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:
Sep. 15, 2015
Filed:
Mar. 22, 2012
Robert J. Jorgensen, Scott Depot, WV (US);
Michael A. Kinnan, N Canton, OH (US);
Michael D. Turner, Hurricane, WV (US);
Stephanie M. Whited, Charleston, WV (US);
Laszlo L. Ban, Bordentown, NJ (US);
Burkhard E. Wagner, Highland Park, NJ (US);
Robert J. Jorgensen, Scott Depot, WV (US);
Michael A. Kinnan, N Canton, OH (US);
Michael D. Turner, Hurricane, WV (US);
Stephanie M. Whited, Charleston, WV (US);
Laszlo L. Ban, Bordentown, NJ (US);
Burkhard E. Wagner, Highland Park, NJ (US);
Union Carbide Chemicals & Plastics Technology LLC, Midland, MI (US);
Abstract
A Ziegler-Natta procatalyst composition in the form of solid particles and comprising magnesium, halide and transition metal moieties, said particles having an average size (D50) of from 10 to 70 μm, characterized in that at least 5 percent of the particles have internal void volume substantially or fully enclosed by a monolithic surface layer (shell), said layer being characterized by an average shell thickness/particle size ratio (Thickness Ratio) determined by SEM techniques for particles having particle size greater than 30 μm of greater than 0.2.