COMPOSITIONS AND METHODS INCORPORATING PHOTOCATALYSTS

• Main Authors: QIAN LI, IOANNIS CONSTANTINE CONSTANTINIDES, ELLEN SCHMIDT BAKER
• Format: Patent
• Language: English; Spanish
• Published: 26.09.2016
• Subjects: ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; HUMAN NECESSITIES; HYGIENE; INKS; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS; THEIR RELEVANT APPARATUS; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention relates to a composition including an active material having groups capable of covalent attachment to a substrate in the presence of an acid or a base, a photocatalyst capable of generating an acid or a base upon exposure to light, and a vehicle. The active is a silicone polymer and/or a silicone oligomer, having a molecular weight higher than 1,000 grams/mole, and at least one organic functional group. The compositions may also include surfactants, emulsifiers, oxidants, and other components. A method for treating a substrate is also disclosed. The compositions and methods described herein are useful in personal care product and consumer care product applications. Las presente invención se refiere a una composición que incluye un material activo que tiene grupos capaces de unirse en forma covalente a un sustrato en presencia de un ácido o una base, un fotocatalizador capaz de generar un ácido o una base cuando se expone a la luz y un vehículo. El activo es un oligómero de silicona y/o polímero de silicona que tiene un peso molecular mayor que 1000 gr/mol y al menos un grupo funcional orgánico. Las composiciones pueden incluir, además, surfactantes, emulsionantes, oxidantes y otros componentes. También se describe un método para tratar un sustrato. Las composiciones y métodos descritos en la presente descripción son útiles en productos para el cuidado personal y aplicaciones de producto para el cuidado del consumidor.