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:
May. 22, 2007
Filed:
Jun. 11, 2002
David B. Dunaway, Houston, TX (US);
David B. Dunaway, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
In one embodiment, the present invention is directed to an article, such as a blow-molded bottle, formed from a polymer blend composition. In one aspect, the article is formed by blow-molding techniques. In one aspect, the article is a blow-molded container having a Bruceton Mean Drop Height of 3.8 feet or above. In another aspect, the article is a blow-molded container having a volume of 60 fluid ounces or greater. In general, the polymer blend composition comprises polypropylene and an impact modifier of metallocene-produced very low density polyethylene or linear low density polyethylene. In one embodiment, the polypropylene polymer comprises a random copolymer. In one embodiment the metallocene-catalyzed linear very low density polyethylene polymer has one or more of the following: (a) a density of less than 0.916 g/cm, (b) a composition distribution breadth index of 50 to 85% by weight, (c) a molecular weight distribution Mw/Mn of 2.0 to 3.0, (d) a molecular weight distribution Mz/Mw of less than 2.0, and (e) two peaks in a TREF measurement. In one embodiment, the polymer blend composition comprises 5% to 85% of the impact modifier and 95% to 15% of the polypropylene polymer, based on the total combined weight of the polypropylene polymer and the impact modifier. In another embodiment, the polymer blend composition comprises 5% to 35% of the impact modifier and 95% to 65% of the polypropylene polymer, based on the total combined weight of the polypropylene polymer and the impact modifier.