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6 条记录 (耗时 0.016 秒)

    Method and products for sizing paper and similar materials
    1.
    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。

    Phenol formaldehyde resoles and laminates
    2.
    发明授权
    Phenol formaldehyde resoles and laminates 失效
    苯酚甲醛和层压板

    公开(公告)号：US4264671A

    公开(公告)日：1981-04-28

    申请号：US930262

    申请日：1978-08-02

    申请人： M. Frank Gillern ,  Katashi Oita ,  Robert J. Teng ,  George T. Tiedeman

    发明人： M. Frank Gillern ,  Katashi Oita ,  Robert J. Teng ,  George T. Tiedeman

    IPC分类号： C08G8/10 ,  C08J5/24 ,  C08L61/06 ,  C08L61/10 ,  B32B5/06

    CPC分类号： C08J5/24 ,  C08G8/10 ,  C08L61/06 ,  C08J2361/06 ,  Y10S428/921 ,  Y10T428/24994 ,  Y10T428/24995 ,  Y10T428/31627 ,  Y10T442/67

    摘要： Low-color or white, dilutable condensation products of formaldehyde and phenol in molar ratios of 1.9-5.0:1, characterized by carbon-13 nuclear magnetic resonance spectra as having at least about 30 molar percent of the total formaldehyde content of the resin bound to phenol nuclei in benzyl formal groups of the form Ph--(CH.sub.2 O).sub.n --CH.sub.2 OH wherein n.gtoreq.1, and less than about 40 molar percent of the total formaldehyde content of the resin bound to phenol nuclei in methylol groups of the form Ph--CH.sub.2 OH, wherein Ph is a phenol nucleus. Phenol, water and an alkaline catalyst, limited to 0.5-2.2 moles of catalyst per 100 moles of phenol and preferably lithium carbonate, are mixed with formaldehyde at 1.9-5.0 formaldehyde to phenol ratios. The reaction mixture is heated at a uniform rate over 1 hour to reflux temperature and refluxed until a viscosity of 400-500 centipoise at 50-75% solids is attained. The mixture is cooled to 50.degree. C. and neutralized with acid to a pH of 3-7, preferably with citric acid. The resulting resin may be employed, without solvent dilution, to make resin-fiberglass laminates that have strengths comparable to polyester or epoxy laminates. The laminates have exceptional fire resistance and low smoke evolution when exposed to flame.

    摘要翻译： 低分子或白色可稀释的甲醛和苯酚的缩合产物的摩尔比为1.9-5.0:1，其特征在于碳-13核磁共振谱具有至少约30摩尔％的树脂的总甲醛含量， 形式为Ph-（CH 2 O）n-CH 2 OH的苯甲醛形式的苯酚核，其中n> / = 1，小于约40摩尔％的结合于苯酚核的树脂的总甲醛含量为Ph -CH 2 OH，其中Ph是酚核。 苯酚，水和碱性催化剂，每100摩尔苯酚，优选碳酸锂限制为0.5-2.2摩尔催化剂，与甲醛以1.9-5.0甲醛与苯酚的比例混合。 将反应混合物在1小时内以均匀速率加热至回流温度并回流至达到50-75％固体的粘度为400-500厘泊。 将混合物冷却至50℃，用酸中和至pH为3-7，优选用柠檬酸。 所得到的树脂可以在没有溶剂稀释的情况下用于制备具有与聚酯或环氧层压材料相当的强度的树脂 - 玻璃纤维层压板。 层压板具有特殊的耐火性和暴露于火焰时的低烟雾释放。

    Polyether-reinforced fiber-based materials
    4.
    发明授权
    Polyether-reinforced fiber-based materials 失效
    聚醚增强纤维基材料

