Process for making ultra-low molecular weight ethylene polymers and blends thereof

US6723810B2 · kind B2 · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Malcolm Finlayson · Solana Beach, US
• Craig C. Garrison · Lake Jackson, US
• Ralph E. Guerra · Lake Jackson, US
• Martin J. Guest · Lake Jackson, US
• Brian W. S. Kolthammer · Lake Jackson, US
• Deepak R. Parikh · Lake Jackson, US
• Steven M. Ueligger · Angleton, US

Key dates

• Filing date: Dec 21, 2001
• Grant date: Apr 20, 2004
• Expiry date: Dec 21, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/943
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for making a non-pourable ultra-low molecular weight ethylene polymer composition and blends thereof. Such polymer compositions tend to have longer lamella and a greater degree of crystalline organization than corresponding higher molecular weight materials at an equivalent density.