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:
Jun. 13, 2017
Filed:
Feb. 06, 2015
Applicant:
Borealis Ag, Vienna, AT;
Inventors:
Thomas Hjertberg, Kungshamn, SE;
Alexandra Romina Albunia, Linz, AT;
Yi Liu, Engerwitzdorf, AT;
Qizheng Dou, Linz, AT;
Assignee:
BOREALIS AG, Vienna, AT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F 10/00 (2006.01); C08F 10/02 (2006.01); C08L 23/06 (2006.01);
U.S. Cl.
CPC ...
C08F 10/02 (2013.01); C08L 23/06 (2013.01); C08L 2203/18 (2013.01); C08L 2205/025 (2013.01); C08L 2207/062 (2013.01); C08L 2207/068 (2013.01); C08L 2314/02 (2013.01);
Abstract
Disentangled high or ultrahigh molecular weight polyethylene ((U)HMWPE) being produced with a Ziegler-Natta catalyst, characterized by (i) a factor for the normalized elastic modulus G'/G′of less than 0.95 determined in a dynamic time sweep measurement at 180° C. with constant strain of 0.5% at fixed frequency of 10 rad/s for at least 3600 s, whereby G′is the elastic shear modulus measured at tdirectly after melting the sample and G′is the maximum plateau modulus.