Precipitated silica product with low surface area, dentifrices containing same, and processes

US6946119B2 · kind B2 · utility

Assignee

• J.M. Huber Corporation · US

Inventors

• Karl W. Gallis · Perryville, US
• Fitzgerald A. Sinclair · Bear, US
• Mark Wozniak · Cockeysville, US
• Jason T. Zapf · Perryville, US
• John A. Kostinko · Bel Air, US
• Michael Simone · North East, US

Key dates

• Filing date: Feb 14, 2003
• Grant date: Sep 20, 2005
• Expiry date: Dec 12, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/19
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Precipitated silica product having low surface area and enhanced flavor compatibility. The precipitated silica product is especially well-adapted for use in dentifrices containing cetylpyridinium chloride, which do not attach to the low surface area silica product in a meaningful level and thus remain available for antimicrobial action. Processes for making the low surface area silica product are also provided.