Copolymers of olefins and vinyl- and allylsilanes

US7348388B2 · kind B2 · utility

Assignee

• E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

• Steven Dale Ittel · Wilmington, US
• Lynda Kaye Johnson · Wilmington, US
• Lin Wang · Hockessin, US
• Ying Wang · Wilmington, US
• Elizabeth Forrester McCord · Hockessin, US
• Catherine E. Radzewich · Iowa City, US
• Stephan James McLain · Wilmington, US
• Karl Jeffrey Sweetman · Wilmington, US
• Alison Margaret Anne Bennett · Wilmington, US
• Alex Sergey Ionkin · Kennett Square, US
• Rinaldo S. Schiffino · Wilmington, US

Key dates

• Filing date: Nov 15, 2002
• Grant date: Mar 25, 2008
• Expiry date: Nov 15, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2410/07
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Ethylene and allyl- or vinylsilanes are efficiently copolymerized by certain late transition metal complexes containing selected bidentate or tridentate ligands. The resulting novel polymers may be crosslinked by moisture when vinylsilane contains groups bound to silicon which are hydrolyzable. The polymers are useful for wire coating, crosslinked foams, pipes, and other uses.