MULTILAYER STRUCTURE AND MULTILAYER FORMED ARTICLE

Title:

MULTILAYER STRUCTURE AND MULTILAYER FORMED ARTICLE

Document Type and Number:

WIPO Patent Application WO/2005/058600

Kind Code:

A1

Abstract:

Disclosed is a multilayer structure composed of at least two layers or more including (A) a layer (a) composed of a polyamide 11 and/or a polyamide 12, and (B) a layer (b) composed of a polyamide (polyamide 9N) consisting of dicarboxylic acid units wherein naphthalene dicarboxylate units are contained in an amount of 50 mol% or more relative to the total dicarboxylic acid units, and diamine units wherein 1,9-nonanediamine and/or 2-methyl-1,8-octanediamine units are contained in an amount of 60 mol% or more relative to the total diamine units. The multilayer structure has outstanding alcohol/gasoline permeation preventing properties as well as excellent interlayer adhesion, low-temperature impact resistance and heat resistance.

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Inventors:

NISHIOKA TOMOHARU (JP)
NAKAMURA KOJI (JP)
UCHIDA KOICHI (JP)
KASHIMURA TSUGUNORI (JP)

Application Number:

PCT/JP2004/019274

Publication Date:

June 30, 2005

Filing Date:

December 16, 2004

Export Citation:

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Assignee:

UBE INDUSTRIES (JP)
KURARAY CO (JP)
NISHIOKA TOMOHARU (JP)
NAKAMURA KOJI (JP)
UCHIDA KOICHI (JP)
KASHIMURA TSUGUNORI (JP)

International Classes:

F16L11/04; B32B27/34; C08G69/26; (IPC1-7): B32B27/34

Foreign References:

JP2001311482A	2001-11-09
JPH0912715A	1997-01-14
JPS5067393A	1975-06-06

Other References: