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:
Oct. 11, 2005
Filed:
Apr. 26, 2004
Nicole K. Boaen, Minneapolis, MN (US);
Marc A. Hillmyer, Minneapolis, MN (US);
Stephen F. Hahn, Midland, MI (US);
Nicole K. Boaen, Minneapolis, MN (US);
Marc A. Hillmyer, Minneapolis, MN (US);
Stephen F. Hahn, Midland, MI (US);
Dow Global Technologies Inc., Midland, MI (US);
Regents of the University of Minnesota, Minneapolis, MN (US);
Abstract
The present invention is a method for oxyfunctionalizing, that is, introducing oxygen functionality to, a polyolefin such as polypropylene and poly(ethylene-alt-propylene). The polyolefin is contacted with an oxygen source such as a persulfate and catalytic amounts of a metal porphyrin complex under mild conditions to yield an oxyfunctionalized polymer that has a polydispersity that is very similar to that of the starting polymer.