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. 11, 2013
Filed:
May. 22, 2012
James Mcgoldrick, Marchtrenk, AT;
Franz Ruemer, St. Georgen/Gusen, AT;
Stefan Schiesser, Leonding, AT;
Siegfried Liedauer, Wilhering, AT;
James McGoldrick, Marchtrenk, AT;
Franz Ruemer, St. Georgen/Gusen, AT;
Stefan Schiesser, Leonding, AT;
Siegfried Liedauer, Wilhering, AT;
Other;
Abstract
The invention relates to novel propylene polymers with improved properties especially with improved stiffness and impact strength comprising propylene homopolymers or propylene block copolymers with 90.0 to 99.9 wt % propylene and 0.1 to 10 wt % α-olefins with 2 or 4 to 18 carbon atoms, or mixtures thereof, wherein the propylene homopolymers or propylene block copolymers are β-nucleated propylene polymers, whereby the β-nucleated propylene homopolymers have an Irτ≧0.98 and the values for tensile modulus and Charpy impact strength as specified herein. The β-nucleated propylene block copolymers are polymers having an IRτ of the propylene homopolymer block of ≧0.98 and the values for tensile modulus and Charpy impact strength as also specified herein. The propylene polymers with an improved property spectrum are suitable for producing molded parts in a pipe system, such as pipes and fittings, inspection chambers, pipe ducting systems, extrusion or compression molded sheets and the like.