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1. 发明申请

WO1986004621A1 CATIONIC CELLULOSE PRODUCT AND METHOD FOR ITS PREPARATION 审中-公开
标题翻译：阳离子纤维素产品及其制备方法
公开(公告)号：WO1986004621A1
公开(公告)日：1986-08-14
申请号：PCT/US1985000205
申请日：1985-02-11
申请人： WEYERHAEUSER COMPANY
发明人： WEYERHAEUSER COMPANY , GESS, Jerome, Murray , GAINES, Robert, Charles , MARDING, Margot, Jean
IPC分类号： D21C09/00
CPC分类号： C08B11/145 , D21C9/005 , D21C9/1026 , D21H11/22
摘要： 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 polymer 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 polymer 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 as shown in figure 1. 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：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聚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。在漂白过程的较后碱性阶段之一中添加聚合物是实用的：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。该产品显示出大大改善了酸和其它阴离子染料的保留性，如图1所示。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。

2. 发明申请

WO1988002047A1 METHOD AND PRODUCTS FOR SIZING PAPER AND SIMILAR MATERIALS 审中-公开
标题翻译：尺寸纸和类似材料的方法和产品
公开(公告)号：WO1988002047A1
公开(公告)日：1988-03-24
申请号：PCT/US1987002200
申请日：1987-09-04
申请人： WEYERHAEUSER COMPANY
发明人： WEYERHAEUSER COMPANY , TIEDEMAN, George, Trent , GESS, Jerome, Murray
IPC分类号： D21H03/02
CPC分类号： D21H23/765 , D21H17/03 , D21H17/55
摘要： Method of sizing paper and, in particular, paper made under neutral to alkaline conditions at least as high as 10.5. The papermaking stock is first treated with a polycationic material to provide sizing receptive sites uniformly distributed over the fiber surface. The presence of the anchoring points is critical to the later redistribution of the sizing material in the dryer section of the paper machine. The sizing material is then added to the slurry. This is then brought down onto the fibers by addition of a small amount of a size precipitant such as alum. The sizing molecule should have a hydrophilic portion with two hetero atoms forming a bidentate analog structure. This must have a pK in water of 6.0 or higher and a vapor pressure preferably at least 0.0006 mm Hg at 60 DEG C. The polycationic material provides anchoring/orienting sites on the fiber to which the small globules of sizing attach when the emulsion is broken by the precipitant. Sizing will develop in the dryer section of the paper machine, presumably by vapor phase redistribution of sizing from the attached globules to unfilled sites where an anchoring point is present. Alkyl and alkenyl substituted catechols, beta-diones, hydrozamic acids and imides are among the new classes of sizing materials disclosed.
摘要翻译：纸张尺寸的方法，特别是在中性至碱性条件下至少高达10.5的纸张。首先用聚阳离子材料处理造纸原料，以提供均匀分布在纤维表面上的施胶接收位点。锚定点的存在对于造纸机的干燥器部分中的上浆材料的后续再分配至关重要。然后将上浆材料加入浆料中。然后通过加入少量的大小沉淀剂（例如明矾）将其还原到纤维上。上浆分子应具有亲水部分，其中两个杂原子形成双齿模拟结构。在60℃或以上的水中必须具有pK，在60℃下蒸气压优选至少为0.0006mmHg。聚阳离子材料在乳液破碎时附着的小尺寸颗粒附着的纤维上提供锚定/取向位点由沉淀物。造纸机的烘干部分会发生尺寸变化，可能是通过气相重新分配尺寸从连接的小球到存在锚定点的未填充部位。烷基和链烯基取代的邻苯二酚，β-二酮，氢化唑和酰亚胺是公开的新型施胶材料之一。

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