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    • 84. 发明授权
    • Adhesive compositions for corrugated boxes
    • 瓦楞纸箱用粘合剂组合物
    • US06056816A
    • 2000-05-02
    • US71880
    • 1998-05-04
    • Rodger Graham HagensMichael McDonaldWilliam Millard
    • Rodger Graham HagensMichael McDonaldWilliam Millard
    • C09J103/00C09J103/02
    • C09J103/02C09J103/00
    • Novel starch-silicate adhesive compositions are disclosed which are of particular advantage in the manufacture of corrugated board. By the controlled combination of starch, alkali silicate and, optionally, caustic soda and borax it has been found possible to produce useable adhesives having much higher levels of solids content than conventional starch-based adhesives, thereby allowing for lowered energy costs in use of the adhesive formulation to manufacture boxboard, as well as improved product quality. The formulation of starch-silicate adhesives according to the invention allows viscosity, rheological characteristics--in particular gelation temperature--and the speed of "green-bond" formation to be controlled and adapted to the requirements of modern high-speed corrugating equipment.
    • 公开了新颖的淀粉 - 硅酸盐粘合剂组合物,其在瓦楞纸板的制造中是特别有利的。 通过淀粉,碱性硅酸盐和任选的苛性钠和硼砂的控制组合,已经发现可以生产可用的粘合剂,其具有比常规的淀粉基粘合剂高得多的固体含量,从而允许使用 制造纸板的粘合剂配方,以及提高产品质量。 根据本发明的淀粉 - 硅酸盐粘合剂的配方允许粘度,流变特性,特别是凝胶化温度,以及“绿色粘结”形成的速度被控制并适应现代高速波纹设备的要求。
    • 85. 发明授权
    • Maltodextrin-based adhesives
    • 麦芽糖糊精类粘合剂
    • US5932639A
    • 1999-08-03
    • US841555
    • 1997-04-30
    • James L. EdenYong-Cheng ShiRussell J. NesiewiczJoseph Wieczorek, Jr.
    • James L. EdenYong-Cheng ShiRussell J. NesiewiczJoseph Wieczorek, Jr.
    • C08B30/12C08L3/00C08L23/08C09J103/00C09J131/04C12P19/14C08L3/02C08B31/00
    • C09J103/00C08B30/12C09J131/04C12P19/14C08L23/08C08L3/00
    • The present invention is directed to remoistenable and non-remoistenable adhesives which contain at least about 50 wt % of a maltodextrin syrup having a reducing sugar content of about 5-19 dextrose equivalent and solids content of about 60-80 % water, and an effective amount of other conventional adhesive additives. When the adhesive is a remoistenable adhesive, a chemically derivatized starch having an amylose content of 40 % or less and a D.S. of about 0.01 to less than about 0.50 is used. A preferred remoistenable adhesive also contains polyvinyl acetate and/or ethylene vinyl acetate in an amount from about 15-90 wt. % The maltodextrin syrup is prepared from a converted or a non-converted, chemically derivatized or underivatized granular starch, by a high solids, single phase enzyme conversion process. When derivatized, the maltodextrin has (i) substituents in an amount sufficient to provide a degree of substitution between greater than about 0.01 and less than about 0.50. Some of the chemically-derivatized maltodextrins have a polymodal molecular weight distribution with one peak between about 630-1600 daltons and at least one other peak between about 1600-2,500,000 daltons.
    • 本发明涉及可再致密和不可再粘合的粘合剂,其包含至少约50重量%的具有约5-19葡萄糖当量的还原糖含量和约60-80%水的固体含量的麦芽糖糊精糖浆,并且有效 其他常规粘合剂添加剂的量。 当粘合剂是可再粘合的粘合剂时,使用直链淀粉含量为40%以下且D.S.为约0.01至小于约0.50的化学衍生淀粉。 优选的可再粘合粘合剂还含有约15-90重量%的聚乙酸乙烯酯和/或乙烯 - 乙酸乙烯酯。 %通过高固体,单相酶转化方法,由转化的或未转化的,化学衍生的或未衍生的颗粒淀粉制备麦芽糖糊精糖浆。 当衍生化时,麦芽糖糊精具有(i)足以提供大于约0.01至小于约0.50的取代度的量的取代基。 一些化学衍生的麦芽糖糊精具有多模态分子量分布,在约630-1600道尔顿之间具有一个峰,在约1600-2,500,000道尔顿之间具有至少一个其它峰。