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. 16, 2010
Filed:
Aug. 19, 2003
Norihisa Hirota, Kanagawa, JP;
Satoshi Shibata, Kanagawa, JP;
Norihisa Hirota, Kanagawa, JP;
Satoshi Shibata, Kanagawa, JP;
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Abstract
A biaxially oriented polyester container with a uniformly and sufficiently elongated and thin-walled bottom part having excellent drop strength, improved ESC resistance and reduced weight, and a method of manufacturing the container. The biaxially oriented polyester container of the present invention is characterized in that, when an X-ray diffraction measurement is performed in and near a bottom center area of the biaxially oriented polyester container formed by a double-stage orientation blow molding method, a peak indicative of molecular orientation is observed near a diffraction angle of 2θ=15 to 30° and an orientation parameter (BO) expressed by the following formula (1) is in the range of 0.5≦BO≦2 in and near the bottom center area:orientation parameter ()=  (1)(where Ix indicates a diffraction intensity near the diffraction angle of 2θ=15 to 30° when the X-ray diffraction measurement is performed in the X-direction, and Iy indicates a diffraction intensity near the diffraction angle of 2θ=15 to 30° when the X-ray diffraction measurement is performed in a direction orthogonal to that for Ix).