发明名称 |
FIBROUS CATIONIC POLYSACCHARIDES, PROCESS FOR PREPARATION THEREOF, DISPOSABLE ABSORBING PRODUCTS |
摘要 |
FIELD: chemistry of polymers. SUBSTANCE: present invention describes substances and synthesis thereof for preparing polymeric cationic materials having superabsorption properties with respect to water and physiological solutions. More particularly, present invention describes cationic cellulose derivatives having supersorption properties which are prepared from cellulose substrates by reacting them with excessive amount of quaternary ammonium compound in alkaline medium at elevated temperature from higher than 75 C to 120 C. The claimed process uses molar ratios of components. Cationic polysaccharides have substitution degree from 0.5 to 1.1. The present invention also describes disposable absorbing products comprising component from supersorption fibrous cationic polysaccharide. EFFECT: more efficient preparation process of fibrous cationic polysaccharide and improved properties of the disposable absorbing products. 7 cl, 15 ex, 3 tbl
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申请公布号 |
RU2127279(C1) |
申请公布日期 |
1999.03.10 |
申请号 |
RU19930058443 |
申请日期 |
1992.04.30 |
申请人 |
SOCHIETA KONSORTILE RICHERCHE ANGELINI S.P.A. |
发明人 |
DZHANFRANKO PALUMBO;DZHOVANNI KARLUCHCHI |
分类号 |
A61F13/00;A61L15/00;A61L15/28;A61L15/60;C08B11/145;(IPC1-7):C08B11/145 |
主分类号 |
A61F13/00 |
代理机构 |
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地址 |
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