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1. (WO2018084187) MULTILAYER STRUCTURE AND USE OF SAME
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Pub. No.: WO/2018/084187 International Application No.: PCT/JP2017/039570
Publication Date: 11.05.2018 International Filing Date: 01.11.2017
IPC:
B32B 27/28 (2006.01) ,B65D 1/02 (2006.01) ,B65D 65/40 (2006.01) ,C08L 29/04 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
28
comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
D
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
1
Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
02
Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
D
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
65
Wrappers or flexible covers; Packaging materials of special type or form
38
Packaging materials of special type or form
40
Applications of laminates for particular packaging purposes
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
29
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
02
Homopolymers or copolymers of unsaturated alcohols
04
Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
Applicants:
株式会社クラレ KURARAY CO., LTD. [JP/JP]; 岡山県倉敷市酒津1621番地 1621, Sakazu, Kurashiki-shi, Okayama 7100801, JP
Inventors:
鈴木 真 SUZUKI, Makoto; JP
川上 直樹 KAWAKAMI, Naoki; JP
Agent:
特許業務法人せとうち国際特許事務所 SETOUCHI INTERNATIONAL PATENT FIRM; 岡山県岡山市北区今4丁目9番1号 グロース第2ビル Growth-2 Building, 4-9-1, Ima, Kita-ku, Okayama-shi, Okayama 7000975, JP
Priority Data:
2016-21488402.11.2016JP
Title (EN) MULTILAYER STRUCTURE AND USE OF SAME
(FR) STRUCTURE MULTICOUCHE ET SON UTILISATION
(JA) 多層構造体及びその用途
Abstract:
(EN) Provided is a multilayer structure which has a layer formed from a resin composition that contains an ethylene-vinyl alcohol copolymer (A) and a thermoplastic elastomer (B), and which is characterized in that: the mass ratio of the ethylene-vinyl alcohol copolymer (A) to the thermoplastic elastomer (B), namely the mass ratio (A)/(B) is from 65/35 to 95/5; and one surface of the layer formed from the resin composition is directly adjacent to a layer which is formed from a polyolefin (C1) that does not have a polar functional group. Consequently, the present invention provides a multilayer structure which has excellent gas barrier properties, transparency and flexibility, while having good separability between a layer formed from a resin composition and a layer formed from a polyolefin that does not have a polar functional group.
(FR) L'invention concerne une structure multicouche dont une couche est formée à partir d'une composition de résine contenant un copolymère éthylène-alcool vinylique (A) et un élastomère thermoplastique (B). La structure multicouche se caractérise en ce que: le rapport massique du copolymère éthylène-alcool vinylique (A) à l'élastomère thermoplastique (B), à savoir le rapport massique (A)/(B) est de 65/35 à 95/5. Une surface de la couche formée à partir de la composition de résine est directement adjacente à une couche formée à partir d'une polyoléfine (C1) ne possédant pas de groupe fonctionnel polaire. Par conséquent, l'invention concerne une structure multicouche qui présente d'excellentes propriétés barrière aux gaz, de transparence et de souplesse, tout en ayant une bonne séparabilité entre une couche formée à partir d'une composition de résine et une couche formée à partir d'une polyoléfine ne possédant pas de groupe fonctionnel polaire.
(JA) エチレン-ビニルアルコール共重合体(A)及び熱可塑性エラストマー(B)を含む樹脂組成物からなる層を有する多層構造体であって、エチレン-ビニルアルコール共重合体(A)と熱可塑性エラストマー(B)との質量比(A/B)が65/35~95/5であり、前記樹脂組成物からなる層の一方の面が、極性官能基を有さないポリオレフィン(C1)からなる層と直接隣接されている多層構造体であることを特徴とする。これにより、ガスバリア性、透明性及び柔軟性に優れるとともに、樹脂組成物からなる層と極性官能基を有さないポリオレフィンからなる層との剥離性が良好である多層構造体が提供される。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)