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1. 发明申请

US20210039364A1 LAMINATES AND LIQUID PACKAGING BAGS 有权
公开(公告)号：US20210039364A1
公开(公告)日：2021-02-11
申请号：US16969149
申请日：2019-03-18
申请人： PRIME POLYMER CO., LTD.
发明人： Sumiaki FUJII , Masao SUZUKI , Keiko SEKIYA , Tetsuya SAITOU
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.

2. 发明申请

US20230119372A1 ETHYLENE RESIN COMPOSITION AND FILM 有权
公开(公告)号：US20230119372A1
公开(公告)日：2023-04-20
申请号：US17911593
申请日：2021-03-30
申请人： PRIME POLYMER CO., LTD.
发明人： Keiko SEKIYA , Masao SUZUKI , Yuta KUDO
IPC分类号： C08L23/08 , C08J5/18
摘要： An ethylene-based resin composition having the following requirements (1) to (4) as a material such as packaging material, a film having strength for the protection and rigidity (e.g., easy opening and self-standability on packaging contents) in an excellent balance: (1) A melt flow rate (190° C., 2.16 kg load) is 0.1 g/10 min or more and 1.0 g/10 min or less, (2) a density is 915 kg/m3 or more and 935 kg/m3 or less, (3) a melt index (121: 190° C., 21.6 kg load) is 45 or less, and (4) a ratio of the amount of heat of fusion at 120° C. or higher (Hh/Ht), which is the ratio of the amount of heat of fusion (Hh) determined from a DSC curve at 120° C. or higher to the total amount of heat of fusion (Ht) determined from a DSC curve of DSC measurement, is 10% or more and 55% or less.

3. 发明申请

US20210009794A1 RESIN COMPOSITION FOR SEALANT, MULTILAYER FILM FOR SEALANT, HEAT-FUSIBLE LAMINATED FILM, AND PACKAGE 有权
公开(公告)号：US20210009794A1
公开(公告)日：2021-01-14
申请号：US16969687
申请日：2019-03-07
申请人： PRIME POLYMER CO., LTD.
发明人： Keiko SEKIYA , Masao SUZUKI , Tetsuya SAITO , Yuta KUDO
IPC分类号： C08L23/08 , B32B27/32 , C08L23/06
摘要： An object of the present invention is to provide a resin composition for a sealant combining bag manufacturing performance and inflation film process-ability (extrusion properties, bubble stability), a sealant film and a heat-fusible film produced using the composition, and a package produced using the heat-fusible film. The ethylene-based resin composition for a sealant according to the present invention satisfies the following requirements (1) to (3) simultaneously: (1) a melt index (I21: 190° C., 21.6 kg load) is 42 to 80 g/10 min; (2) a ratio I21/I2 of the melt index (I21: 190° C., 21.6 kg load) to a melt index (I2: 190° C., 2.16 kg load) is 5 to 25; (3) a melt tension (190° C.) is 25 to 180 mN.

4. 发明申请

US20140114031A1 BRIDGED METALLOCENE COMPOUND, OLEFIN POLYMERIZATION CATALYST CONTAINING THE SAME, AND ETHYLENE POLYMER OBTAINED WITH THE CATALYST 有权
标题翻译：桥联金属化合物，含有其的烯烃聚合催化剂和用催化剂获得的乙烯聚合物
公开(公告)号：US20140114031A1
公开(公告)日：2014-04-24
申请号：US14137531
申请日：2013-12-20
申请人： Prime Polymer Co., Ltd.
发明人： Hideki BANDO , Yasuo SATOH , Takashi YUKITA , Yasuyuki HARADA , Yoshiho SONOBE , Yasushi TOHI , Yusuke SEKIOKA , Masao SUZUKI , Daisuke TANIFUJI
IPC分类号： C08F4/6592
CPC分类号： C08F4/65927 , C07F17/00 , C08F4/65904 , C08F4/65912 , C08F4/65916 , C08F10/00 , C08F110/02 , C08F110/06 , C08F210/16 , C08F2500/12 , C08F2500/17 , C08F2500/11 , C08F2500/10 , C08F2500/24 , C08F210/14 , C08F210/08
摘要： Metallocene compounds of the invention are useful as olefin polymerization catalysts or catalyst components. Olefin polymerization processes of the invention involve an olefin polymerization catalyst containing the metallocene compound. In detail, the olefin polymerization catalysts can catalyze with high polymerization activity the production of olefin polymers having high melt tension, excellent mechanical strength and good particle properties, and the olefin polymerization processes involve the catalysts. Ethylene polymers according to the invention are obtained by the polymerization processes and have higher processability and easy-opening properties and particularly excellent mechanical strength compared to conventional ethylene polymers. Thermoplastic resin compositions of the invention contain the ethylene polymers. In more detail, shaped articles or films are obtained from the ethylene polymers or the thermoplastic resin compositions containing the ethylene polymers, and laminate films include the films.According to the invention, a single or plural kinds of bridged metallocene compounds having differing cyclopentadienyl-derived groups afford macromonomers that are a source of long-chain branches and simultaneously catalyze the repolymerization of the macromonomers into olefin polymers having a large number of long-chain branches, small neck-in in the T-die extrusion, small take-up surge and superior mechanical strength. The olefin polymerization catalysts and the polymerization processes can efficiently produce the olefin polymers.
摘要翻译：本发明的茂金属化合物可用作烯烃聚合催化剂或催化剂组分。本发明的烯烃聚合方法包括含有茂金属化合物的烯烃聚合催化剂。详细地，烯烃聚合催化剂可以以高聚合活性催化生产具有高熔体张力，优异的机械强度和良好的颗粒性能的烯烃聚合物，并且烯烃聚合方法涉及催化剂。根据本发明的乙烯聚合物通过聚合方法获得，并且与常规的乙烯聚合物相比具有更高的加工性和易开启性以及特别优异的机械强度。本发明的热塑性树脂组合物含有乙烯聚合物。更详细地，从乙烯聚合物或含有乙烯聚合物的热塑性树脂组合物获得成型制品或膜，层压膜包括膜。根据本发明，具有不同的环戊二烯基衍生基团的单种或多种桥连茂金属化合物提供大分子单体，其是长链支链的来源，并同时催化大分子单体重新聚合成具有大量长链的烯烃聚合物分支机构，T型模具挤出中的小口径，小的卷取浪涌和优异的机械强度。烯烃聚合催化剂和聚合方法可以有效地生产烯烃聚合物。

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