号：US09832634

    申请日：2001-04-11

    申请人： Karl D. Sears ,  Michael E. Haeussler ,  Tina R. Solomon

    发明人： Karl D. Sears ,  Michael E. Haeussler ,  Tina R. Solomon

    IPC分类号： D21F1100

    CPC分类号： D21C9/005 ,  D21H11/20 ,  D21H17/37

    摘要： The invention provides a method for preparing cross-linked cellulosic fibers. A sheet of mercerized cellulosic fibers with a purity of at least 95% is treated with a solution containing carboxylic acid cross-linking agents. The treated cellulosic fibrous material is dried and cured in sheet form to promote intrafiber cross-linking. Cross-linked fiber products of this method, which is economic, that possess good porosity, bulking characteristics, wet resiliency, and absorption, low fines, low nits, and low knots, are also disclosed. This invention also includes a blended cellulose composition comprising a minor proportion of cellulose fibers having been similarly cross-linked with carboxylic acids and a major proportion of other cellulose fibers. This invention further provides individualized, chemically cross-linked cellulosic fibers comprising mercerized individualized cellulosic fibers with a purity of at least 95%, cross-linked with carboxylic acids. Such cellulosic fibers have excellent fluid acquisition times in absorbent structures.

    摘要翻译： 本发明提供了制备交联纤维素纤维的方法。 用含有羧酸交联剂的溶液处理纯度为至少95％的丝光纤维素纤维片。 经处理的纤维素纤维材料被干燥并以片状固化以促进纤维内交联。 还公开了具有良好孔隙率，膨胀特性，湿回弹性和吸收性，低微细，低尼特和低结的经济性的该方法的交联纤维产品。本发明还包括一种混合纤维素组合物，其包含 已经类似地与羧酸和主要部分的其它纤维素纤维交联的纤维素纤维的较小比例。本发明还提供了包含纯度为至少95％的丝光化个体化纤维素纤维的个体化的化学交联的纤维素纤维， 与羧酸交联。 这种纤维素纤维在吸收结构中具有优异的流体采集时间。

    Nitrite-oxidized lignosulfonates and method of making the same and use of these as dispersants
    10.
    发明授权
    Nitrite-oxidized lignosulfonates and method of making the same and use of these as dispersants 失效
    亚硝酸盐氧化木质素磺酸盐及其制备方法，并将其用作分散剂

    公开(公告)号：US5169931A

    公开(公告)日：1992-12-08

    申请号：US704448

    申请日：1991-05-23

    申请人： Karl D. Sears ,  Gerald J. Byrd

    发明人： Karl D. Sears ,  Gerald J. Byrd

    IPC分类号： B01F17/50 ,  B01F17/00 ,  C04B24/18 ,  C07C309/41

    CPC分类号： C08H6/00 ,  B01F17/0057 ,  C04B24/18

    摘要： A nitrite-oxidized base lignosulfonate and a method of making the same; the method comprises providing a base lignosulfonate material and oxidizing it in the presence of sodium nitrite under alkaline conditions at a temperature greater than about 100.degree. C.; useful products of same are dispersants for dyes and dispersants for setting materials e.g. gypsum.

    摘要翻译： 亚硝酸盐氧化碱性木质素磺酸盐及其制备方法; 该方法包括在碱性条件下，在大于约100℃的温度下，在亚硝酸钠的存在下，提供碱性木质素磺酸盐物质并对其进行氧化。 有用的产品是用于染料和分散剂的分散剂，用于固化材料例如 石膏