Viscous composition

• Main Authors: MURAKAMI RYOSUKE, MORIMITSU YUICHIRO, ASHIDA TARO
• Format: Patent
• Language: English
• Published: 25.03.2015
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The purpose of the present invention is to provide a viscous composition which is capable of achieving a high viscosity over a pH range from acidic to weakly acidic conditions even in the presence of a polyvalent metal salt by means of an alkyl-modified carboxyl group-containing water-soluble copolymer. A viscous composition, which is obtained by adjusting the pH of a liquid composition that contains a specific alkyl-modified carboxyl group-containing water-soluble copolymer, a polyvalent metal salt and water to 7.0 or more with use of a base, and then adjusting the pH of the resulting liquid composition to 2.5-6.5 with use of a carboxylic acid and/or a phosphorus oxo acid, is able to have a high viscosity.