公开(公告)号：US20210039364A1

公开(公告)日：2021-02-11

申请号：US16969149

申请日：2019-03-18

Applicant: PRIME POLYMER CO., LTD.

Inventor： Sumiaki FUJII ,  Masao SUZUKI ,  Keiko SEKIYA ,  Tetsuya SAITOU

IPC: B32B27/08 ,  B32B27/32 ,  B32B7/12 ,  B65D65/40 ,  C09J7/29 ,  C09J7/30

Abstract: [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.

公开(公告)号：US20170341354A1

公开(公告)日：2017-11-30

申请号：US15539785

申请日：2016-01-15

Applicant: PRIME POLYMER CO., LTD.

Inventor： Keiko SEKIYA ,  Koji KATO ,  Kensei INOUE ,  Kengo YANAGIDA

IPC: B32B27/32 ,  B32B27/08 ,  B65D65/40 ,  B32B37/10 ,  B65D1/00

CPC classification number: B32B27/32 ,  B32B27/00 ,  B32B27/08 ,  B32B27/18 ,  B32B37/1018 ,  B32B2250/02 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2307/30 ,  B32B2307/412 ,  B32B2307/544 ,  B32B2307/546 ,  B32B2307/558 ,  B32B2307/72 ,  B32B2307/732 ,  B32B2309/105 ,  B32B2439/00 ,  B32B2439/70 ,  B65D1/00 ,  B65D65/40

Abstract: A laminate from which containers with improved transparency, high low-temperature impact strength and rigidity can be made. The laminate includes a resin layer [I] containing 60.0% by mass or more and 85.0% by mass or less of a propylene-based polymer (A) and 15.0% by mass or more and 40.0% by mass or less of an ethylene-based polymer (B), and a resin layer [II] containing 80.0% by mass or more and 99.9% by mass or less of a propylene-based polymer (A), 0.0% by mass or more and less than 15.0% by mass of an ethylene-based polymer (B), and 0.1% by mass or more and 20.0% by mass or less of a nucleating agent (C). The propylene-based polymer (A) and the ethylene-based polymer (B) satisfy specific requirements in both of the resin compositions [I] and [II].

公开(公告)号：US20250026898A1

公开(公告)日：2025-01-23

申请号：US18710677

申请日：2022-12-13

Applicant: PRIME POLYMER CO., LTD.

Inventor： Keiko SEKIYA

IPC: C08J5/18 ,  B29C48/36 ,  B29K23/00 ,  B29L7/00

Abstract: An object of the present invention is to obtain a film further excellent in strength, low-temperature sealability, and blocking resistance, and the present invention relates to a film comprising an ethylene/α-olefin copolymer (A) having the following requirements (a1), (a2), and (a3). (a1): the melt flow rate (MFR) measured at 190° C. and a load of 2.16 kg is in a range of 0.1 to 8 g/10 minutes, (a2): a density is in a range of 885 to 915 kg/m3, and 10 (a3): a melt tension is in a range of 40 to 190 mN.

公开(公告)号：US20240052117A1

公开(公告)日：2024-02-15

申请号：US18260605

申请日：2022-01-05

Applicant: PRIME POLYMER CO., LTD.

Inventor： Keiko SEKIYA ,  Michihiko OGUNI

IPC: C08J5/18 ,  B32B27/32 ,  B32B27/06

CPC classification number: C08J5/18 ,  B32B27/32 ,  B32B27/06 ,  C08J2323/06 ,  B32B2307/51

Abstract: A stretched film including a polyethylene-based resin composition satisfying the following requirements (1) to (3): (1) a melt flow rate (190° C., 2.16 kg load) is 0.01 g/10 min or more and 2.0 g/10 min or less; (2) a density is 935 kg/m3 or more and 970 kg/m3 or less; and (3) a ratio of a melt index (I21: 190° C., 21.6 kg load) to a melt index (I2: 190° C., 2.16 kg load), I21/I2 is 80 or more.

公开(公告)号：US20230119372A1

公开(公告)日：2023-04-20

申请号：US17911593

申请日：2021-03-30

Applicant: PRIME POLYMER CO., LTD.

Inventor： Keiko SEKIYA ,  Masao SUZUKI ,  Yuta KUDO

IPC: C08L23/08 ,  C08J5/18

Abstract: 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.

公开(公告)号：US20210009794A1

公开(公告)日：2021-01-14

申请号：US16969687

申请日：2019-03-07

Applicant: PRIME POLYMER CO., LTD.

Inventor： Keiko SEKIYA ,  Masao SUZUKI ,  Tetsuya SAITO ,  Yuta KUDO

IPC: C08L23/08 ,  B32B27/32 ,  C08L23/06

Abstract: 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.