Invention Grant
- Patent Title: Propylene composition with high stiffness and impact strength
- Patent Title (中): 丙烯组合物具有高刚度和冲击强度
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Application No.: US13129511Application Date: 2010-02-04
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Publication No.: US08759452B2Publication Date: 2014-06-24
- Inventor: Markus Gahleitner , Bo Malm , Klaus Bernreitner , Juliane Braun
- Applicant: Markus Gahleitner , Bo Malm , Klaus Bernreitner , Juliane Braun
- Applicant Address: unknown Vienna
- Assignee: Borealis AG
- Current Assignee: Borealis AG
- Current Assignee Address: unknown Vienna
- Agency: Milbank, Tweed, Hadley & McCloy LLP
- Priority: EP09001548 20090204
- International Application: PCT/EP2010/000701 WO 20100204
- International Announcement: WO2010/089121 WO 20100812
- Main IPC: C08J3/22
- IPC: C08J3/22 ; C08F290/14 ; C08L23/00 ; C08F110/02

Abstract:
The present invention is directed to a polypropylene composition comprising a propylene homo- or copolymer (A) with a polydispersity index (PI), determined according ISO 6721-1, of at least 5.8 Pa−1; and an inorganic filler (B) in an amount from 2.0 to 20 parts per weight based on 100 parts per weight of (A)+(B); The present invention is furthermore directed to a polypropylene composition comprising a propylene homo- or copolymer (A); and an inorganic filler (B); whereby the following relation is fulfilled (80F+1700)MPa≦T wherein F are the parts per weight of component (B) based on 100 parts per weight of the total amount of (A)+(B). T is the tensile modulus in MPa, determined according to ISO 527-2, of the polypropylene composition measured on a test specimen prepared by injection molding according to ISO 1873-2. The present invention is also directed to a process for the production of the polypropylene compositions according to the invention and to an article made of the polypropylene compositions according to the invention.The present invention is furthermore directed to the use of the polypropylene compositions according to the invention for the production of pipes, car components, appliance housings, transport containers.
Public/Granted literature
- US20110229670A1 PROPYLENE COMPOSITION WITH HIGH STIFFNESS AND IMPACT STRENGTH Public/Granted day:2011-09-22
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