PERSONAL CARE RINSE OFF COMPOSITION WITH COMPOSITE OPACIFIER PARTICLES

• Main Authors: ZENG, Fanwen, BLOXOM, Stephanie, A, RAO, Yuanqiao, GU, Junsi, MALOTKY, David, L, O'CONNOR, Ying, WASSERMAN, Eric, QI, Luqing
• Format: Patent
• Language: English; French; German
• Published: 11.10.2023
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

An aqueous personal care rinse off composition is provided, comprising: a dermatologically acceptable aqueous vehicle; a dermatologically acceptable cleaning surfactant; and a plurality of composite opacifier particles, wherein the composite opacifier particles comprise metal oxide particles that are partially or completely encapsulated by a wax; wherein the metal oxide particles are selected from the group consisting of zinc oxide, titanium oxide and mixtures thereof; wherein the metal oxide particles have a z average particle size of >100 nm as measured by dynamic light scattering; wherein the wax has a melting point temperature of 50 to 110° C.; and wherein the composite opacifier particles have a z average particle size of >100 nm to 2,000 nm as measured by dynamic light scattering.