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:
Jul. 25, 2005
Ryo Suenaga, Yokohama, JP;
Tsutomu Iwasaki, Yokohama, JP;
Taku Hosokai, Yokohama, JP;
Toshiki Sakaguchi, Yokohama, JP;
Hisao Iwamoto, Yokohama, JP;
Ryo Suenaga, Yokohama, JP;
Tsutomu Iwasaki, Yokohama, JP;
Taku Hosokai, Yokohama, JP;
Toshiki Sakaguchi, Yokohama, JP;
Hisao Iwamoto, Yokohama, JP;
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Abstract
A polyester container obtained by stretch-forming a preform of a thermoplastic polyester resin formed by injection forming wherein the central portion of the bottom wall is the remaining part of the gate at the time of injection forming, and is formed relatively thicker than the bottom wall surrounding the central portion, and the central portion of the bottom wall is substantially amorphous, and the bottom wall surrounding the central portion is oriented and crystallized. The container exhibits excellent heat resistance and shock resistance despite a thick portion that is the remaining portion of the injection gate is formed at the center of the bottom portion.