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. 05, 2019
Filed:
Jul. 26, 2013
Total Research & Technology Feluy, Seneffe, BE;
Aurelien Vantomme, Bois-de-Villers, BE;
Christopher Willocq, Bousval, BE;
Daan Dewachter, Mechelen, BE;
FINA TECHNOLOGY, INC., Houston, TX (US);
Abstract
An uncompounded particulate metallocene-produced polyethylene can have a multimodal molecular weight distribution and particle size distribution measured by obtaining at least four fractions by sieving. A set of Mw values including an Mw value for each fraction can be obtained. A set of Mn values including an Mn value for each fraction can be obtained. A ratio between a standard deviation value of the Mw set and a mean value of the Mw set can be equal to or less than 0.15. A ratio between a standard deviation value of the Mn set and a mean value of the Mn set can be equal to or less than 0.15. The uncompounded particulate metallocene-produced polyethylene can be prepared by a process that includes polymerization in an apparatus. The apparatus can include at least three serially connected loop reactors.