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Liquid crystalline polyester and molded article thereof

  • US 8,337,719 B2
  • Filed: 12/02/2008
  • Issued: 12/25/2012
  • Est. Priority Date: 12/03/2007
  • Status: Expired due to Fees
First Claim
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1. A liquid crystalline polyester resin composition comprising:

  • 50 to 80% by volume of a liquid crystalline polyester (A) having a structural unit represented by the formula (I) shown below, a structural unit represented by the formula (II) shown below and a structural unit represented by the formula (iii) shown below, wherein the polyester (A) contains 40% by mol or more of a 2,6-naphthalenediyl group on the basis of 100% by mol of the total of a divalent aromatic group represented by Ar1, a divalent aromatic group represented by Ar2 and a divalent aromatic group represented by Ar3, also has a flow initiation temperature of 280°

    C. or higher and shows a melt tension of 1 g or more measured at a temperature higher than the flow initiation temperature; and

    20 to 50% by volume of a filler (B) comprising a high dielectric material;

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