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. 19, 2013
Filed:
Jan. 09, 2009
Manfred Stadlbauer, Linz, AT;
Eberhard Ernst, Unterweilersdorf, AT;
Petri Lehmus, Helsinki, FI;
Yvo Daniels, Zonhofen, BE;
Franck Jacobs, Evergem, BE;
Manfred Stadlbauer, Linz, AT;
Eberhard Ernst, Unterweilersdorf, AT;
Petri Lehmus, Helsinki, FI;
Yvo Daniels, Zonhofen, BE;
Franck Jacobs, Evergem, BE;
Borealis Technology OY, Porvoo, FI;
Abstract
The present technology relates to a biaxially oriented polypropylene film. The biaxially oriented polypropylene film comprises a polypropylene material having xylene solubles of at least 0.5 percent by weight. The polypropylene also has a strain hardening index of at least 0.15 measured at a deformation rate dε/dt of 1.00 sat a temperature of 180° C. In certain embodiments, the strain hardening index is defined as the slope of a logarithm to the basis 10 of a tensile stress growth function as a function of a logarithm to the basis 10 of a Hencky strain for the range of Hencky strains between 1 and 3.