Title:
POLYETHYLENE POWDER AND MOLDED BODY
Document Type and Number:
WIPO Patent Application WO/2022/107690
Kind Code:
A1
Abstract:
A polyethylene powder that has a viscosity-average molecular weight of 100,000-2,500,000 (inclusive) and that is configured such that the slope of a straight line connecting two maxima in a torque curve obtained when the powder is kneaded under the following using a Laboplast mill is 2-15 N∙m/min (inclusive). After 24 g of liquid paraffin is kneaded for ten minutes at a set temperature of 114°C and a rotary speed of 5 rpm using a Laboplast mill mixer made by Toyo Seiki Co., Ltd. (model: 30C150, mixer form: R-60), 16 g of the polyethylene powder and 0.4 g of an antioxidant are added, the mixture is kneaded for three minutes at a rotary speed of 30 rpm, and then the set temperature is raised from 114°C to 163°C over one minute. After heating, the mixture is kneaded for five minutes at the set temperature of 163°C and a rotary speed of 30 rpm.
More Like This:
Inventors:
OKITSU NAOYA (JP)
Application Number:
PCT/JP2021/041690
Publication Date:
May 27, 2022
Filing Date:
November 12, 2021
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08F10/02; H01M50/409
Domestic Patent References:
| WO2020189443A1 | 2020-09-24 | |||
| WO2020179650A1 | 2020-09-10 |
Foreign References:
| JPH10510570A | 1998-10-13 | |||
| JPH07238109A | 1995-09-12 | |||
| JP2015101680A | 2015-06-04 | |||
| JP5840743B2 | 2016-01-06 | |||
| JP5722305B2 | 2015-05-20 | |||
| JP6135665B2 | 2017-05-31 | |||
| JP2019019265A | 2019-02-07 | |||
| JP6281372B2 | 2018-02-21 | |||
| JP5782558B1 | 2015-09-24 | |||
| DE3127133A1 | 1983-01-27 | |||
| JP2020191016A | 2020-11-26 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Download PDF: