Modified titanium dioxide for cosmetic use and process for its preparation
Through composite modification with sodium stearoyl glutamate, triisostearic acid isopropoxy titanium salt and silica, titanium dioxide exhibits excellent dispersibility and stability in various oil-phase systems, solving the problem of dispersion instability of titanium dioxide in multi-element oil-phase systems in existing technologies, and achieving improved stability and makeup effect in color cosmetics and base makeup products.
Patent Information
- Application Number
- CN202510787992.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-21
- Estimated Expiration
- 2045-06-13
AI Technical Summary
Existing titanium dioxide modification methods cannot exhibit good dispersibility and stability in various oil-phase systems. In particular, in color cosmetics or base makeup products with high powder content, problems such as dispersion instability, agglomeration, and powder floating are prone to occur, resulting in poor makeup effect.
A composite modification method using sodium stearoyl glutamate, triisostearic acid isopropoxytitanium salt, silica, and titanium dioxide was adopted. Through the synergistic modification of sodium stearoyl glutamate and triisostearic acid isopropoxytitanium salt, the surface of titanium dioxide is made to have both hydrophilic and oleophilic properties. Combined with the use of silica and polymethylsiloxane powder, a multi-layer surface modification system was formed to enhance the interfacial wetting properties and dispersion stability.
Modified titanium dioxide exhibits good dispersibility and stability in wax-based makeup creams, silicone oil systems, synthetic ester oil systems, and water-in-oil systems. It avoids flocculation, agglomeration, and interfacial delamination problems under high powder content, and significantly improves color streaks and uneven color development in makeup/base products, resulting in a natural and delicate makeup effect.