Invention Grant
- Patent Title: Polypropylene composition with excellent surface appearance
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Application No.: US16622532Application Date: 2018-06-26
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Publication No.: US11332603B2Publication Date: 2022-05-17
- Inventor: Daniela Mileva , Susanne Kahlen , Georg Grestenberger , Anton Sageder , Christof Wurnitsch , Anna Hartl , Patrick Rover , Erwin Pirklbauer
- Applicant: BOREALIS AG
- Applicant Address: AT Wagramerstrasse
- Assignee: BOREALIS AG
- Current Assignee: BOREALIS AG
- Current Assignee Address: AT Wagramerstrasse
- Agency: Tarolli, Sundheim, Covell & Tummino LLP
- Priority: EP17179064 20170630
- International Application: PCT/EP2018/067115 WO 20180626
- International Announcement: WO2019/002294 WO 20190103
- Main IPC: C08L23/12
- IPC: C08L23/12 ; C08K3/34 ; C08K5/092 ; C08K5/098 ; C08L23/08 ; C08L23/14

Abstract:
The present invention is directed to a polypropylene composition (C) comprising a heterophasic propylene copolymer (HECO1) having an intrinsic viscosity (IV) of the xylene soluble fraction (XCS) above 3.5 dl/g, an inorganic filler (F) and a nucleating agent (NU) being a dicarboxylic acid and/or a salt thereof. Further, the present invention is directed to the use of said polypropylene composition (C) for the production of a foamed article as well as a foamed article comprising said polypropylene composition (C). The present invention is also directed to the use of a nucleating agent (NU) being dicarboxylic acid and/or a salt thereof for the reduction of tigerskin of a polypropylene composition.
Public/Granted literature
- US20200207960A1 POLYPROPYLENE COMPOSITION WITH EXCELLENT SURFACE APPEARANCE Public/Granted day:2020-07-02
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