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. 18, 2008
Filed:
Nov. 05, 2004
Abel Grosjean, Shoreacres, TX (US);
Steven Don Sandstrum, Kingwood, TX (US);
John Mark Zimmerman, Houston, TX (US);
Abel Grosjean, Shoreacres, TX (US);
Steven Don Sandstrum, Kingwood, TX (US);
John Mark Zimmerman, Houston, TX (US);
Ineos Manufacturing Belgium NV, Antwerp, BE;
Abstract
The invention relates to a polymer of ethylene which has a μ/μratio of at least 13; and a high load melt index HLMI lower than 8 g /10 min, and a value of tan δ at ω/ωc=0.01 of less than 1.3, where δ is G″/G', ω is the frequency at which G″ and G′ are measured and we is the frequency at which G″=G′, and G and G″ are respectively the elastic modulus and viscous modulus, both measured in Pa at 190° C.; a process for making the polymer using a catalyst comprising chromium supported on a silica-titania support is also described.