Cosmetic and skin care sticks with high water contents

US6613338B1 · kind B1 · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Jörg Schreiber · Hamburg, DE
• Khiet Hien Diec · Hamburg, DE
• Florian Wolf · Hamburg, DE
• Manfred Klier · Reinbek, DE

Key dates

• Filing date: Apr 14, 1999
• Grant date: Sep 2, 2003
• Expiry date: Apr 14, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q17/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Lipsticks, antiacne sticks, sunscreen sticks and eyeshadow sticks, with a high water content, characterized in that they comprise(a) a lipid phase, which comprises(a1) at least one oil component(a2) at least one wax component(a3) optionally other substances soluble or dispersible in the lipid phase,(b) an aqueous phase, which comprises(b1) from 30 to 85% by weight of water, based on the total weight of the stick composition and(b2) if desired, substances soluble or dispersible in water,(c) at least one active ingredient or several chosen from the active ingredients known for lipsticks, antiacne sticks, sunscreen sticks and eyeshadow sticks,(d) a W/O emulsifier or a mixture of two or more W/O emulsifiers,(e) one or more stabilizers, chosen from the group of substances of the general structure A—B—A′, where A and A′ are identical or different hydrophobic organic radicals, and B is a hydrophilic group,(f) if desired, further surface-active substances as coemulsifiers, and also, if desired, stabilizers and further customary cosmetic and/or pharmaceutical auxiliaries, active ingredients and/or additives.