Title:
GAS-BARRIER RESIN COMPOSITION AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/021890
Kind Code:
A1
Abstract:
The present invention relates to a gas-barrier resin composition which comprises a gas-barrier resin (A) having a coefficient of oxygen permeability of 1.0×10-14 (cm3∙cm/cm2∙s∙Pa) or less and a copolymer (B) containing structural monomer units represented by general formulae (1), (2), and (3) (wherein R1 represents a hydrogen atom or a methyl group; R2 represents a C1-20 hydrocarbon group optionally substituted by a halogen atom, hydroxy group, alkoxy group, or amino group; l, m, and n are numerals respectively indicating the molar proportions of the structural monomer units, and n may be 0; and p is an integer of 1 to 4), wherein the copolymer (B) is contained in an amount of 1-40 mass% with respect to the sum of the gas-barrier resin (A) and the copolymer (B). Preferred as the gas-barrier resin (A) are vinyl alcohol-based resins (A1), polyamide-based resins (A2), and polyester-based resins (A3). The present invention can provide the resin composition, which retains the excellent gas-barrier properties inherent in the gas-barrier resin and in which low flexibility and low impact resistance which are drawbacks of the gas-barrier resin have been improved.
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Inventors:
KURODA JUNICHI (JP)
OKUMURA YOSHIKUNI (JP)
HAYASHI SHINYA (JP)
UEMATSU MASAHIRO (JP)
HATTORI TAKAAKI (JP)
YASUKAWA YUUICHIRO (JP)
OKUMURA YOSHIKUNI (JP)
HAYASHI SHINYA (JP)
UEMATSU MASAHIRO (JP)
HATTORI TAKAAKI (JP)
YASUKAWA YUUICHIRO (JP)
Application Number:
PCT/JP2018/026766
Publication Date:
January 31, 2019
Filing Date:
July 17, 2018
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
JAPAN POLYETHYLENE CORP (JP)
JAPAN POLYETHYLENE CORP (JP)
International Classes:
C08L101/12; B32B27/00; C08F8/12; C08L23/08; C08L29/04
Domestic Patent References:
| WO2013168626A1 | 2013-11-14 |
Foreign References:
| JP2002145947A | 2002-05-22 | |||
| JP2017031300A | 2017-02-09 | |||
| JPS5388067A | 1978-08-03 | |||
| JPS52141785A | 1977-11-26 | |||
| JPS5920345A | 1984-02-02 | |||
| JPH08239528A | 1996-09-17 | |||
| JP2000212369A | 2000-08-02 | |||
| JPH0715059B2 | 1995-02-22 | |||
| JPH09183900A | 1997-07-15 | |||
| US5780577A | 1998-07-14 | |||
| JP2006241398A | 2006-09-14 | |||
| JP2016191009A | 2016-11-10 | |||
| JP2014159540A | 2014-09-04 |
Other References:
"Polymer handbook", 1999, JOHN WILEY & SONS, INC.
See also references of EP 3660105A4
See also references of EP 3660105A4
Attorney, Agent or Firm:
OHIE Kunihisa et al. (JP)
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