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:
Jul. 23, 2013
Filed:
Feb. 21, 2011
Richard M. Buck, Bartlesville, OK (US);
Albert P. Masino, Tulsa, OK (US);
Qing Yang, Bartlesville, OK (US);
Paul J. Deslauriers, Owasso, OK (US);
Steven J. Secora, Bartlesville, OK (US);
Elizabeth M. Lanier, Bartlesville, OK (US);
Guylaine St. Jean, Bartlesville, OK (US);
Jon D. Ratzlaff, Bartlesville, OK (US);
Christopher E. Wittner, Bartlesville, OK (US);
Richard M. Buck, Bartlesville, OK (US);
Albert P. Masino, Tulsa, OK (US);
Qing Yang, Bartlesville, OK (US);
Paul J. DesLauriers, Owasso, OK (US);
Steven J. Secora, Bartlesville, OK (US);
Elizabeth M. Lanier, Bartlesville, OK (US);
Guylaine St. Jean, Bartlesville, OK (US);
Jon D. Ratzlaff, Bartlesville, OK (US);
Christopher E. Wittner, Bartlesville, OK (US);
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Abstract
A polymer having a density of from about 0.94 g/cmto about 0.96 g/cmand a primary structure parameter 2 (PSP2 value) of greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of equal to or greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A. A polymer having at least one lower molecular weight component and at least one higher molecular weight component and having a PSP2 value of equal to or greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A.