- 专利标题： LAMINATED BODY AND LIQUID PACKAGING BAG
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申请号： EP19771374.6申请日： 2019-03-18
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公开(公告)号： EP3769963A1公开(公告)日： 2021-01-27
- 发明人: FUJII, Sumiaki , SUZUKI, Masao , SEKIYA, Keiko , SAITOU, Tetsuya
- 申请人： Prime Polymer Co., Ltd.
- 申请人地址： JP Tokyo 105-7122 5-2, Higashi-Shimbashi 1-chome Minato-ku
- 代理机构： J A Kemp LLP
- 优先权： JP2019010338 20190124
- 国际公布： WO2019181842 20190926
- 主分类号： B32B27/32
- IPC分类号： B32B27/32 ; B65D65/40
摘要：
[Object]
A laminate is provided which can form packaging bags having a wide range of packaging feasible temperatures and excellent high-speed liquid packaging properties.
[Solution]
The laminate includes a sealant layer and an intermediate layer disposed in contact with the sealant layer, the sealant layer including an ethylene/α-olefin copolymer satisfying the requirements (x0) to (x3).
(x0) The copolymer is a copolymer of ethylene and a C3-C20 α-olefin.
(x1) The MFR is 1 to 50 g/10 min.
(x2) The density is 890 to 910 kg/m 3 .
(x3) 0.35 ≤ ΔH (80)/ΔH ≤ 0.85, and 0.60 ≤ ΔH (100)/ΔH ≤ 0.85, wherein ΔH is the total heat of melting observed during DSC, and ΔH (T) is the heat of melting observed during heating from 0°C to T°C.
A laminate is provided which can form packaging bags having a wide range of packaging feasible temperatures and excellent high-speed liquid packaging properties.
[Solution]
The laminate includes a sealant layer and an intermediate layer disposed in contact with the sealant layer, the sealant layer including an ethylene/α-olefin copolymer satisfying the requirements (x0) to (x3).
(x0) The copolymer is a copolymer of ethylene and a C3-C20 α-olefin.
(x1) The MFR is 1 to 50 g/10 min.
(x2) The density is 890 to 910 kg/m 3 .
(x3) 0.35 ≤ ΔH (80)/ΔH ≤ 0.85, and 0.60 ≤ ΔH (100)/ΔH ≤ 0.85, wherein ΔH is the total heat of melting observed during DSC, and ΔH (T) is the heat of melting observed during heating from 0°C to T°C.
公开/授权文献
- EP3769963B1 LAMINATED BODY AND LIQUID PACKAGING BAG 公开/授权日：2023-11-15
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