Oral care compositions comprising dicarboxy functionalized polyorganosiloxanes

US7025950B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Satyanarayana Majeti · Middletown, US
• Elizabeth Ann Brown Reno · Lancaster, US
• Stephen Andras Kovacs · Loveland, US
• William Michael Glandorf · Mason, US
• Philippe Olier · Val-de-Reuil, FR

Key dates

• Filing date: May 6, 2003
• Grant date: Apr 11, 2006
• Expiry date: Sep 2, 2023

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q11/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Disclosed are compositions and methods for treating and modifying surfaces and for enhancing delivery of active agents to surfaces treated with the compositions, which comprise siloxane polymers functionalized with pendant moieties comprising anionic groups, specifically carboxylic acid groups. When applied to a suitable surface, the present composition comprising the carboxy functionalized siloxane polymers forms a substantially hydrophobic coating on the treated surface. These polymers effectively deposit on surfaces that have cationic sites, which are capable of forming bonds or linkages with the anionic groups of the polymer. The treated surface becomes hydrophobic due to the deposition of the carboxy functionalized siloxane polymer, which then imparts a variety of end use benefits to that surface such as ease of cleaning, stain removal and prevention, whitening, etc. The carboxy functionalized siloxane polymer further acts as a carrier to deposit active agents onto the surface and to improve retention and efficacy of said actives on the treated surface. The present compositions are useful in a variety of applications including oral care, hair and skin care, personal care, cosm…