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:
Sep. 30, 2003
Filed:
May. 02, 2001
Norihisa Hirota, Yokohama, JP;
Atsushi Kikuchi, Kawasaki, JP;
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Abstract
The invention provides a highly heat-stable polyester container and a method of manufacturing the polyester container, which can be treated by retort sterilization at a high temperature after filling food, a drink or the like in the container and sealing off it, and which has superior heat stability enough to prevent deformation and whitening due to heat shrinkage in a bottom portion of the container even when treated by the retort sterilization. In the polyester container, a barrel portion and a bottom portion of the container are heat-set, and at least the bottom portion of the container has an endothermic peak on a DSC curve in the range of not lower than about 150° C. but not higher than a melting start point.