Polyolefin alloy with improved surface hardness and scratch resistance, and process for producing same

Polyolefin alloy with improved surface hardness and scratch resistance, and process for producing same

  • CN 1,168,148 A
  • Filed: 01/09/1996
  • Published: 12/17/1997
  • Est. Priority Date: 01/16/1995
  • Status: Abandoned Application
First Claim
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1. polyolefin alloy, it has improved surface hardness and scratch resistance, with under 230 ℃

  • /2.16kg condition, have melt index MI scope at 0.1-50g/10min, particularly under 230 ℃

    /2.16kg condition, have melt index MI scope at 3-40g/10min, it is characterized in that it is made up of the mixture of following each component;

    (A) pp material formed of the multipolymer by homopolymer polypropylene or propylene and ethene and/or divinyl of 40-80% weight, pp material can have the polymeric ethene and/or the butadiene unit of 5-35mol% content and have molecular weight Mw 100,000-300,000, with under 230 ℃

    /2.16kg condition, have melt index MI scope at 0.1-20g/10min(B) the functionalized pp material formed of the multipolymer by grafted homopolymer polypropylene or propylene and ethene and/or divinyl of 1-10% weight, the graft(ing) degree with 0.2-10% weight,(C) the mineral material of 1-50% weight, this mineral material have about 2.5 μ

    m of average particle size particle size and the about 20 μ

    m of maximum particle size, its surface aminosilane-treated of 0.2-5% weight,(D) silica gel of the amorphous fatty acid treatment of 1-15% weight, it comprises the silicon-dioxide of 25-75% weight and the fatty acid amide of 75-25% weight,(E) ethylene/propene of 0-40% weight/polyenoid ter-polymers (EPDM), it has melt index MI scope under 230 ℃

    /2.16kg condition be 30-70 at 1-10g/10min and Shore D hardness.

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