Invention Grant
- Patent Title: Method for producing solid catalyst component for α-olefin polymerization and method for producing α-olefin polymer using the same
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Application No.: US16063042Application Date: 2016-12-16
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Publication No.: US10526427B2Publication Date: 2020-01-07
- Inventor: Keiji Fukuda , Shouichi Ida , Akio Tanna , Shigeo Mizukami
- Applicant: Japan Polypropylene Corporation
- Applicant Address: JP Chiyoda-ku
- Assignee: Japan Polypropylene Corporation
- Current Assignee: Japan Polypropylene Corporation
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2015-247337 20151218
- International Application: PCT/JP2016/087595 WO 20161216
- International Announcement: WO2017/104817 WO 20170622
- Main IPC: C08F4/659
- IPC: C08F4/659 ; C08F4/609 ; C08F4/649 ; C08F110/06 ; C08F4/658 ; C08F10/00
Abstract:
A method for producing a solid catalyst component (Aa) for α-olefin polymerization, which includes: bringing components (A1) to (A4) into contact with one another in an inert solvent; and without washing the contact product with an inert solvent, aging the contact product by keeping for a holding time of 3 days or more and 180 days or less, regarding the time point that all of the components (A1) to (A4) first come into contact, as a starting point.
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