Compositions of expandable vinyl aromatic polymers with an improved thermal insulation capacity, process for their preparation and expanded articles obtained therefrom

Compositions of expandable vinyl aromatic polymers with an improved thermal insulation capacity, process for their preparation and expanded articles obtained therefrom

CN
  • CN 102,015,851 B
  • Filed: 05/01/2009
  • Issued: 01/08/2014
  • Est. Priority Date: 05/07/2008
  • Status: Active Grant
First Claim
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1. the composition of expandable vinyl aromatic polymers, said composition comprises:

  • A) polymeric matrix that the base-material polymerization of at least one copolymerisable monomer by one or more vi-ny l aromatic monomers of making to comprise the 50-100 % by weight and 0-50 % by weight obtains;

    B) be embedded in described polymeric matrix, count the whipping agent of 1-10 % by weight with respect to polymkeric substance (a);

    C) count the adiathermance filler that comprises coke of 0.05-25 % by weight with respect to polymkeric substance (a), described coke is particle form, has the average particulate diameter of 0.5-100 μ

    m, and has the 5-50m measured according to ASTM D-3037/89 2the surface-area of/g.

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