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    Granular starch-based gums
    1.
    发明授权
    Granular starch-based gums 失效
    颗粒淀粉基胶

    公开(公告)号：US3870527A

    公开(公告)日：1975-03-11

    申请号：US26602172

    申请日：1972-06-26

    Applicant: STALEY MFG CO A E

    Inventor： KRYGER ALLEN C ,  NEVIN CHARLES S ,  WILHELM DONALD L

    IPC: B41N3/08 ,  C08B31/00 ,  C09J103/02 ,  G03F7/04 ,  C09K3/00 ,  C08B19/06

    CPC classification number: C08B31/00 ,  G03F7/04

    Abstract: Granular starch-based gums which are readily soluble in water and which exhibit excellent storage stability in aqueous solutions. These gums are useful as replacements for gum arabic, particularly in lithography. They may also be used as emulsifiers and stabilizers in foods, drugs and cosmetics when FDA approved. Additional uses in printing inks, paints, and wherever gum arabic is employed, are also contemplated. They comprise granular highamylopectin starches containing 30 percent or less amylose which have been acid thinned, and which have a degree of substitution of a nonionic substituent from about 0.1 up to about 0.3. The possible nonionic substituents include alkyl, hydroxyalkyl, cyanoalkyl, amidoalkyl and acyl groups. In addition, carboxyl and amino groups can be used to increase the light sensitivity of the starches in sensitizer film solution applications. Lithographic films of high clarity are made possible by using the starch derivatives of the invention.

    Abstract translation: 颗粒状淀粉基树胶易溶于水，在水溶液中表现出优异的储存稳定性。 这些胶可用作阿拉伯树胶的替代品，特别是在光刻中。 当FDA批准时，它们也可用作食品，药物和化妆品中的乳化剂和稳定剂。 印刷油墨，涂料以及使用阿拉伯树胶的其他用途也是可以预期的。 它们包含含有30％或更少直链淀粉的颗粒状高支链淀粉，其已被酸化，并且具有约0.1至约0.3的非离子取代基的取代度。 可能的非离子取代基包括烷基，羟基烷基，氰基烷基，酰氨基烷基和酰基。 此外，羧基和氨基可用于增加敏化剂薄膜溶液应用中淀粉的光敏感性。 通过使用本发明的淀粉衍生物可以实现高透明度的平版印刷薄膜。

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