Invention Application
US20140371371A1 TALC CONTAINING POLYPROPYLENE COMPOSITION WITH EXCELLENT THERMOMECHANICAL PROPERTIES 有权
含有优异热物性的聚丙烯组合物的TALC

  • Patent Title: TALC CONTAINING POLYPROPYLENE COMPOSITION WITH EXCELLENT THERMOMECHANICAL PROPERTIES
  • Patent Title (中): 含有优异热物性的聚丙烯组合物的TALC
  • Application No.: US14372242
    Application Date: 2013-01-16
  • Publication No.: US20140371371A1
    Publication Date: 2014-12-18
  • Inventor: Rao Balakantha KonaStefan SchiesserAndreas HauerHansjorg Pramer
  • Applicant: BOREALIS AG
  • Applicant Address: AT Vienna
  • Assignee: BOREALIS AG
  • Current Assignee: BOREALIS AG
  • Current Assignee Address: AT Vienna
  • Priority: EP12000652.3 20120201
  • International Application: PCT/EP2013/000114 WO 20130116
  • Main IPC: C08L23/12
  • IPC: C08L23/12
TALC CONTAINING POLYPROPYLENE COMPOSITION WITH EXCELLENT THERMOMECHANICAL PROPERTIES
Abstract:
The invention pertains to a polypropylene composition consisting of: 55 to 79 wt % base polymer mix; 18 to 44.5 wt % talc; and 0.5 to 3 wt % additives based on the total weight of the polypropylene composition, the base polymer mix containing a XCU fraction and a XCS fraction and the XCU fraction being present in an amount of 91 to 98 wt % and the XCS fraction being present in an amount of 2 to 9 wt %; the base polymer mix containing a comonomer content of less than 5 wt % with respect to the base polymer mix; the talc having a d50 median particle size of 1.0 to 3.0 μm when measured according to ISO 13317-3 15 using a Sedigraph; and the composition having a MFR (230° C./2.16 kg; ISO 1133) of 1 to 10 g/10 min a process for the production of such a polypropylene composition and article comprising said polypropylene composition.
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