Soft thermoplastic elastomer composition

Soft thermoplastic elastomer composition

  • CN 101,959,920 B
  • Filed: 01/20/2009
  • Issued: 02/17/2016
  • Est. Priority Date: 01/24/2008
  • Status: Active Grant
First Claim
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1. soft, hypocrystalline, polyurethane termoplastic elastomer composition, it comprises (I) hydrophobic nature thermoplastic block copolymers, described hydrophobic nature thermoplastic block copolymers comprises (1) at least one hydrophobic nature polyvalent alcohol, and wherein said hydrophobic nature polyvalent alcohol is the reaction product adopting the dicarboxylic acid polyester polyvalent alcohol prepared of dimer (fatty acid) yl and wherein said dimer (fatty acid) yl to comprise 26 to 44 carbon atoms, (2) polyisocyanates and (3) at least one to comprise the chainextender of 2 to 20 carbon atoms;

  • Wherein hydrophobic nature polyvalent alcohol has 1,000 to 4, the number-average molecular weight in 000 daltonian scope;

    Wherein hydrophobic nature thermoplastic block copolymers has 50,000 to 1, the weight-average molecular weight within the scope of 000,000 dalton and the density being less than 1.1g/cc;

    (II) mineral oil of 80 weight percentage is counted to from 1 weight percent.

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