Invention Grant
- Patent Title: Polypropylene composition for foaming
- Patent Title (中): 用于发泡的聚丙烯组合物
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Application No.: US14355476Application Date: 2012-10-16
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Publication No.: US09587079B2Publication Date: 2017-03-07
- Inventor: Dieter Langenfelder , Jurgen Rohrmann
- 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: EP11187518 20111102
- International Application: PCT/EP2012/070443 WO 20121016
- International Announcement: WO2013/064364 WO 20130510
- Main IPC: C08L23/14
- IPC: C08L23/14 ; C08L23/12 ; C08L23/16 ; C08K7/14 ; C08J9/00

Abstract:
The present invention relates to a new polypropylene composition for molded articles, such as finished parts for the automotive industry. A composition comprising: (A) from 40 to 85% by weight of a first propylene-based component being selected from propylene homopolymers, propylene copolymers and heterophasic propylene polymer, such first propylene-based component having a flexural modulus higher than 800 MPa; (B) from 5 to 20% by weight of a second propylene-based component being a heterophasic propylene polymer comprising: (B1) from 20 to 90% by weight of a crystalline polypropylene, and (B2) from 10 to 80% by weight of a copolymer of ethylene and at least one C3-C10 alpha-olefin, such copolymer containing from 10 to 70% by weight of ethylene, being soluble in xylene at room temperature, and having an intrinsic viscosity in tetrahydronaphtalene at 135° C. of higher than 3.5 dl/g; and (C) from 10 to 40% by weight of glass fibers.
Public/Granted literature
- US20140371339A1 POLYPROPYLENE COMPOSITION FOR FOAMING Public/Granted day:2014-12-18
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