CELL SIZE ENLARGERS FOR POLYSTYRENE FOAMS

CELL SIZE ENLARGERS FOR POLYSTYRENE FOAMS

  • CN 104,710,696 A
  • Filed: 06/21/2007
  • Published: 06/17/2015
  • Est. Priority Date: 06/22/2006
  • Status: Active Grant
First Claim
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1. , for the formation of a composition for closed pore thermoplastic polymer foam, it comprises:

  • The expandable alkenyl aromatic polymer material of about 60 % by weight to about 95 % by weight;

    At least one whipping agent of about 2 % by weight to about 18 % by weight, described whipping agent is selected from hydrogen fluorohydrocarbon (HFC), carbonic acid gas, argon gas, water, air, nitrogen and helium;

    WithAt least one cell size enlargers of about 0.1 % by weight to about 0.5 % by weight, this cell size enlargers comprises ethylene-methyl acrylate,Wherein said at least one cell size enlargers provides the cell size of about 50 microns to about 500 microns in foamed products.

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