Microcrystalline cellulose compositions

US7462232B2 · kind B2 · utility

Assignee

• FMC Corporation · US

Inventors

• Domingo C. Tuason · Bensalem, US
• Jose Amundarain · Burlington, US
• Gregory R. Krawczyk · Princeton Junction, US
• Edward Selinger · Langhorne, US
• William R. Blakemore · Topsham, US
• James J. Modliszewski · Brick, US
• Joseph Lee · Warrington, US
• Frank Messick · Newark, US

Key dates

• Filing date: May 14, 2003
• Grant date: Dec 9, 2008
• Expiry date: Nov 8, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/02
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Ultra-fine microcrystalline cellulose compositions are disclosed which comprise co-attrited microcrystalline cellulose and a hydrocolloid. The compositions have a mean particle size of less thin 10 microns. The compositions are prepared by subjecting a high solids mixture of microcrystalline cellulose and a hydrocolloid to high shear forces in the presence of an anti slip agent preferably an aqueoussolution of an inorganic salt. The compositions are especially useful in food pharmaceutical and cosmetic and industrial applications.