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    • 28. 发明申请
    • PROCEDURE FOR THE PREPARATION OF PURIFIED CATIONIC GUAR
    • 制备清洁剂的方法
    • US20100036114A1
    • 2010-02-11
    • US12515528
    • 2007-04-17
    • Eva BaldaroRaffaella PelizzariMauro TenconiGiuseppe Li Bassi
    • Eva BaldaroRaffaella PelizzariMauro TenconiGiuseppe Li Bassi
    • C08B37/00
    • C08B37/0096C11D3/227
    • Procedure for the preparation of cationic guar having DS comprised between 0.01 and 3, free from boron and suitable for the use in the cosmetic field and in household cleaning products, comprising the following steps: a) 100 parts by weight of guar flour are reacted with 3-chloro-2-hydroxypropyl trimethylammonium chloride and sodium hydroxide in from 5 to 500 parts by weight of a water and alcohol mixture containing from 20 to 50% by weight of water; b) the amount of water and alcohol is regulated in order to obtain a dispersion containing from 65 to 95% by weight of a of water and alcohol mixture containing from 30 to 50% by weight of water and the dispersion is maintained under stirring at temperature comprised between 15 and 40° C. for at least 10 minutes; c) the mixture is filtered under vacuum and dried to obtain the purified cationic guar.
    • 制备DS含量为0.01至3,不含硼并适用于化妆品领域和家用清洁产品的DS的阳离子瓜尔胶的方法,包括以下步骤:a)将100重量份瓜耳粉与 5-氯-2-羟基丙基三甲基氯化铵和氢氧化钠,其含量为5至500重量份含有20至50重量%水的水和醇混合物; b)调节水和醇的量以获得含有65至95重量%的含有30至50重量%水的水和醇混合物的分散体,并将分散体在温度下保持搅拌 在15至40℃之间至少10分钟; c)将混合物在真空下过滤并干燥,得到纯化的阳离子瓜尔胶。