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:
May. 07, 2024
Filed:
Apr. 03, 2020
Yoshino Kogyosho Co., Ltd., Tokyo, JP;
YOSHINO KOGYOSHO CO., LTD., Tokyo, JP;
Abstract
A method for producing a delamination container, wherein the delamination container includes an outer layer body constituting an outer shell of the container and an inner layer body that is laminated on an inner side of the outer layer body in a manner such that the inner layer body is peelable from the outer layer body. The inner layer body comprises an ethylene-vinyl alcohol copolymer resin, and is deformable to undergo volume reduction and the outer layer body includes an outer layer body's inside sub-layer that is located adjacent to the inner layer body and that is made of a polypropylene resin and an outer layer body's outside sub-layer that is located on an outer side of the container relative to the outer layer body's inside sub-layer and that is made of a polyethylene resin. The method comprises a process to form the delamination container by co-extruding resins in a molted state to prepare a cylindrical laminated parison and blow molding the prepared laminated parison.