The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2004
Filed:
Jan. 25, 2002
Maurice S. Brookhart, Chapel Hill, NC (US);
Keith Kunitsky, West Grove, PA (US);
Weijun Liu, Carrboro, NC (US);
Jon M. Malinoski, Chapel Hill, NC (US);
Lin Wang, Hockessin, DE (US);
Ying Wang, Wilmington, DE (US);
Lynda Kaye Johnson, Wilmington, DE (US);
Kristina A. Kreutzer, Wilmington, DE (US);
Steven Dale Ittel, Wilmington, DE (US);
Other;
Abstract
Certain complexes containing ligands having a phosphino group, amino group or an imino group, and a second functional group such as amide, ester or ketone, when complexed to transition metals, catalyze the (co)polymerization of olefinic compounds such as ethylene, &agr;-olefins and/or acrylates. A newly recognized class of ligands for making copolymer containing polar monomers using late transition metal complexes is described.