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.

Date of Patent:
Apr. 24, 2007

Filed:

Mar. 10, 2004
Applicants:

Keizo Michihata, Kurashiki, JP;

Nahoto Hayashi, Kurashiki, JP;

Inventors:

Keizo Michihata, Kurashiki, JP;

Nahoto Hayashi, Kurashiki, JP;

Assignee:

Kuraray Co., Ltd., Kurashiki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 22/00 (2006.01); B29D 23/00 (2006.01); B32B 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fuel container with high fuel barrier properties is provided. The fuel container is a coextrusion blow-molded fuel container having a container body made of a layered structure. The layered structure comprises: a barrier layer made of a barrier resin (A); and an inner layer and an outer layer made of a thermoplastic resin (B) that is different from the barrier resin (A); wherein a ratio (X/Y) of a distance (X) between end portions of the barrier layer at a pinch-off part of the fuel container and an average thickness (Y) of the container body is at least 1/10000 and at most 1/10; and wherein a ratio (Y1/Y) between a total thickness (Y1) of the layers of the container body that are located on the inside with respect to the barrier layer and an average thickness (Y) of the container body is at least 3/10 and at most 7/10.


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