    公开(公告)号：US5545449A

    公开(公告)日：1996-08-13

    申请号：US850980

    申请日：1992-03-12

    申请人： George T. Tiedeman

    发明人： George T. Tiedeman

    IPC分类号： B32B5/26 ,  D21H17/52 ,  D21H17/53 ,  D21H17/57 ,  D21H25/06 ,  D21H27/30 ,  B32B27/10 ,  B32B29/08

    CPC分类号： B32B5/26 ,  D21H17/52 ,  D21H17/53 ,  D21H17/57 ,  D21H25/06 ,  D21H27/30 ,  Y10T428/1303 ,  Y10T428/1362 ,  Y10T428/1366 ,  Y10T428/24694 ,  Y10T428/31511 ,  Y10T428/31515 ,  Y10T428/31978 ,  Y10T428/31982 ,  Y10T442/659

    摘要： Polyether-reinforced fiber-based materials, and methods for their manufacture, are disclosed. A representative material is a sheetlike ply having on one or both faces thereof a polyether-impregnated stratum extending depthwise into the ply thickness dimension no greater than about one-half the ply thickness dimension so as to leave a portion of the ply thickness dimension unimpregnated with polyether. The materials can comprise plural superposed plies wherein at least one ply has at least one polyether-impregnated stratum, such as polyether-reinforced corrugated paperboard. The polyether-reinforced materials have excellent compression strength and foldability. Each polyether-reinforced stratum is made by controllably applying a low-viscosity liquid mixture of an epoxy resin and a hardener, wherein the epoxy resin is substantially non-prepolymerized, to a fibrous web surface, then curing the resin mixture. The polyether-reinforced materials can be folded after curing and are useful for making cartons and other products.

    摘要翻译： 公开了聚醚增强纤维基材料及其制造方法。 代表性材料是片状层，其一面或两面具有聚醚浸渍层，其深度方向延伸到层厚度尺寸不大于层厚度尺寸的大约二分之一，以便使一部分层厚度尺寸未被浸渍 聚醚 材料可以包括多个重叠的层，其中至少一层具有至少一个聚醚浸渍的层，例如聚醚增强的瓦楞纸板。 聚醚增强材料具有优异的抗压强度和折叠性。 每个聚醚增强层通过可控地将环氧树脂和固化剂的低粘度液体混合物（其中环氧树脂基本上未预聚合）施加到纤维网表面，然后固化树脂混合物。 聚醚增强材料可以在固化后折叠，可用于制造纸箱和其他产品。

    Method for increasing bleed resistance of preserved plants and products of the method
    5.
    发明授权
    Method for increasing bleed resistance of preserved plants and products of the method 失效
    提高保存植物和产品的抗渗性的方法

    公开(公告)号：US4828890A

    公开(公告)日：1989-05-09

    申请号：US182674

    申请日：1988-04-18

    申请人： George T. Tiedeman ,  David W. Park ,  Robert H. Young

    发明人： George T. Tiedeman ,  David W. Park ,  Robert H. Young

    IPC分类号： A01N3/00 ,  A01N3/02

    CPC分类号： A01N3/00

    摘要： The present invention is a method of preserving plants which achieves reduced bleeding of the preservative material when the plants are subjected to elevated humidity conditions. The method comprises perfusing the plants with an aqueous preservative composition in which the preservative is primarily an alkylene oxide oligomer, 1,3-butanediol, or 1,4-butanediol. Preferred alkylene oxide oligomers are di- and polyethylene glycols in the molecular weight range of about 200-1500 and di- and polypropylene glycols with an average molecular weight below about 450. The preferred materials may be used with lesser amounts of secondary humectant materials selected from glycerol, ethylene glycol, propylene glycol, magnesium chloride or magnesium bromide hexahydrate, and water soluble cycle phosphonate esters. Plants are conventionally treated by perfusing an aqeous treatment solution into the vascular system through a cut stem or other incision which exposes the xylem. Treatment is carried out at a temperature in the range of 20.degree.-50.degree. C. at a relative humidity in the range of about 20%-80% for a period time up to about 14 days.