Method for preparing starch ether derivatives
    8.
    发明授权
    Method for preparing starch ether derivatives 失效
    淀粉醚衍生物的制备方法

    公开(公告)号:US4167621A

    公开(公告)日:1979-09-11

    申请号:US918709

    申请日:1978-06-26

    申请人: Martin M. Tessler

    发明人: Martin M. Tessler

    CPC分类号: C08B31/12

    摘要: Starch ether derivatives are prepared by reacting a starch base with about 0.5-100% by weight of a neutralized alkyl ester of 3-chloro-2-sulfopropionic acid, based on dry starch, and then isolating the resultant starch derivative. The 2-sulfo-2-carboxyethyl starch ethers thus prepared may be utilized in many applications, and are particularly useful as wet-end additives in paper manufacturing at low pH.

    摘要翻译: 淀粉醚衍生物通过使淀粉碱与约0.5-100重量%的中和的3-氯-2-磺基丙酸烷基酯(基于干淀粉)反应制备,然后分离得到的淀粉衍生物。 如此制备的2-磺基-2-羧乙基淀粉醚可用于许多应用,并且在低pH下在纸制造中特别适用于湿端添加剂。