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. 08, 2008
Filed:
Jul. 21, 2005
Arnold Lustiger, Edison, NJ (US);
David John Lohse, Bridgewater, NJ (US);
Blair A. Graham, Bright's Grove, CA;
Barry C. Trudell, Sarnia, CA;
Arnold Lustiger, Edison, NJ (US);
David John Lohse, Bridgewater, NJ (US);
Blair A. Graham, Bright's Grove, CA;
Barry C. Trudell, Sarnia, CA;
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
Polyethylene blend compositions suitable for injection molding, injection molded articles, and processes for injection molding articles are provided. The polyethylene compositions include a first polyethylene having a melt index of 0.1 to 3.0 g/10 min and a density of from 0.905 to 0.938 g/cm; and a second polyethylene having a melt index of 10 to 500 g/10 min and a density of 0.945 to 0.975 g/cm. The compositions have a density of from 0.920 to 0.973 g/cmand a melt index of 2 to 200 g/10 min, and the density of the second polyethylene is from 0.037 to 0.062 g/cmgreater than the density of the first polyethylene. The compositions exhibit improved physical properties, such as Environmental Stress Crack Resistance, relative to conventional compositions of similar melt index and density. In certain embodiments, the compositions, and articles produced therefrom, also exhibit an improved balance of toughness properties and processability properties.