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    • 3. 发明授权
    • Chemically derived maltodextrins
    • 化学衍生的麦芽糖糊精
    • US06096524A
    • 2000-08-01
    • US78766
    • 1998-05-14
    • Yong-Cheng ShiJames L. EdenJames J. Kasica
    • Yong-Cheng ShiJames L. EdenJames J. Kasica
    • C08B31/04C08B31/12C09J103/02C09J103/06C12P19/14
    • C08B31/04C08B31/12C09J103/02C09J103/06C12P19/14
    • High solids maltodextrin syrups, some of which are useful as the base for remoistenable adhesives, are prepared by a high solids alpha amylase enzyme conversion process. They are characterized by their high solids content (at least 55 wt. %) and light color. A granular chemically derivatized, optionally converted, starch having a degree of substitution of greater than about 0.01 and less than about 0.5 is used as the starting material. The maltodextrins have a reducing sugar content of about 5-19 dextrose equivalent and a distinct polymodal molecular weight distribution. When a granular highly esterified starch (D.S. of 0.5-1.8) is used as the starting material in the high solids process, the resulting enzyme-converted, esterified maltodextrins are characterized by their improved water dispersibility.
    • 高固体麦芽糖糊精糖浆,其中一些可用作可再次接合的粘合剂的基质,通过高固体含量的α淀粉酶转化方法制备。 它们的特征在于其高固体含量(至少55重量%)和浅色。 使用具有大于约0.01且小于约0.5的取代度的粒状化学衍生的,任选转化的淀粉作为起始原料。 麦芽糖糊精具有约5-19葡萄糖当量的还原糖含量和不同的多模态分子量分布。 当高固含量的淀粉(D.S.为0.5-1.8)被用作起始原料时,所得酶转化的酯化麦芽糊精的特征在于它们的水分散性提高。
    • 4. 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。