Use of cross-linked polymers to increase the viscosity in cosmetic, pharmaceutical and technical compositions

US4237243A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Jochen M. Quack · Eppstein, DE
• Alwin Reng · Kelkheim, DE
• Juliane Balzer · Frankfurt am Main, DE
• Friedrich Engelhardt · Frankfurt, DE
• Joachim Ribka · Offenbach am Main, DE

Key dates

• Filing date: Feb 9, 1979
• Grant date: Dec 2, 1980
• Expiry date: Feb 9, 1999

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q19/10
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Use of cross-linked polymers for increasing the viscosity in cosmetic, pharmaceutical and technical compositions, wherein the polymer chains have the following composition: PA0 k - p molar % of groups of the formula ##STR1## p molar % of groups of the formula ##STR2## from 0 to 45 molar % of groups of the formula ##STR3## and from 0.1 to 20 molar % of a cross-linking agent, wherein PA1 R.sup.1 represents as a statistical mean value from 0 to 100 molar % of hydrogen and from 100 to 0 molar %, each calculated on the proportion of (k-p) molar %, of CH.sub.2 OH groups, PA1 R.sup.2 and R.sup.3 are hydrogen, or one of the radicals R.sup.2 and R.sup.3 is methyl, the other being hydrogen, PA1 X is cyano, alkoxycarbonyl with from 1 to 8 carbon atoms altogether, whose alkoxy radical may also be substituted by --OH, alkanoyloxy with from 2 to 6 carbon atoms, alkanoylamino with 2 to 8 carbon atoms which--if they have at least 4 carbon atoms--may also be cyclic and then form a pyrrolidone or caprolactam ring, phenyl, carboxyl or trialkoxysilyl with 1 to 2 carbon atoms in the alkoxy groups, PA1 M is an alkali metal cation, and PA1 k stands for the range of from 99.9 to 50, PA1 p stands for the r…