Title:
THERMOPLASTIC MULTILAYER RESIN SHEET AND FOOD PACKAGING CONTAINER COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2015/041100
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a thermoplastic resin sheet having good water vapor barrier properties, as well as exhibiting exceptional interlayer adhesion, without the interposition of an adhesive layer. The problem is solved by through a thermoplastic multilayer resin sheet having a layer configuration including an inner layer (A) containing a mixture of a styrene resin and an olefin resin, intermediate layers (B) laminated to either side of the inner layer (A), and containing a mixture of a styrene resin and an olefin resin in which the mixture proportion of the olefin resin is lower as compared with the mixture of the inner layer (A), and outer layers (C) further laminated to the outside of the intermediate layers (B) and containing a styrene resin, the sheet having a morphology in which 80% or more of the olefin resin domains in the cross section of the resin layers in the inner layer (A) and the intermediate layers (B) have an aspect ratio (length of long axis/length of short axis) of 10 or greater.
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Inventors:
NAGAOKA KOUTA (JP)
KOMODA FUKUMU (JP)
NAKAZATO TOSHIKATSU (JP)
KOMODA FUKUMU (JP)
NAKAZATO TOSHIKATSU (JP)
Application Number:
PCT/JP2014/073804
Publication Date:
March 26, 2015
Filing Date:
September 09, 2014
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KK (JP)
International Classes:
B32B27/30; B32B27/00; B32B27/32; B65D65/40; B65D81/24
Domestic Patent References:
| WO2009069742A1 | 2009-06-04 |
Foreign References:
| JP2009292504A | 2009-12-17 | |||
| JPH11302326A | 1999-11-02 | |||
| JP2000034355A | 2000-02-02 | |||
| JP2002020636A | 2002-01-23 | |||
| JP2008213355A | 2008-09-18 | |||
| JP2000136251A | 2000-05-16 |
Attorney, Agent or Firm:
SONODA Yoshitaka et al. (JP)
Yoshitaka Sonoda (JP)
Yoshitaka Sonoda (JP)
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