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. 05, 2013
Filed:
Apr. 19, 2011
Daniel J. Arriola, Midland, MI (US);
Edmund M. Carnahan, Pearland, TX (US);
David D. Devore, Midland, MI (US);
Phillip D. Hustad, Manvel, TX (US);
Roger L. Kuhlman, Lake Jackson, TX (US);
Timothy T. Wenzel, Midland, MI (US);
Daniel J. Arriola, Midland, MI (US);
Edmund M. Carnahan, Pearland, TX (US);
David D. Devore, Midland, MI (US);
Phillip D. Hustad, Manvel, TX (US);
Roger L. Kuhlman, Lake Jackson, TX (US);
Timothy T. Wenzel, Midland, MI (US);
Dow Global Technologies, LLC, Midland, MI (US);
Abstract
A process for preparing polymers, especially multi-block copolymer containing therein two or more segments or blocks differing in chemical or physical properties, by contacting propylene, 4-methyl-1-pentene, or other Cα-olefins and one or more copolymerizable comonomers, especially ethylene in the presence of a composition comprising the admixture or reaction product resulting from combining: