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ULTRA-LOW DENSITY POLYPROPYLENE PLASTIC COMPOUND

  • US 20190322849A1
  • Filed: 04/20/2018
  • Published: 10/24/2019
  • Est. Priority Date: 04/20/2018
  • Status: Active Grant
First Claim
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1. A composite material comprising:

  • a polypropylene blend comprising;

    a homopolymer polypropylene having a minimum ASTM D638 tensile strength of 4,000 psi in an amount between 40 wt. % and 70 wt. %;

    a high crystallinity homopolymer polypropylene having a minimum ASTM D638 tensile strength of 6,000 psi in an amount between 5 wt. % and 30 wt. %; and

    an impact copolymer having a rubber content greater than zero and less than 30 wt. %, the impact copolymer being in an amount between 3 wt. % and 10 wt. %;

    at least one structural filler in an amount between 1.0 wt. % and 10.0 wt. %; and

    at least one additive.

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