Stabilized polyolefin compositions

US8252884B2 · kind B2 · utility

Assignee

• Polnox Corporation · US

Inventors

• Vijayendra Kumar · Lowell, US
• Rajesh Kumar · Marlborough, US
• Ashish Dhawan · Saint Paul, US
• Sui-Zhou Yang · Dracut, US
• Ashok L. Cholli · Chelmsford, US

Key dates

• Filing date: Aug 24, 2011
• Grant date: Aug 28, 2012
• Expiry date: Aug 24, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2261/1432
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed are compositions comprising antioxidants and stabilizers, such as, acid scavengers or organic phosphorus stabilizers, and optionally further comprising co-stabilizers. The disclosed compositions are useful as stabilizers for polyolefins and other polymeric materials. The disclosed compositions and methods generally provide longer shelf lifes and better oxidative resistance to materials than currently available antioxidants.