Title:
4-METHYL-1-PENTENE POLYMER, RESIN COMPOSITION, AND MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2018/179619
Kind Code:
A1
Abstract:
The present invention provides a 4-methyl-1-pentene polymer (X) which comprises 90 to 100 mol% of constitutional units derived from 4-methyl-1-pentene and 0 to 10 mol% of constitutional units derived from at least one olefin selected from the group consisting of ethylene and α-olefin having 3 to 20 carbon atoms other than 4-methyl-1-pentene, and which satisfies all of requirements (a) to (e). (a) The meso diad fraction (m) measured by 13C-NMR is in a range of 70% or more and less than 98%. (b) The ratio (Mw/Mn) of a weight average molecular weight Mw to a number average molecular weight Mn measured by gel permeation chromatography (GPC) is in a range of 3.6 to 30. (c) The melt flow rate (MFR) measured under a condition of 260°C and a load of 5 kg in accordance with ASTM D1238 is in a range of 0.1 to 500 g/10 mins. (d) The cumulative weight fraction of the amount of elution at 80°C or lower measured by a cross-fractionation chromatography apparatus using an infrared spectrophotometer as a detection unit is 5 mass% or less. (e) The rate of polymers having molecular weights of 1×106 or more measured by gel permeation chromatography (GPC) is 15 mass% or more. (f) The heat of fusion and melting point of the 4-methyl-1-pentene polymer measured by differential scanning calorimetry (DSC) satisfies requirements (i) and (ii). (i) Formula (1) is satisfied. Formula (1) ΔHm<0.5×Tm-76 (ΔHmJ/g is the heat of fusion and Tm°C is the melting point.) (ii) The melting point is in a range of 180 to 260°C. Thus, the present invention is capable of providing a 4-methyl-1-pentene polymer and a resin composition which have a low heat of fusion, excellent meltability, high melt tension, and excellent contamination resistance without significantly compromising properties of the 4-methyl-1-pentene polymer such as high heat resistance.
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Inventors:
TANAKA MASAKAZU (JP)
SASAKI TOYOAKI (JP)
MATSUGI TOMOAKI (JP)
SASAKI TOYOAKI (JP)
MATSUGI TOMOAKI (JP)
Application Number:
PCT/JP2017/045515
Publication Date:
October 04, 2018
Filing Date:
December 19, 2017
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C08F10/14; C08L23/20
Domestic Patent References:
| WO2014050817A1 | 2014-04-03 | |||
| WO2011078054A1 | 2011-06-30 | |||
| WO2014050817A1 | 2014-04-03 | |||
| WO2014123212A1 | 2014-08-14 | |||
| WO2010055652A1 | 2010-05-20 | |||
| WO2011142400A1 | 2011-11-17 | |||
| WO2013146337A1 | 2013-10-03 | |||
| WO2001027124A1 | 2001-04-19 | |||
| WO2005121192A1 | 2005-12-22 | |||
| WO2006054613A1 | 2006-05-26 |
Foreign References:
| JP2015183141A | 2015-10-22 | |||
| JP2015183332A | 2015-10-22 | |||
| JP2016098257A | 2016-05-30 | |||
| JP2013122061A | 2013-06-20 | |||
| JP2007224311A | 2007-09-06 | |||
| JP2015183141A | 2015-10-22 | |||
| JP2015074645A | 2015-04-20 |
Other References:
J. POLYM. SCI., vol. 8, 1970, pages 1803
See also references of EP 3604357A4
See also references of EP 3604357A4
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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