[특허]Multilayered structure

Multilayered structure 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-001/02 B32B-027/30 B65D-001/28
출원번호	US-0589805 (2000-06-09)
우선권정보	JP-0164956 (1999-06-11); JP-0236424 (1999-08-24)
발명자 / 주소	Hayashi, Nahoto Shimo, Hiroyuki Nemoto, Kaoru Negishi, Kazuhiko
출원인 / 주소	Kuraray Co., Ltd.
대리인 / 주소	Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
인용정보	피인용 횟수 : 37 인용 특허 : 10

초록 ▼

The present invention provides a multilayered structure where an A layer made of an ethylene-vinyl alcohol copolymer resin (A) and a C layer made of a polypropylene resin (C) are laminated via a B layer made of an adhesive resin (B). The ethylene content of the ethylene-vinyl alcohol copolymer resin (A) is 20 to 60 mol %, and the saponification degree of the resin (A) is at least 90%. The melt flow rate (MFR) of the polypropylene resin (C) at 230° C. under a load of 2160 g is in the range from 0.1 to 100 g/10 min, and the stereoregularity index [M5] of the polypropylene resin (C) is at least 0.950. Such a multilayered structure has excellent gas barrier properties and moldability.

대표청구항 ▼

1. A transparent multilayered structure comprising an A layer comprising ethylene-vinyl alcohol copolymer resin(s) (A) and a C layer comprising a polypropylene resin (C) which are laminated via a B layer comprising an adhesive resin (B), wherein the ethylene content of said ethylene-vinyl alcohol copolymer resin(s) (A) is 20 to 60 mol %, and the saponification degree of said ethylene-vinyl alcohol copolymer resin(s) (A) is at least 90%, the melt flow rate (MFR) of said polypropylene resin (C) at 230° C. under a load of 2160 g is in a range from 0.1 to 100 g/10 min, and the stereoregularity index [M5] of said polypropylene resin (C) defined by Equation 1, with absorption intensities of Pmmmm and Pw in the 13C-NMR spectrum of a boiling heptane insoluble component of said polypropylene resin (C), is at least 0.950,

이 특허에 인용된 특허 (10)

Mazuera Gonzalo E. (Farmington NY) Wagner ; Jr. John R. (Rochester NY), Biaxially oriented multilayer barrier films.
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Foster, Ronald H., Biaxially oriented oxygen and moisture barrier film.
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Shimo Hiroyuki (Kurashiki JPX) Kanesige Isao (Kurashiki JPX) Tanaka Nobuo (Nishinomiya JPX), Laminate with a blend layer of polyesteramide and ethylene-vinyl acetate copolymer.
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Suzuki ; Toru ; Hirata ; Shunsaku ; Yazaki ; Jinichi ; Miyazaki ; Shinic hi ; Nohara ; Shigezo, Multi-layer blow molded container and process for preparation thereof.
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Yazaki Jinichi (Tokyo JPX) Tsurumaru Kazuhiko (Tokyo JPX), Packaging material.
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Nohara Yasuhiro,JPX ; Watanabe Kazuyuki,JPX, Propylene resin composition, molded articles thereof and propylene resin laminate.
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Shimo Hiroyuki,JPX ; Haneda Yasuhiko,JPX ; Kanao Syuichi,JPX, Resin composition.
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Hata Nobihiro,JPX ; Shimo Hiroyuki,JPX, Thermoformable multilayer film and thermoformed container.
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Sanders Andrea (Katy Houston TX) Himes Glenn R. (Houston TX), Tie layer composition and laminated structures containing same.
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이 특허를 인용한 특허 (37)

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Curry,Christopher L.; Datta,Sudhin, Elastic blends of semicrystalline propylene polymers and high glass transition temperature materials.
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Li, Wen; Lin, Chon-Yie; Chapman, Bryan R.; Kelly, Michael B., Fibers and nonwovens from plasticized polyolefin compositions.
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Turvey, Robert R.; Dais, Brian C.; Zimmerman, Daniel P.; Griffioen, Kelly M., Flow channels for a pouch.
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Mehta,Aspy K.; Datta,Sudhin; Li,Wen; Iyer,Srivatsan S., Heterogeneous polymer blends and molded articles therefrom.
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Keusenkothen, Paul F.; Brown, Stephen H., Hydrocarbon resid processing and visbreaking steam cracker feed.
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Keusenkothen, Paul F; Brown, Stephen H., Hydrocarbon resid processing and visbreaking steam cracker feed.
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Chapman, Bryan R.; Valentage, Jeffrey; Hill, Jared M.; Lundmark, Bruce R., Plasticized hetero-phase polyolefin blends.
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Lundmark, Bruce R.; Chapman, Bryan R.; Schregenberger, Sandra Denise; Lohse, David J., Plasticized polyolefin compositions.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Multilayered structure 원문보기