Invention Grant
- Patent Title: Polypropylene composition and molded article
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Application No.: US17051109Application Date: 2019-04-25
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Publication No.: US11459454B2Publication Date: 2022-10-04
- Inventor: Yutaka Yokoyama , Akihiro Kamimura , Hiroshi Kajioka
- Applicant: BASELL POLIOLEFINE ITALIA S.R.L.
- Applicant Address: IT Milan
- Assignee: BASELL POLIOLEFINE ITALIA S.R.L.
- Current Assignee: BASELL POLIOLEFINE ITALIA S.R.L.
- Current Assignee Address: IT Milan
- Priority: JPJP2018-087302 20180427
- International Application: PCT/JP2019/018653 WO 20190425
- International Announcement: WO2019/208836 WO 20191031
- Main IPC: C08L23/12
- IPC: C08L23/12 ; B29C45/00 ; C08J3/12 ; C08L23/16

Abstract:
A polypropylene composition made from or containing a polymer made from or containing: (i) component (1) made from or containing a propylene homopolymer having MFR of 100 to 300 (at a temperature of 230° C. under a load of 2.16 k(g) and containing more than 97.5% by weight of xylene insolubles (XI), wherein XI has a Mw/Mn of 4 to 10; (ii) component (2) made from or containing an ethylene/propylene copolymer containing 15 to 50% by weight of an ethylene-derived unit; wherein 1) relative proportions of component (1) and component (2) are, respectively, not less than 50 parts by weight but less than 70 pbw and more than 30 pbw but not more than 50 pbw, 2) intrinsic viscosity of xylene solubles (XSIV) of the polymer is in the range of 1.5 to 4.0 dl/g, 3) MFR of the polymer is in the range of 20 to 100 g/10 min.
Public/Granted literature
- US20210230412A1 POLYPROPYLENE COMPOSITION AND MOLDED ARTICLE Public/Granted day:2021-07-29
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