MULTILAYER CONTAINER - TOYO SEIKAN GROUP HOLDINGS LTD

Title:

MULTILAYER CONTAINER

Document Type and Number:

WIPO Patent Application WO/2018/168965

Kind Code:

A1

Abstract:

The present invention relates to a multilayer container which uses a propylene polymer as a main starting material. The present invention specifically relates to a multilayer container which has barrier properties, and is provided with at least a layer that is formed of a propylene polymer which is mainly composed of a homopolypropylene having an isotactic index of 93% or more and a layer that is formed of an ethylene-vinyl alcohol copolymer which has two or more crystal melting peak temperatures. The present invention also specifically relates to a multilayer container which has gloss and impact resistance, and is provided with at least outermost layers that are formed of a propylene polymer A which is mainly composed of a homopolypropylene having a melt flow rate of 2.0-10 g/10 min and an inner layer that is formed of a propylene polymer B which is mainly composed of a homopolypropylene having a melt flow rate of 1.0 g/10 min or less.

Inventors:

TASHIRO YUUKI (JP)
ISHIHARA TAKAYUKI (JP)
OTSUKI AZUSA (JP)

Application Number:

PCT/JP2018/010075

Publication Date:

September 20, 2018

Filing Date:

March 14, 2018

Export Citation:

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Assignee:

TOYO SEIKAN GROUP HOLDINGS LTD (JP)

International Classes:

B32B27/00; B65D65/40; B32B27/08; B32B27/28; B32B27/32

Domestic Patent References:

WO2014051093A1

2014-04-03

Foreign References:

JP2001058374A	2001-03-06
JP2004276240A	2004-10-07
JPH0691827A	1994-04-05
JPH10244610A	1998-09-14
JP2000318095A	2000-11-21
JP4894066B2	2012-03-07
JP2011126544A	2011-06-30
JPH09109340A	1997-04-28
JP2015058644A	2015-03-30

Other References: