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    • 51. 发明授权
      US4105824A Starch-dextrine-polyacrylamide adhesive and tape 失效
    • Starch-dextrine-polyacrylamide adhesive and tape
    • 淀粉糊精 - 聚丙烯酰胺粘合剂和胶带
    • US4105824A
    • 1978-08-08
    • US784460
    • 1977-04-04
    • Robert W. Monte
    • Robert W. Monte
    • C09J7/02 , C09J7/04 , C09J103/00 , C09J103/02 , C09J133/04 , C08L3/12
    • C09J7/042 , C09J103/00 , Y10T428/2865 , Y10T428/31783 , Y10T428/31982
    • Adhesive composition comprising starch, dextrine and a polyacrylamide. The composition is carried by water; but, when the composition is applied to a substrate, the water is evaporated to produce a water activatable adhesive. Thus, the composition is suitable for application to a paper backing to form an adhesive tape.Method of preparing the adhesive from a dry polyacrylamide starting material includes the steps of first dissolving the dextrine and dry polyacrylamide in water and allowing the dextrine and polyacrylamide to mix. The starch is then added to that mixture. Preferably, the dextrine and polyacrylamide are mixed for at least a half-hour before the starch is added. To prevent the particles of dextrine and polyacrylamide from agglomerating together, it has been found advantageous to mix the dextrine and polyacrylamide in small batches. This step, however, is not critical.It is also possible to utilize an aqueous solution containing dissolved polyacrylamide, (liquid polyacrylamide) as a starting material. In this embodiment, the dextrine, liquid polyacrylamide and starch are added to water in any order to form the adhesive mixture.
    • 包含淀粉，糊精和聚丙烯酰胺的粘合剂组合物。 组合物由水携带; 但是当将组合物施加到基材上时，将水蒸发以产生可水活化的粘合剂。 因此，该组合物适用于纸背衬以形成胶带。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 52. 发明授权
      US3950593A Pregummed remoistenable tape having long open time and short tack time 失效
    • Pregummed remoistenable tape having long open time and short tack time
    • 具有长的开放时间和短的粘着时间的预先接合的可再接续的胶带
    • US3950593A
    • 1976-04-13
    • US344658
    • 1973-03-26
    • William A. Bomball , Thomas G. Swift
    • William A. Bomball , Thomas G. Swift
    • C09J7/04 , C09J103/00 , C09J189/00
    • C09J103/00 , C09J189/005 , C09J7/042 , Y10T428/31775 , Y10T428/31783 , Y10T428/31808
    • A pregummed, remoistenable tape having long open time and short tack time which utilizes adhesive formulations using acid hydrolyzed, derivatized waxy maize starch as a component to replace animal glue in remoistenable pregummed tape formulations. Wet tack strength is equal or better than "all-animal glue" adhesives presently used, especially for short open times. In one embodiment, the major ingredient in the adhesive coating of the pregummed tape comprises waxy maize starch which is first acid-hydrolyzed and then copolymerized with acrylamide monomer using a free radical initiator in an aqueous system.In another second embodiment, acid-hydrolyzed, cyanoethylated waxy maize starch provides the major adhesive ingredient which replaces a substantial portion of the animal glue in the adhesive composition used to coat the pregummed tape. It is also contemplated that substantially all of the animal glue in the new formulation can be replaced for certain applications with a synthetic organic compound such as polyvinyl alcohol.These combination vegetable-animal base adhesives and the vegetable synthetic type adhesives may be used to replace animal glue based adhesives, and provide improved machinability, less odor, easier remoistenability of the pregummed tape under cold room conditions and improved aging.Of the many modified starch combinations tested, on remoistenable pregummed tapes the acid-hydrolyzed, cyanoethylated starch derivative and acid-hydrolyzed, acrylamide-starch graft copolymers performed the best, especially in combination with small amounts of animal glue.
    • 具有长的开放时间和短粘着时间的预先制成的，可重新接合的胶带，其使用粘合剂配方，使用酸水解的衍生的蜡质玉米淀粉作为替代可再粘合的预胶带配方中的动物胶的组分。 湿粘性强度等于或优于目前使用的“全动物胶”粘合剂，特别是在短时间内。 在一个实施方案中，预胶带的粘合剂涂层中的主要成分包括蜡质玉米淀粉，其首先在水性体系中使用自由基引发剂在酸性水解并与丙烯酰胺单体共聚。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 53. 发明授权
      US3859108A Flour based paper size 失效
    • Flour based paper size
    • 基于纸张尺寸
    • US3859108A
    • 1975-01-07
    • US32744473
    • 1973-01-29
    • LAWRENCE PAPER CO
    • WARE FRANKLYN O , HILL ALAN M
    • C09J103/00 , D21H17/28 , C08H7/00
    • D21H17/28 , C08L2666/02 , C09J103/00
    • Internal fiber bonding laying of surface fuzz or fibers, with accompanying improvement in ancillary properties, e.g., improved surface and bursting strengths and printability, is accomplished by sealing the surface and/or body of paper or paperboard with a flour size in which the flour is present therein as a smooth, stable homogeneous colloidal co-solution, substantially free of undissolved fiber, of both the protein and starch fractions of the flour, the protein being present in substantially nondegraded form and the starch being present as a molecular weight reduced starch. The size can be produced by the steps, in either order, of subjecting a corn or other proteinaceous flour slurry to an instantaneous cooking at about 115*-175* C. and reducing the viscosity of the finished size to about 35-70 seconds (Dudley) by subjecting the flour in gelatinized or cooked form to the action of hydrogen peroxide or an enzyme. The resultant sizing material is viscosity stable and can be used to size paper and paperboard with a wet end press, at the breaker stacks, with a size press or water box on the calendar stacks or as an on-themachine coating operation, without the usual build up of scum resulting from separation of protein from the size.
