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. 10, 2004
Filed:
Dec. 18, 2001
Hisashi Ubara, Otsu, JP;
Tetsuo Kodama, Otsu, JP;
Naoki Mizuno, Turuga, JP;
Yoshimitsu Sakaguchi, Otsu, JP;
Ken Takasugi, Otsu, JP;
Syunji Kurahara, Otsu, JP;
Koichi Matsuda, Turuga, JP;
Shoichi Gyobu, Otsu, JP;
Yusuke Shimizu, Otsu, JP;
Hidekazu Yoshida, Osaka, JP;
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Abstract
An oxygen-absorbing material including a transition metal compound and one or more thermoplastic resins, when used for a molded product such as container, exhibits excellent gas-barrier and oxygen-absorbing properties. The material absorbs oxygen from contents and blocks oxygen from entering so that the contents can be maintained in an oxygen-free state for a long period of time. An excellent oxygen-absorbing property is achieved by an amino group content of 20 mmol/kg or lower in at least one thermoplastic resin and by lowering the crystallinity of the thermoplastic resin.