Urea phenyl derivatives and their use as polypropylene nucleating agents

US7572849B2 · kind B2 · utility

Assignee

• CHEMTURA CORPORATION · US

Inventors

• Qinggao Ma · Naugatuck, US
• William A. Wortman · Harwinton, US
• Jin-Yun Wang · Cheshire, US
• Huiling Ding · Cheshire, US
• Roy Russell · Waterbury, US
• Leigh Cameron Allen · Winsted, US
• Paul E. Stott · Sandy Hook, US
• John M. Wefer · Newtown, US
• David J. Sikora · Middlebury, US

Key dates

• Filing date: Nov 18, 2005
• Grant date: Aug 11, 2009
• Expiry date: Sep 15, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/21
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed herein are urea phenyl derivatives of the formula:wherein each R is an independently selected hydrocarbyl group and n is 2 or 3, and their use as nucleating agents for propylene polymers.