- 专利标题： LAMINATES AND LIQUID PACKAGING BAGS
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申请号： US16969149申请日： 2019-03-18
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公开(公告)号： US20210039364A1公开(公告)日： 2021-02-11
- 发明人: Sumiaki FUJII , Masao SUZUKI , Keiko SEKIYA , Tetsuya SAITOU
- 申请人： PRIME POLYMER CO., LTD.
- 申请人地址： JP Tokyo
- 专利权人： PRIME POLYMER CO., LTD.
- 当前专利权人： PRIME POLYMER CO., LTD.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2018-052641 20180320,JP2018-010338 20190124
- 国际申请： PCT/JP2019/011145 WO 20190318
- 主分类号： B32B27/08
- IPC分类号： B32B27/08 ; B32B27/32 ; B32B7/12 ; B65D65/40 ; C09J7/29 ; C09J7/30
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/m3. (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.
[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/m3. (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.
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