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:
Feb. 21, 2017
Filed:
Jul. 29, 2011
Peter Stevens, Mortsel, BE;
Franky Fant, Wetteren, BE;
Daan Dewachter, Mechelen, BE;
Alain Brusselle, Wilrijk, BE;
Peter Stevens, Mortsel, BE;
Franky Fant, Wetteren, BE;
Daan Dewachter, Mechelen, BE;
Alain Brusselle, Wilrijk, BE;
TOTAL RESEARCH & TECHNOLOGY FELUY, Feluy, BE;
Abstract
The present invention relates to a method for consecutively producing at least two different polyethylene resins in one slurry loop reactor, comprising producing a first polyethylene resin in the presence of a Ziegler-Natta and/or a Chromium catalyst, and consecutively producing a second polyethylene resin in the presence of a metallocene catalyst, characterized in that the ratio of the melt flow index of the first produced polyethylene resin to the melt flow index of the second produced polyethylene resin is at least 0.3.