    • 表面绒毛或纤维的内部纤维粘合铺设，伴随着辅助性能的提高，例如改进的表面和破裂强度和可印刷性，是通过用面粉大小密封纸或纸板的表面和/或主体来实现的， 在其中存在作为面粉的蛋白质和淀粉部分基本上不含未溶解的纤维的光滑，稳定的均匀胶体共溶液，蛋白质以基本上未降解的形式存在，淀粉以分子量降低的形式存在 淀粉。 尺寸可以通过以下步骤通过以下步骤以任一顺序制备：使玉米或其它蛋白质粉末浆料在约115-175℃下进行即时蒸煮，并将成品尺寸的粘度降低至约35-70秒（ Dudley）通过使糊状或熟化形式的面粉经受过氧化氢或酶的作用。 所得到的施胶材料是粘度稳定的，并且可以用于在纸张和纸板上用湿式压榨机，在破碎机堆叠处，用压纸机或水箱在日历叠层上或作为机上涂布操作，而不用 通常由大小分离蛋白质造成的浮渣积聚。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 54. 发明授权
      US3836376A Starch-based adhesive compositions 失效
    • Starch-based adhesive compositions
    • 基于淀粉的粘合剂组合物
    • US3836376A
    • 1974-09-17
    • US31154472
    • 1972-12-04
    • OGILVIE FLOUR MILLS CO LTD
    • HAMPTON R , BONNELL B
    • C09J103/00 , C08B25/02
    • C09J103/00 , C08L2666/02
    • A process for preparing and continuously delivering a finished starch-based adhesive composition, containing a gelatinized starch portion and a raw starch protein, to a site of use, such as a corrugating machine. The process includes continuously delivering formula components, including raw starch slurry, water and caustic, to an adjustable metering device by which means the volume of each component is precisely controlled to attain relative proportions of such components corresponding to a desired formula. Controlled volumes of raw starch slurry, water and caustic are delivered to a first mixing zone wherein the ingredients are heated to produce a gelatinized starch mass of relatively stable viscosity. The gelatinized mass is passed to a second mixing zone. A further volume of water is simultaneously forwarded to the second mixing zone. The gelatinized starch and water in the second mixing zone is blended to form a gelatinized starch medium. The gelatinized starch medium is passed from the second mixing to a third mixing zone. Simultaneously, a further volume of raw starch slurry is forwarded to the third mixing zone. The raw starch slurry is commingled with the gelatinized medium so as to intimately combine the two starch fractions - the gelatinized starch becomes a carrier to hold raw starch slurry in suspension thereby forming the finished starch-based adhesive composition. The finished starch-based adhesive is delivered to a container for temporary storage. When necessary there is further adjusting of the volumes through the metering device of one or more of the adhesive components relative to the other volumes thereby altering prior to use the relative proportions in the finished starch-based adhesive composition, to produce a correct formula. The finished starch-based adhesive composition is passed from the container to the site of use.
    • 一种制备并连续地将含有凝胶化淀粉部分和生淀粉蛋白质的成品淀粉基粘合剂组合物连续输送到使用场所如波纹机的方法。 该方法包括将配方组分（包括生淀粉浆，水和苛性碱）连续输送到可调式计量装置，通过该计量装置，每个组分的体积被精确地控制以获得对应于所需公式的这些组分的相对比例。 将生淀粉浆，水和苛性碱的受控体积输送到第一混合区，其中将成分加热以产生相对稳定粘度的糊化淀粉质量。 将糊化的物质送入第二混合区。 另外体积的水同时送到第二混合区。 将第二混合区中的糊化淀粉和水混合以形成糊化淀粉培养基。 糊化的淀粉培养基从第二次混合通过到第三个混合区。 同时，将另外体积的生淀粉浆料送至第三混合区。 将生淀粉浆与凝胶化培养基混合，以使两个淀粉部分紧密结合 - 糊化淀粉成为载体，以将生淀粉浆保持在悬浮液中，从而形成成品淀粉基粘合剂组合物。 将完成的淀粉基粘合剂输送到容器中用于临时储存。 当需要时，通过计量装置进一步调节一个或多个粘合剂组分相对于其它体积的体积，从而在使用成品淀粉基粘合剂组合物中的相对比例之前改变，以产生正确的配方。 完成的淀粉基粘合剂组合物从容器通过到使用地点。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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