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:
Aug. 02, 2011
Filed:
Jan. 30, 2006
Daniel J. Arriola, Midland, MI (US);
Edmund M. Carnahan, Fresno, TX (US);
Marilyn Bokota, Beaverton, MI (US);
Phillip D. Hustad, Manvel, TX (US);
Roger L. Kuhlman, Lake Jackson, TX (US);
Timothy T. Wenzel, Midland, MI (US);
Pamela J. Stirn, Midland, MI (US);
Daniel J. Arriola, Midland, MI (US);
Edmund M. Carnahan, Fresno, TX (US);
Marilyn Bokota, Beaverton, MI (US);
Phillip D. Hustad, Manvel, TX (US);
Roger L. Kuhlman, Lake Jackson, TX (US);
Timothy T. Wenzel, Midland, MI (US);
Pamela J. Stirn, Midland, MI (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A process for the polymerization of one or more addition polymerizable monomers to form a copolymer comprising multiple regions or segments of differentiated polymer composition or properties comprising contacting an addition polymerizable monomer or mixture of monomers under addition polymerization conditions with a composition comprising at least one olefin polymerization catalyst, a cocatalyst and a chain shuttling agent, said process being characterized by formation of at least some of the growing polymer chains under differentiated process conditions such that two or more blocks or segments formed within at least some of the resulting polymer are chemically or physically distinguishable.