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:
Jul. 13, 2010
Filed:
May. 26, 2003
Teruyuki Yamasaki, Tokyo, JP;
Akira Shirakura, Tokyo, JP;
Hideyasu Ando, Tokyo, JP;
Kirin Brewery Company, Limted, Tokyo, JP;
Abstract
The present invention provides a plastic container or bottle having an inner wall surface coated with a DLC film which has the same level of oxygen barrier property as prior art DLC coated containers while at the same time preventing the coloration of the neck portion found in the containers of the prior art. The DLC film formed on the neck portion of the inventive bottle has a lower graphite mixing proportion than the DLC film formed on body portion, and the oxygen permeability of the container is less than or equal to 0.0050 ml/container (500 ml PET container)/day. The apparatus and the method of producing such a bottle are also described.