Invention Application
- Patent Title: MINERAL FILLED POLYPROPYLENE COMPOSITION
- Patent Title (中): 矿物填充聚丙烯组合物
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Application No.: US15105492Application Date: 2014-12-15
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Publication No.: US20160319118A1Publication Date: 2016-11-03
- Inventor: PAOLA MASSARI , MARCO CIARAFONI , SANDER WILLEMS , JURGEN ROHRMANN
- Applicant: BASELL POLIOLEFINE ITALIA S.R.L.
- Applicant Address: IT MILANO
- Assignee: BASELL POLIOLEFINE ITALIA S.R.L.
- Current Assignee: BASELL POLIOLEFINE ITALIA S.R.L.
- Current Assignee Address: IT MILANO
- Priority: EP13197434.7 20131216
- International Application: PCT/EP2014/077790 WO 20141215
- Main IPC: C08L23/12
- IPC: C08L23/12

Abstract:
The present disclosure relates to a polypropylene composition for the production of molded articles, such as finished parts for the automotive industry, has melt flow rate (230° C., 2.16 kg) of at least 25 g/10 min and comprising: (A) 50-95% of a composition having an intrinsic viscosity of the fraction soluble in xylene at 25° C. of 3.0-5.0 dl/g; and (A1) 70-95% of a propylene homopolymer having a polydispersity index (PI) of 4.3-10, a fraction insoluble in xylene at 25° C. higher than 90% and an MFR (230° C., 2.16 kg) of 100-250 g/10 min; (A2) 5-30% of a copolymer of propylene with 36-44% of ethylene-derived units; (B) optionally up to 45% of a heterophasic propylene polymer, having an MFR (230° C., 2.16 kg) of 10-25 g/10 min, a flexural modulus higher than 1400 MPa, comprising 5-20% of a copolymer rubber component and 80-95% of a matrix propylene polymer component; (C) 2-10% of an ethylene based elastoplastic copolymer; and (D) optionally up to 20% of talc.
Public/Granted literature
- US09714337B2 Mineral filled polypropylene composition Public/Granted day:2017-07-25
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