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:
Nov. 02, 2004
Filed:
Oct. 29, 2002
Petar R. Dvornic, Midland, MI (US);
Jin Hu, Midland, MI (US);
Dale J. Meier, Midland, MI (US);
Robert M. Nowak, Midland, MI (US);
Paul L. Parham, Bay City, MI (US);
Michigan Molecular Institute, Midland, MI (US);
Abstract
Hyperbranched polymers are prepared by a process in which a monomer having the form A is reacted with another monomer of the form B , where A and B are functional groups that do not react with themselves, but do react with each other. The process allows synthesis of hyperbranched polymers having a single type of terminal functional group from comonomers, each of which has a single type of functional group. The invention allows greater flexibility in the preparation of a larger variety of different hyperbranched polymers and enables hyperbranched polymers to be prepared at a lower cost as compared with conventional processes using monomers having two types of functional groups that react during polymerization.