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. 04, 1992
Filed:
Nov. 18, 1988
Shigezo Nohara, Yokohama, JP;
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Abstract
A multi-layer drawn polyester bottle has a neck portion having an opening on the top end and a fitted or screwed part on the periphery, a bottom portion formed by fusion bonding and closing of a pipe and a barrel portion biaxially molecularly oriented by draw-blowing of the pipe. The pipe is composed of a co-extrudate of inner and outer surface base layers of polyethylene terephthalate and an intermediate layer of an ethylene-vinyl alcohol copolymer having an ethylene content lower than 50 mole %. This multi-layer drawn polyester bottle is prepared by co-extrusion a multi-layer pipe using the coextrudate and, if necessary, interposing an adhesive layer between the two resin layers, cutting the pipe into a predetermined length, closing one end of the cut pipe by fusion bonding to form a bottom portion, forming the other end of the cut pipe into a neck portion having an opening on the top end and a fitted or screwed part on the periphery, pre-heating the so-obtained preform at a drawing temperature of 85.degree. to 120.degree. C. and subjecting the preform to draw-blow-forming biaxially in the axial direction and circumferential direction in a blow-forming mold.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile