公开(公告)号：EP0879826A1

公开(公告)日：1998-11-25

申请号：EP97913448.3

申请日：1997-11-26

申请人： Kao Corporation

发明人： YAMAMURO, Hotaka ,  IHARA, Takeshi ,  KITSUKI, Tomohito ,  MIYAJIMA, Tetsuya ,  YAMATO, Fujio ,  KOHAMA, Makoto

IPC分类号： C08B11/04 ,  C08B11/12 ,  C08B31/12 ,  C08B37/00 ,  C04B24/38 ,  C04B28/02 ,  C04B28/14

CPC分类号： C04B28/02 ,  C04B24/166 ,  C04B24/243 ,  C04B24/38 ,  C04B2111/00129 ,  C08B11/193 ,  C08B13/00 ,  C04B24/2647 ,  C04B24/165 ,  C04B2103/32

摘要： A polysaccharide derivative prepared by replacing all or part of the hydroxyl hydrogen atoms of a polysaccharide or polysaccharide derivative by (A) a hydrophobic substituent having a C 8 -C 43 hydrocarbon chain as the partial structure and (B) an ionic hydrophilic substituent having at least one member selected from the group consisting of sulfonic, carboxyl phosphoric, and sulfate groups and salts thereof as the partial structure, wherein the average degree of replacement by the substituent (A) is 0.0001 or above but below 0.001 per constituent monosaccharide residue as determined by Zeisel's method or the diazomethane method and that by the substituent (B) is 0.01 to 2.0 per constituent monosaccharide residue as determined by colloidal titration. This polysaccharide derivative is useful as the admixture for hydraulic materials and can give stable hydraulic compositions excellent in dispersion.

摘要翻译： 通过（A）具有C8-C43烃链作为部分结构的疏水性取代基代替多糖或多糖衍生物的全部或部分羟基氢原子制备的多糖衍生物，（B）具有至少一个 选自磺基，羧基磷酸和硫酸酯基的组分和其盐作为部分结构，其中取代基（A）的平均取代度为0.0001以上但低于0.001，由构成单糖残基测定，由Zeisel 方法或重氮甲烷法，通过胶体滴定法测定每个构成单糖残基的取代基（B）为0.01〜2.0。 这种多糖衍生物可用作水硬性材料的混合物，并且可以得到稳定的水分分散性优良的组合物。

公开(公告)号：EP0879826B1

公开(公告)日：2002-10-23

申请号：EP97913448.3

申请日：1997-11-26

申请人： Kao Corporation

发明人： YAMAMURO, Hotaka ,  IHARA, Takeshi ,  KITSUKI, Tomohito ,  MIYAJIMA, Tetsuya ,  YAMATO, Fujio ,  KOHAMA, Makoto

IPC分类号： C08B11/04 ,  C08B11/12 ,  C08B31/12 ,  C08B37/00 ,  C04B24/38 ,  C04B28/02 ,  C04B28/14 ,  C08B11/193

CPC分类号： C04B28/02 ,  C04B24/166 ,  C04B24/243 ,  C04B24/38 ,  C04B2111/00129 ,  C08B11/193 ,  C08B13/00 ,  C04B24/2647 ,  C04B24/165 ,  C04B2103/32

摘要： Polysaccharide derivatives in which some or all of the hydroxyl groups have been substituted by hydrophobic substituent(s) (A) having as the partial structure a C8-43 hydrocarbon group, and ionic hydrophilic substituent(s) (B) having as the partial structure at least one group selected from the group consisting of sulfonate, carboxyl, phosphate and sulfate groups and salts thereof, which have an average degree of substitution per constituting monosaccharide residue by the substituent (A), determined by Zeisel's method or the diazomethane method, of at least 0.0001 but less than 0.001 and an average degree of substitution per constituting monosaccharide residue by the substituent (B), determined by the colloidal titration method, of from 0.01 to 2.0. These derivatives are useful as chemical admixtures for hydraulic materials and give hydraulic compositions excellent in dispersibility and stability.