Title:
HIGH MOLECULAR WEIGHT POLYETHYLENE AND MOLDED BODY THEREOF
Document Type and Number:
Japanese Patent JP2021123673
Kind Code:
A
Abstract:
To provide novel high molecular weight polyethylene which has an excellent balance between processability and physical properties, especially impact resistance of a molded body.SOLUTION: Provided is high molecular weight polyethylene which satisfies all of the following characteristics (1) to (4): (1) an intrinsic viscosity ([η]) is 4 dL/g to 14 dL/g; (2) a molecular weight distribution, represented by a ratio of a number average molecular weight and a weight average molecular weight, is 3 to 5; (3) a melt flow rate (MFR), measured according to JIS K6922-1 (2018) at 190°C and a load of 21.6 kg, satisfies the following formula (a), 2000[η]-5.3≤MFR≤2400[η]-5 (a); (4) Izod impact strength, measured with a double-notched (laser notch) test sample by a method in accordance with ASTM D256, is 50 kJ/m2 or more.SELECTED DRAWING: None
Inventors:
INATOMI TAKASHI
ONISHI TAKUYA
KANOKOGI KEISUKE
ONISHI TAKUYA
KANOKOGI KEISUKE
Application Number:
JP2020019356A
Publication Date:
August 30, 2021
Filing Date:
February 07, 2020
Export Citation:
Assignee:
TOSOH CORP
International Classes:
C08F10/02; C08J9/04; C08J9/24
Domestic Patent References:
| JP2015193816A | 2015-11-05 | |||
| JP2018145412A | 2018-09-20 | |||
| JP2015017180A | 2015-01-29 | |||
| JP2016176061A | 2016-10-06 |