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    CROSSLINKED KRAFT PULP COMPOSITIONS AND METHOD
    2.
    发明申请
    CROSSLINKED KRAFT PULP COMPOSITIONS AND METHOD 审中-公开
    交联的牛皮纸浆组合物和方法

    公开(公告)号：WO2017147496A1

    公开(公告)日：2017-08-31

    申请号：PCT/US2017/019457

    申请日：2017-02-24

    申请人： INTERNATIONAL PAPER COMPANY

    发明人： LUO, Mengkui

    IPC分类号： C08H8/00

    CPC分类号： D21C9/005 ,  C08B15/10 ,  C08H8/00 ,  D21C9/1063 ,  D21C9/147 ,  D21C9/18 ,  D21H13/04

    摘要： Pulps in accordance with certain embodiments include crosslinked cellulose fibers and have high brightness, reactivity, and intrinsic viscosity, and therefore can be well suited for use as a precursor in the production of low-color, high-viscosity cellulose derivatives. A method in accordance with the present technology includes forming a pulp from a cellulosic feedstock, bleaching the pulp, crosslinking cellulose fibers within the pulp while the pulp has a high consistency, and drying the pulp. Crosslinking the cellulose fibers can include exposing the fibers to a glycidyl ether crosslinker having two or more glycidyl groups and a molecular weight per epoxide within a range from 140 to 175. Another method in accordance with the present technology includes providing an aqueous suspension of pulp that includes chemical wood pulp fibers that were previously bleached and dried, crosslinking the fibers with such a glycidal ether crosslinker, and drying the pulp.

    摘要翻译： 根据某些实施方案的纸浆包括交联纤维素纤维并具有高亮度，反应性和特性粘度，因此可以非常适合用作生产低色度， 粘度纤维素衍生物 根据本技术的方法包括由纤维素原料形成纸浆，漂白纸浆，在纸浆具有高稠度的同时在纸浆内交联纤维素纤维，并干燥纸浆。 交联纤维素纤维可以包括将纤维暴露于具有两个或更多个缩水甘油基并且每个环氧化物的分子量在140-175范围内的缩水甘油醚交联剂。根据本技术的另一种方法包括提供纸浆的含水悬浮液， 包括先前漂白和干燥的化学木浆纤维，用这种糖基醚交联剂交联纤维并干燥纸浆。