Title:
MASTER BATCH COMPOSITION AND POLYPROPYLENE RESIN COMPOSITION CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2018/092805
Kind Code:
A1
Abstract:
A master batch composition which is obtained by polymerizing propylene and ethylene with use of (A) a solid catalyst that contains, as essential components, magnesium, titanium, a halogen and an electron donor compound selected from among succinate compounds, (B) an organic aluminum compound and (C) a catalyst that contains an external electron donor compound, and which is configured such that: a propylene homopolymer is contained as a component (1) and a propylene-ethylene copolymer containing 55-80% by weight of a unit derived from ethylene is contained as a component (2); the weight ratio of the component (1) to the component (2) is 85-60:15-40; and the requirements (1)-(3) described below are satisfied. This composition has high elastic modulus, high impact strength at low temperatures and low linear expansion coefficient.
Requirement (1): The xylene-insoluble fraction of this composition has an Mw/Mn of 6-20 as determined by GPC.
Requirement (2): The xylene-soluble fraction of this composition has a limiting viscosity of 1-3 dl/g.
Requirement (3): This composition has a melt flow rate of 1-50 g/10 minutes (at 230°C under a load of 21.18 N).
Inventors:
KAJIOKA HIROSHI (JP)
YASUMOTO KAZUHISA (JP)
YASUMOTO KAZUHISA (JP)
Application Number:
PCT/JP2017/041091
Publication Date:
May 24, 2018
Filing Date:
November 15, 2017
Export Citation:
Assignee:
SUNALLOMER LTD (JP)
International Classes:
C08L23/12; C08F4/654; C08F10/06; C08J3/22; C08K3/00; C08L23/08
Foreign References:
| JP2014091781A | 2014-05-19 | |||
| JP2016089012A | 2016-05-23 | |||
| JP2011500907A | 2011-01-06 | |||
| JP2006522186A | 2006-09-28 | |||
| JP2008516025A | 2008-05-15 | |||
| JP2002528621A | 2002-09-03 | |||
| JP2006199738A | 2006-08-03 |
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
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