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公开(公告)号：US20170218147A1
公开(公告)日：2017-08-03
申请号：US15488063
申请日：2017-04-14
Applicant: KURARAY CO., LTD.
Inventor： Yusuke NOJIMA , Yusuke TANAKA , Yosuke JOGO , Shinya OSHITA
CPC classification number: C08J5/18 , A61J1/00 , A61J1/05 , A61J1/10 , A61J1/1468 , B32B1/02 , B32B25/08 , B32B25/12 , B32B25/16 , B32B27/08 , B32B27/302 , B32B27/32 , B32B2250/242 , B32B2307/7265 , B32B2439/46 , B32B2553/00 , B65D65/40 , C08J2323/12 , C08J2323/14 , C08J2453/02 , C08L23/12 , C08L23/14 , C08L2203/02 , C08L2203/16 , C08L2205/02 , Y10T428/1393 , C08L53/025
Abstract: A film for a liquid packaging container, comprising at least one of a layer containing a resin composition (X) containing a polypropylene resin (a) and at least one of a hydrogenated block copolymer (b), the hydrogenated block copolymer (b) being a hydrogenated product of a block copolymer containing a polymer block (A) mainly containing an aromatic vinyl compound unit, and a polymer block (B) mainly containing an isoprene (Ip) unit, a butadiene (Bd) unit, or isoprene (Ip) and butadiene (Bd) units, in the resin composition (X), the hydrogenated block copolymer (b) having a phase separation structure having formed therein both (i) an island phase having a long axis of 1 μm or more, or a bicontinuous structure, and (ii) an island phase having a long axis of 300 nm or less, and in the resin composition (X), the mass ratio ((a)/((a)+(b))) of the polypropylene resin (a) and the hydrogenated block copolymer (b) being from 61/100 to 95/100.
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公开(公告)号：US20160287474A1
公开(公告)日：2016-10-06
申请号：US15034749
申请日：2015-04-08
Applicant: KURARAY CO., LTD.
Inventor： Yusuke TANAKA , Yosuke JOGO , Yusuke NOJIMA , Shinya OSHITA
CPC classification number: A61J1/1468 , A61J1/10 , B32B27/08 , B32B27/30 , B32B27/302 , B32B27/32 , B32B2250/246 , B32B2270/00 , B32B2274/00 , B32B2307/308 , B32B2307/31 , B32B2307/402 , B32B2307/54 , B32B2307/546 , B32B2307/558 , B32B2307/5825 , B32B2307/732 , B32B2439/46 , B32B2439/70 , B32B2439/80
Abstract: Provided is a liquid packaging container having satisfactory flexibility and transparency, high heat-seal strength, high bag-breaking strength at normal temperature and low temperatures, and low (inner layer)-(inner layer) adhesiveness, which are properties important for liquid packaging containers for medical use. Specifically, provided is a liquid packaging container formed from a laminate of at least three layers including an inner layer formed from a resin composition (Y) as described below, an intermediate layer, and an outer layer formed from a resin composition (Z) as described below, the intermediate layer being formed from a resin composition (X) as described below: resin composition (X): a resin composition including 100 parts by mass of a polypropylene-based resin (1), 5 parts by mass to 95 parts by mass of a particular thermoplastic elastomer (2), and 10 parts by mass to 95 parts by mass of a particular ethylene-α-olefin copolymer (3); resin composition (Y): a resin composition including 100 parts by mass of a polypropylene-based resin (1′), and 5 parts by mass to 250 parts by mass of a particular thermoplastic elastomer (2′) (provided that a particular ethylene-α-olefin copolymer is not included or, if included, the content of the copolymer is less than 10 parts by mass); and resin composition (Z): a resin composition including 100 parts by mass of a polypropylene-based resin (1″), and 0 parts by mass to 35 parts by mass of a particular thermoplastic elastomer (2″).
Abstract translation: 本发明提供一种液体包装容器，具有良好的柔软性和透明性，高的热封强度，常温和低温下的破碎强度以及低（内层） - （内层）粘附性，这对于液体包装是重要的 医疗用容器 具体地说，提供一种液体包装容器，它是由至少三层的叠层形成的，其中包括由下述树脂组合物（Y）形成的内层，中间层和由树脂组合物（Z）形成的外层 中间层由如下所述的树脂组合物（X）形成：树脂组合物（X）：包含100质量份聚丙烯类树脂（1）的树脂组合物，5质量份〜95份 的特定的热塑性弹性体（2）和10质量份〜95质量份的特定的乙烯-α-烯烃共聚物（3）; 树脂组合物（Y）：包含100质量份聚丙烯类树脂（1'）和5质量份〜250质量份特定热塑性弹性体（2'）的树脂组合物（条件是特定的乙烯 - 不包括α-烯烃共聚物，或者如果包括共聚物的含量小于10质量份）。 和树脂组合物（Z）：包含100质量份聚丙烯类树脂（1“）和0质量份〜35质量份特定热塑性弹性体（2”）的树脂组合物。
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