Active agent-containing microcapsules

US12194156B2 · kind B2 · utility

Assignee

• Tagra Biotechnologies Ltd. · IL

Inventors

• Danny Goldstein · Sachnin, IL
• Olga Privalova · Lahavot HaBashan, IL
• Lior BEN-ALTABET · Eilot, IL
• Yaniv MENACHEM · Dishon, IL
• Hanan HAJ · Reihania, IL
• Shaher Duchi · Kfar Kama, IL

Key dates

• Filing date: Mar 4, 2015
• Grant date: Jan 14, 2025
• Expiry date: Mar 4, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K9/167
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Multi-layer microcapsules comprising a core comprising one or more active agents and two or more shells comprised of a wall-forming polymeric material, an opaque substance and a fatty acid salt, which are rupturable upon rubbing or pressing on the skin, are disclosed. The microcapsules are characterized by improved lightness values (L*) and/or compatibility in aqueous solution-containing formulations. Cosmetic or cosmeceutic formulations comprising the microcapsules, which can be, for example, body skin care formulation or facial skin care formulations, are also provided.