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    Addition of endothermic fire retardants to provide near neutral pH pulp fiber webs
    2.
    发明授权
    Addition of endothermic fire retardants to provide near neutral pH pulp fiber webs 有权
    添加吸热阻燃剂以提供接近中性的pH纸浆纤维网

    公开(公告)号：US08871058B2

    公开(公告)日：2014-10-28

    申请号：US13906914

    申请日：2013-05-31

    申请人： International Paper Company

    发明人： James E. Sealey ,  Brent A. Fields

    IPC分类号： D21H17/65 ,  D21H17/66 ,  D21H17/68 ,  D21H21/34 ,  C09K21/00 ,  C09K21/04 ,  D21H17/03 ,  D21H21/24 ,  D21H17/63

    CPC分类号： D21H21/34 ,  D21H17/03 ,  D21H17/63 ,  D21H17/66 ,  D21H21/24

    摘要： A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.

    摘要翻译： 使用约10或更低的pH值的吸水性阻燃剂水溶液处理其卡巴数小于约130的至少部分脱木质的纸浆纤维网的方法。 经处理的纸浆纤维网具有约5至约9的近中性pH，并且每吨纸浆纤维网用至少约20磅的吸热阻燃剂处理，其中至少约5％ 在形成纸浆纤维网之前的一点加入吸热阻燃剂。 也是具有接近中性pH的耐火纸浆纤维网。

    Process for sizing paper with anionic hydrophobic sizing agents and cationic retention aids
    7.
    发明授权
    Process for sizing paper with anionic hydrophobic sizing agents and cationic retention aids 失效
    用阴离子疏水施胶剂和阳离子助留剂调整纸张的方法

    公开(公告)号：US4956049A

    公开(公告)日：1990-09-11

    申请号：US372217

    申请日：1989-06-23

    申请人： Michael Bernheim ,  Dieter Strasilla ,  Bernardo De Sousa ,  Peter Rohringer

    发明人： Michael Bernheim ,  Dieter Strasilla ,  Bernardo De Sousa ,  Peter Rohringer

    IPC分类号： C08L3/00 ,  C07C275/34 ,  C07C275/42 ,  C07C309/51 ,  C08G73/00 ,  C08G73/02 ,  C08L3/04 ,  C08L77/00 ,  D21H17/03 ,  D21H17/46

    CPC分类号： D21H17/03 ,  C07C275/34 ,  C07C275/42 ,  C07C309/51

    摘要： Sizing agents, some of which are known compounds and some of which are novel aromatic compounds which contain in the aromatic nucleus a single hydrophobic substituent containing at least 5 carbon atoms and at least one anionic group, said hydrophobic substituent being linked to the aromatic nucleus through an ester, amide, urethane or urea bridge, with the CO group of ester and amide bridges being attached to the hydrophobic radical and a methylene group being optionally present between said bridges and the aromatic nucleus, are particularly suitable, together with commercially available retention aids, for use in a process for the mass sizing of paper or cardboard or for the surface sizing of paper.

    摘要翻译： 上浆剂，其中一些是已知的化合物，其中一些是新颖的芳族化合物，其在芳香核中含有单个含有至少5个碳原子的疏水性取代基和至少一个阴离子基团，所述疏水性取代基通过芳香族核连接 酯，酰胺，氨基甲酸酯或尿素桥，酯基和酰胺桥的CO基团连接到疏水基团上，并且任选地存在于所述桥和芳香核之间的亚甲基基团，特别适用于市售的助留剂 ，用于纸张或纸板的大规模尺寸或纸张表面尺寸的过程。

    Method and products for sizing paper and similar materials
    8.
    发明授权
    Method and products for sizing paper and similar materials 失效
    纸张和类似材料尺寸的方法和产品

    公开(公告)号：US4857149A

    公开(公告)日：1989-08-15

    申请号：US125787

    申请日：1987-11-20

    申请人： George T. Tiedeman ,  Jerome M. Gess

    发明人： George T. Tiedeman ,  Jerome M. Gess

    IPC分类号： D21H17/03 ,  D21H17/55 ,  D21H23/76

    CPC分类号： D21H23/765 ,  D21H17/03 ,  D21H17/55

    摘要： The invention is a 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.degree. 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 redistribtution of sizing from the attached globules to unfilled sites where an anchoring point is present. Alkyl and alkenyl substituted catechols, beta-diones, hydroxamic acids and imides are among the new classes of sizing materials disclosed.

    摘要翻译： 本发明是一种使纸张尺寸调整的方法，特别是在中性至碱性条件下至少高达10.5的纸张的方法。 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。 在造纸机的干燥部中会发生尺寸变化，这可能是通过气相重新分配从连接的小球到施加固定点的未填充部位。 烷基和烯基取代的邻苯二酚，β-二酮，异羟肟酸和酰亚胺是公开的新型施胶材料之一。