Acylated carboxyl alkyl saccharides, method for manufacture and use thereof in detergents

US6063752A · kind A · utility

Assignee

• SUDZUCKER AKTIENGESELLSCHAFT MANNHEIM/OCHSENFURT · DE

Inventors

• Sonja Ehrhardt · Groß-Gerau, DE
• Alireza Haji Begli · Ramsen, DE
• Markwart Kunz · Worms, DE

Key dates

• Filing date: Jun 18, 1997
• Grant date: May 16, 2000
• Expiry date: Jun 18, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Acylated carbohydrates with at least one carboxyalkyl group etherified with the carbohydrate of the following general formula EQU KH(--O--CHR.sub.1 --(CH.sub.2).sub.p --(COOH or COO.sup.-)).sub.n (--O--CO--R.sub.2).sub.m, wherein KH (carbohydrate) is a monosaccharide, disaccharide, trisaccharide or polysaccharide, and wherein PA0 if KH is a monosaccharide, then n=1 to 4 and m=1 to 4 with n+m=2 to 5; PA0 if KH is a disaccharide, then n=1 to 7 and m=1 to 7 with n+m=2 to 8; PA0 if KH is a trisaccharide, then n=1 to 10 and m=1 to 10 with n+m=2 to 11; and PA0 if KH is a polysaccharide, then n=0.2 to 2.8 and m=0.2 to 2.8 with n+m=0.4 to 3 (with polysaccharide referred to the monosaccharide unit of the KH), and wherein PA0 R1 is=H or a moiety with 1-9 carbon atoms, in particular an alkyl or acyl moiety, and PA0 R2 is a moiety with 1-9 carbon atoms, in particular an alkyl or acyl moiety, and wherein p=0 to 9.