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    • 13. 发明授权
    • Glyoxal free purified cationic polygalactomannan
    • 无乙二醛纯化阳离子聚半乳甘露聚糖
    • US08580952B2
    • 2013-11-12
    • US12986785
    • 2011-01-07
    • Ugo PfeifferMauro TenconiEva BaldaroValentina LangellaGiovanni FloridiGiuseppe Li Bassi
    • Ugo PfeifferMauro TenconiEva BaldaroValentina LangellaGiovanni FloridiGiuseppe Li Bassi
    • C08B37/00C07H1/00C07H3/00
    • C08B37/0087C08B37/0096
    • A glyoxal and boron free purified cationic polygalactomannan may be prepared by reacting a polygalactomannan flour, a nonionically derivatized polygalactomannan flour, or a mixture thereof, with a cationising reagent, adjusting the pH to be from about 4 to about 6; cross-linking the cationic with glyoxal, and filtering and water washing the cationic polygalactomannan to produce a glyoxalated purified cationic polygalactomannan containing not more than 70% by weight of water. In some cases it may be desirable to introduce a buffering agent to the glyoxalated purified cationic polygalactomannan to regulate the pH to from 8.0 to about 9.5, when measured at 1% (dry matter) in water. In other cases, it may be desirable to remove water to produce glyoxal free purified cationic polygalactomannan in powder form. Such compounds are particularly useful in personal care products.
    • 乙二醛和无硼纯化的阳离子聚半乳甘露聚糖可以通过使聚半乳甘露聚糖粉末,非离子衍生化的聚半乳甘露聚糖粉末或其混合物与阳离子化试剂反应来制备,将pH调节至约4至约6; 将阳离子与乙二醛交联,并过滤并水洗阳离子聚半乳甘露聚糖以产生含有不超过70重量%水的乙二醛纯化阳离子聚半乳甘露聚糖。 在一些情况下,当在水中以1%(干物质)测量时,可能需要向乙醛酸化的纯化阳离子聚半乳甘露聚糖引入缓冲剂以将pH调节至8.0至约9.5。 在其他情况下,可能需要除去水以产生无乙醛酸的纯化的粉末形式的阳离子聚半乳甘露聚糖。 这些化合物特别适用于个人护理产品。