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:
Feb. 07, 1989
Filed:
Aug. 31, 1987
Applicant:
Inventors:
Yoshitsugu Maruhashi, Yokohama, JP;
Setsuko Iida, Yokohama, JP;
Takashi Sugisaki, Yokohama, JP;
Yohji Mizutani, Tokyo, JP;
Nobuhiro Kishida, Tokyo, JP;
Assignee:
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264526 ; 264523 ; 264535 ;
Abstract
A process for the preparation of a heat-resistant polyester hollow formed body, which comprises mounting a preform of a thermoplastic polyester composed mainly of ethylene terephthalate units, which is maintained at a temperature where high-speed drawing is possible but whitening can be prevented, especially at a temperature represented by the following formula: