Processes for the production of high molecular weight ethylene/alpha-olefin/non-conjugated interpolymers with low levels of long chain branching

US10450394B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Philip P. Fontaine · Alvin, US
• Lixin Sun · Sugar Land, US
• Colin Li Pi Shan · Pearland, US
• Juan C. Tuberquia · Manvel, US
• Susan G. Brown · Freeport, US
• Edward O. Madenjian · Lake Jackson, US
• Gregory J. Brennan · Angleton, US

Key dates

• Filing date: Mar 1, 2016
• Grant date: Oct 22, 2019
• Expiry date: Mar 1, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2500/01
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention provides a process to form a polymer composition comprising at least one ethylene/α-olefin/non-conjugated polyene interpolymer, and wherein the polymer composition has at least the following properties: a) a Mw/V0.1 ratio greater than, or equal to, 1.80 (g/mol)/(Pa·s); said process comprising polymerizing one or more mixture(s) comprising ethylene, an α-olefin and a non-conjugated polyene in the presence of a catalyst system comprising a metal-ligand complex of Formula (I), as described herein.