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    • 97. 发明申请
    • COMPOSITION FOR INCREASING CELLULOSIC PRODUCT STRENGTH AND METHOD OF INCREASING CELLULOSIC PRODUCT STRENGTH
    • 用于增加纤维素产品强度的组合物和增加细胞产物强度的方法
    • WO2005089175A2
    • 2005-09-29
    • PCT/US2005007828
    • 2005-03-11
    • UNIV PITTSBURGH
    • CARROLL WILLIAM EAMONRENDU CHRISTIAN JEHNBECKMAN ERIC J
    • D21H17/54C08L39/00C08L39/02C09D133/14C09D139/02D21H17/06D21H17/24D21H17/36D21H17/56D21H21/18D21H21/20
    • D21H21/18C08L39/00C08L39/02C08L39/04C08L2312/00C09D133/02C09D133/14C09D139/02D21H17/06D21H17/36D21H17/56D21H21/20C08L2666/26
    • A composition includes water; at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function as described above. The hydrophilic polymer and the saccharide are mixed to form a reaction mixture and reacted to increase the viscosity of the reaction mixture. The reaction is then substantially terminated by reducing the pH of the composition. A method of increasing the strength of a cellulosic pulp product includes the steps of: contacting wet cellulosic pulp with a composition comprising (i) at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function, the hydrophilic polymer and the saccharide of the composition having been reacted in a crosslinking reaction prior to contacting the composition with the cellulosic pulp product to increase the viscosity the composition; and, after contacting the cellulosic pulp with the composition, causing the crosslinking reaction between the hydrophilic polymer and the saccharide of the composition to proceed further.
    • 组合物包括水; 至少一种含有至少两个独立地相同或不同的伯胺基或仲胺基的亲水性聚合物和至少一种含有如上所述的还原性功能的糖。 将亲水性聚合物和糖混合以形成反应混合物并反应以增加反应混合物的粘度。 然后通过降低组合物的pH基本上终止反应。 提高纤维素纸浆产品的强度的方法包括以下步骤:使湿纤维素纸浆与组合物接触,所述组合物包含(i)至少一种亲水性聚合物,所述亲水性聚合物含有至少两个独立地相同或不同的伯胺基或 仲胺基团和至少一种含有可还原功能的糖类,亲水性聚合物和组合物的糖类在使组合物与纤维素纸浆产物接触之前已经在交联反应中反应以增加组合物的粘度; 并且在将纤维素纸浆与组合物接触之后,使亲水性聚合物与组合物的糖类之间的交联反应进一步进行。