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1. WO2011024686 - MULTI-LAYER STRUCTURE

Publication Number WO/2011/024686
Publication Date 03.03.2011
International Application No. PCT/JP2010/063928
International Filing Date 18.08.2010
IPC
B32B 27/36 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
36comprising polyesters
B32B 27/30 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
30comprising vinyl resin; comprising acrylic resin
CPC
B32B 2250/42
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2250Layers arrangement
42Alternating layers, e.g. ABAB(C), AABBAABB(C)
B32B 2307/50
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
50having particular mechanical properties
B32B 2307/7166
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
70Other properties
716Degradable
7166Water-soluble, water-dispersible
B32B 2307/748
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
70Other properties
748Releasability
B32B 2439/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2439Containers; Receptacles
B32B 2439/70
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2439Containers; Receptacles
70Food packaging
Applicants
  • 日本合成化学工業株式会社 The Nippon Synthetic Chemical Industry Co., Ltd. [JP]/[JP] (AllExceptUS)
  • 川辺 雅之 KAWABE Masayuki [JP]/[JP] (UsOnly)
  • 渋谷 光夫 SHIBUTANI Mitsuo [JP]/[JP] (UsOnly)
  • 井上 馨 INOUE Kaoru [JP]/[JP] (UsOnly)
  • 酒井 紀人 SAKAI Norihito [JP]/[JP] (UsOnly)
Inventors
  • 川辺 雅之 KAWABE Masayuki
  • 渋谷 光夫 SHIBUTANI Mitsuo
  • 井上 馨 INOUE Kaoru
  • 酒井 紀人 SAKAI Norihito
Agents
  • 西藤 征彦 SAITOH Yukihiko
Priority Data
2009-20093631.08.2009JP
2009-20093731.08.2009JP
2009-20093831.08.2009JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) MULTI-LAYER STRUCTURE
(FR) STRUCTURE MULTICOUCHE
(JA) 多層構造体
Abstract
(EN)
Provided is a multi-layer structure comprising the following layers: a layer (A) consisting primarily of a polyethylene terephthalate resin, which comprises a dicarboxylic acid component that contains terephthalic acid and a diol component that consists primarily of ethylene glycol, wherein the copolymer fraction of non-terephthalic-acid dicarboxylic acids in the dicarboxylic acid component is 15-40 mol% of the entire dicarboxylic acid component; and a layer (B) that is adjacent to the abovementioned layer (A) and consists primarily of a polyvinyl alcohol resin having the structural unit represented by general formula (1). This results in increased interlayer adhesion between the layers (A and B), yielding a multi-layer structure that is highly resistant to separation of the layers thereof. (1) (In formula (1), R1, R2, and R3 each independently represent a hydrogen atom or an organic group, and X represents a single bond or a bond chain. R4, R5, and R6 each independently represent a hydrogen atom or an organic group.)
(FR)
La présente invention concerne une structure multicouche comprenant les couches suivantes: une couche (A) formée principalement d'une résine de polyéthylène téréphtalate, qui comporte un constituant acide dicaboxylique contenant de l'acide téréphtalique et un constituant diol principalement constitué d'éthylène glycol, la fraction copolymère des acides dicarboxyliques acide non téréphtalique dans le constituant acide dicarboxylique étant comprise entre 15 et 40 moles% du constituant acide dicarboxylique tout entier; et une couche (B) qui est adjacente à ladite couche (A) et qui est principalement constituée d'une résine d'alcool de polyvinyle ayant l'unité structurale représentée par la formule développée (1). Ceci produit une meilleure adhérence intercouche entre les couches (A et B), et on obtient une structure multicouche qui est hautement résistante à la séparation des couches qui la composent. Formule (1). (dans la formule (1), R1, R2 et R3 représentent chacun indépendamment un atome d'hydrogène ou un groupe organique, et X représente une liaison simple ou une chaîne de liaison. R4, R5et R6 représentent chacun indépendamment un atome d'hydrogène ou un groupe organique.)
(JA)
 本発明は、テレフタル酸を有するジカルボン酸成分単位と、エチレングリコールを主成分とするジオール成分単位からなり、上記ジカルボン酸成分中のテレフタル酸以外のジカルボン酸の共重合割合が全ジカルボン酸成分の15~40モル%であるポリエチレンテレフタレート系樹脂を主成分として含有する層(A)と、上記層(A)に隣接して、下記の一般式(1)で表される構造単位を有するポリビニルアルコール系樹脂を主成分として含有する層(B)とが積層されてなる層構造(態様〔x〕)を有する多層構造体である。このため、上記層(A)と層(B)との層間接着性が向上し、層間の耐剥離性に優れた多層構造体が得られる。〔上記式(1)中、R,RおよびRは、それぞれ独立して水素原子または有機基を示し、Xは単結合または結合鎖を示す。R,RおよびRは、それぞれ独立して水素原子または有機基を示す。〕
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