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2. 发明授权

US06541614B1 Polysaccharide derivative 有权
标题翻译：多糖衍生物
公开(公告)号：US06541614B1
公开(公告)日：2003-04-01
申请号：US09926688
申请日：2001-12-03
申请人： Atsushi Nagasawa , Tomohito Kitsuki , Takeshi Ihara
发明人： Atsushi Nagasawa , Tomohito Kitsuki , Takeshi Ihara
IPC分类号： C07H1508
CPC分类号： C08B37/00 , A61K8/73 , A61Q5/02 , A61Q19/00 , A61Q19/10 , C08B11/00 , C08B11/08 , C08B11/20 , C08B31/00 , C08B31/08 , C08B31/12 , C08B31/125
摘要： Polysaccharide derivatives derived from a polysaccharide or a derivative thereof by substituting a part or all of the hydrogen atoms of the hydroxyl groups of the polysaccharide or the derivative thereof with the groups represented by the following formula (1): —E1—(OA)n—E2—R (1) wherein E1 represents a divalent saturated C1-6 hydrocarbon group which may be substituted with one or more hydroxyl groups or oxo groups, n stands for a number of from 8 to 300, n numbers of As may be the same or different and each independently represent a divalent saturated C1-6 hydrocarbon group, E2 represents an ether bond or an oxycarbonyl group, and R represents a C4-30 alkyl group which may be substituted with one or more hydroxyl groups, in which the H(s) of one or more hydroxy groups in each of said groups (1) may be further substituted with the groups (1); thickeners and emulsifiers comprising these polysaccharide derivatives; as well as aqueous compositions containing said polysaccharide derivatives. The polysaccharide derivatives of the present invention are excellent in water solubility and have such a rheological characteristic that the viscosity thereof increases at high temperatures, whereby they are very useful as a thickener exhibiting an excellent handling property at low temperatures and a sufficient thickening effect at high temperatures, as an emulsifier exhibiting an excellent emulsifying action allowing hydrophobic compounds to exist very stably in water, and also as a thickening and stabilizing agent for various toiletry products such as viscous bath preparations, massaging cosmetic preparations, shower preparations, skin care preparations, hair washing preparations, body washing preparations, garment detergents, garment finishing agents and hard surface cleaning agents.
摘要翻译：通过用下述式（1）表示的基团代替多糖或其衍生物的羟基的部分或全部的氢原子的一部分或全部来自多糖或其衍生物的多糖衍生物：其中E1表示二价饱和C1 可以被一个或多个羟基或氧代基取代的烃基，n表示数量为8至300，n数可以相同或不同，并且各自独立地表示二价饱和C 1-6烃基团，E2表示醚键或氧羰基，R表示可被一个或多个羟基取代的C4-30烷基，其中每个所述基团中的一个或多个羟基的H（s）（1）可以进一步被基团（1）取代; 包含这些多糖衍生物的增稠剂和乳化剂; 以及含有所述多糖衍生物的含水组合物。本发明的多糖衍生物具有优异的水溶性，并且具有其粘度在高温下增加的流变特性，因此它们作为显示出优异处理性能的增稠剂是非常有用的在低温下和在高温下具有充分的增稠效果，作为表现出优异的乳化作用的乳化剂，使疏水性化合物在水中非常稳定地存在，以及作为用于各种化妆品的增稠和稳定剂，例如粘稠浴剂，按摩化妆品制剂，沐浴用品，护肤品，洗发剂，洗身剂，衣物洗涤剂，服装整理剂和硬表面清洁剂。

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