RESIN COMPOSITION, MOLDED ARTICLE, MULTILAYERED PIPE AND METHOD FOR PRODUCING THE SAME

Title:

RESIN COMPOSITION, MOLDED ARTICLE, MULTILAYERED PIPE AND METHOD FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/2011/125736

Kind Code:

A1

Abstract:

Provided is a multilayered pipe having a layer formed from a resin composition comprising EVOH. The multilayered pipe has excellent gas barrier performance even with long-term use under high temperatures because there is unlikely to be cracking associated with oxidative degradation of the EVOH layer. Also provided is a resin composition for obtaining the pipe. The resin composition comprises, with respect to (A) 100 parts by mass of an ethylene-vinyl alcohol copolymer, (B) 0.001 to 5 part by mass of an antioxidant and (C) 0.00001 to 0.3 part by mass of a conjugated polyene compound having a molecular weight of 1,000 or less.

Inventors:

KAZETO OSAMU (JP)
HIROSE WATARU (JP)

Application Number:

PCT/JP2011/058005

Publication Date:

October 13, 2011

Filing Date:

March 30, 2011

Export Citation:

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Assignee:

KURARAY CO (JP)
KAZETO OSAMU (JP)
HIROSE WATARU (JP)

International Classes:

C08L29/04; B29C48/09; B29C48/18; B29C48/32; C08K5/00; C08K5/01; C08K5/09; C08K5/13; C08K5/3432; F16L9/14; F16L11/04

Domestic Patent References:

WO2001027515A1

2001-04-19

Foreign References:

JP2001206999A	2001-07-31
JP2004526835A	2004-09-02
JP2003012944A	2003-01-15
JP2007314788A	2007-12-06
JPS63286459A	1988-11-24
JP2004114389A	2004-04-15
JPH0274341A	1990-03-14
JP2005325877A	2005-11-24
JP2005047105A	2005-02-24
JP2001041360A	2001-02-13
JP2000352480A	2000-12-19
JPS61140691A	1986-06-27
JPH0274341A	1990-03-14
JPS63286459A	1988-11-24
JPH04227744A	1992-08-17
EP0634602A1	1995-01-18
EP1355103A1	2003-10-22
JPH0971620A	1997-03-18

Other References: