Title:
ポリエチレン及びその成形体
Document Type and Number:
Japanese Patent JP6794894
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide polyethylene excellent in balance between rigidity and durability, and excellent in moldability and impact resistance, and a material useful as a hollow molding material such as a container, a bottle and a tank.SOLUTION: There is provided a polyethylene resin composition constituted by one or more kind of ethylene polymer selected from a group of a single polymer of ethylene and/or a copolymer with C3 to 12 α-olefin, and satisfying following specific requirements at same time. (1) melt flow rate measured under a specific measurement condition is over 15 g/10 min. and 100 g/10 min. or less. (2) density (d) is 0.940 to 0.970. (3) melting tensile force (unit: mN) measured at 210°C satisfies a specific formula. (4) Charpy impact strength measured at -40°C is 7 kJ/mor more. (5) rupture time (T) (unit: hour) of whole periphery notch type creep test and the density (d) satisfy a specific formula.SELECTED DRAWING: None
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Inventors:
Kazuhiro Kobayashi
Koichi Ogawa
Koichi Ogawa
Application Number:
JP2017059142A
Publication Date:
December 02, 2020
Filing Date:
March 24, 2017
Export Citation:
Assignee:
Japan Polyethylene Corporation
International Classes:
C08L23/04; C08F4/6592; C08F10/02
Domestic Patent References:
| JP2015227459A | ||||
| JP2014208750A |
Attorney, Agent or Firm:
Kishimoto Tatsuto
Akihiko Yamashita
Noriyuki Yamamoto
Akihiko Yamashita
Noriyuki Yamamoto