Method for preparation of cationic cellulose
    12.
    发明授权
    Method for preparation of cationic cellulose 失效
    阳离子纤维素的制备方法

    公开(公告)号:US4505775A

    公开(公告)日:1985-03-19

    申请号:US507366

    申请日:1983-06-24

    摘要: The invention is a fibrous, cationic cellulose pulp product and the method for preparing it. A water suspension of cellulosic fiber is treated under alkaline conditions with a condensate of epichlorohydrin and dimethylamine. Up to 30 molar percent of the DMA may be replaced by a crosslinking agent such as ammonia or a lower aliphatic diamine. The process may be carried out at room or elevated temperatures. It is practical to add the condensate at one of the later alkaline stages of a bleaching process; e.g., an alkaline extraction or peroxide stage. This is most preferably done later than any chlorination or hypochlorite stages. The product shows greatly improved retention of acid and other anionic dyes. It also shows superior retention of some pigments and latices without the need for other cationic aids. In some cases a small amount of alum appears to have a synergistic retention effect with the cationic pulp product when used with titanium dioxide and certain anionic latices.

    摘要翻译: 本发明是纤维状阳离子纤维素纸浆制品及其制备方法。 在碱性条件下用表氯醇和二甲胺的缩合物处理纤维素纤维的水悬浮液。 高达30摩尔%的DMA可以由交联剂如氨或低级脂族二胺代替。 该方法可以在室温或高温下进行。 在漂白过程的后期碱性阶段添加冷凝物是实用的; 例如碱性提取或过氧化物阶段。 这最好比任何氯化或次氯酸盐阶段晚。 该产品显着改善了酸和其他阴离子染料的保留性。 它还显示出一些颜料和胶乳的优异保留性,而不需要其它阳离子助剂。 在一些情况下,当与二氧化钛和某些阴离子胶乳一起使用时,少量的明矾似乎与阳离子纸浆产品具有协同的保留效果。

    DECORATIVE PAPER WITH A HIGH OPACITY
    16.
    发明申请
    DECORATIVE PAPER WITH A HIGH OPACITY 有权
    高档装饰纸

    公开(公告)号:US20030089476A1

    公开(公告)日:2003-05-15

    申请号:US10006318

    申请日:2001-11-13

    发明人: Hartmut Schulz

    IPC分类号: D21H017/73

    摘要: A decorative base paper for decorative coating materials contains a pigment mixture of titanium dioxide and talc, wherein the talc has a particle size distribution D50 of less than approximately 3.0 nullm, and both the decorative base paper and the decorative paper have a high capacity.

    摘要翻译: 用于装饰涂料的装饰性原纸含有二氧化钛和滑石的颜料混合物,其中滑石的粒度分布D50小于约3.0μm,装饰性原纸和装饰纸都具有高容量。

    Latex treated cationic cellulose product and method for its preparation
    18.
    发明授权
    Latex treated cationic cellulose product and method for its preparation 失效
    乳胶处理的阳离子纤维素产品及其制备方法

    公开(公告)号:US4584357A

    公开(公告)日:1986-04-22

    申请号:US622527

    申请日:1984-06-20

    申请人: Margot J. Harding

    发明人: Margot J. Harding

    摘要: The invention is a fibrous cellulosic product, containing a uniformly dispersed polymeric material which has been deposited in an aqueous suspension from an anionic latex, and the method for its manufacture. Cellulosic fiber is first cationized by treating it in an aqueous suspension with the condensation product of epichlorohydrin and dimethylamine. Up to 30% of the dimethylamine may be replaced with a crosslinking agent which can be ammonia or an aliphatic diamine such as hexamethylene diamine. The cationized fiber, with or without small quantities of alum, will effectively retain a wide variety of anionic latices when treated in an aqueous environment.

    摘要翻译: 本发明是一种纤维状纤维素产品,其包含已经从阴离子胶乳沉积在水性悬浮液中的均匀分散的聚合物材料及其制造方法。 纤维素纤维首先通过用环氧氯丙烷和二甲胺的缩合产物在水性悬浮液中处理而阳离子化。 高达30%的二甲基胺可以用可以是氨或六亚甲基二胺等脂肪族二胺的交联剂代替。 具有或不具有少量明矾的阳离子化纤维在水性环境中处理时将有效地保留多种阴离子胶乳。