Nitrogen-containing derivatives of carboxymethylcellulose, their synthesis and their use in cosmetic preparations

US4988806A · kind A · utility

Assignee

• Th. Goldschmidt. AG · DE

Inventors

• Burghard Gruning · Essen, DE
• Klaus Hoffmann · Essen, DE
• Gotz Koerner · Essen, DE
• Hans-Joachim Kollmeier · Essen, DE

Key dates

• Filing date: Jun 13, 1989
• Grant date: Jan 29, 1991
• Expiry date: Jun 13, 2009

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/5426
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Derivatives of carboxymethylcellulose are disclosed in which all or a portion of the carboxymethyl groups are replaced by groups of the general formula ##STR1## in which R.sup.1 is a hydrogen or methyl group, PA1 R.sup.2 is a divalent aliphatic hydrocarbon group with 2 to 5 carbon atoms, PA1 R.sup.3, R.sup.4 are alkyl groups with 1 to 4 carbon atoms, PA1 R.sup.5 is an alkyl group with 1 to 4 carbon atoms or a benzyl group, PA1 X is a halogen or sulfate group or a sulfonic acid group, with the proviso that, on the average, at least 0.1 quaternary ammonium groups are contained per anhydroglucose unit of the polymeric molecule. The invention furthermore relates to derivatives of carboxymethylcellulose, in which all or a portion of the carboxymethyl groups are replaced by groups of the general formula ##STR2## in which the substituents R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the above meaning, with the proviso that, on the average, at least 0.1 tertiary amino groups are contained per anhydroglucose unit of the polymeric molecule, as intermediates for the synthesis of the aforementioned derivatives. The invention furthermore is directed to a method for the synthesis of the derivative…