Title:
POLYETHYLENE-BASED POLYMER AND MANUFACTURING METHOD THEREFOR, COMPOSITION AND CROSSLINKED PIPE
Document Type and Number:
Japanese Patent JP2017088756
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a polyethylene polymer having flexibility, excellent in durability and capable of providing a pipe less in convexoconcave of a pipe internal surface.SOLUTION: There is provided a polyethylene-based polymer having density of 930 kg/mto 940 kg/m, melt flow rate of 1.0 g/10 min. to 6.0 g/10 min., ratio of z average molecular weight to weight average molecular weight of 2.5 to 6.0, melting tensile force (MT 190°C) of 5.0 mN or more and less than 30 mN, total content of a hydrocarbon component having 12 to 34 carbon atoms and extracted by hexane of 300 mass ppm or less and at least 1 each of an elution peak with maximum point temperature of 70°C or more and less than 80°C and an elution peak with maximum point temperature of 80°C or more and less than 90°C in a dissolution temperature curve of polyethylene total elution amount in a measurement using a cross fractionation chromatography.SELECTED DRAWING: None
Inventors:
TANAKA MASAYA
TARUYA ATSUSADA
KIKUCHI AKITOMO
TARUYA ATSUSADA
KIKUCHI AKITOMO
Application Number:
JP2015221516A
Publication Date:
May 25, 2017
Filing Date:
November 11, 2015
Export Citation:
Assignee:
ASAHI KASEI CORP
International Classes:
C08F10/02; C08F4/6592; C08F8/42; C08J3/24; C08K5/14; C08K5/5425; C08L23/04
Domestic Patent References:
| JP2016538413A | 2016-12-08 | |||
| JP2009197046A | 2009-09-03 | |||
| JP2011011497A | 2011-01-20 | |||
| JP2011012208A | 2011-01-20 | |||
| JP2014040562A | 2014-03-06 | |||
| JP2005053997A | 2005-03-03 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito