GEFORMTE GEGENSTAENDE AUS EINER ZUSAMMENSETZUNG EINES THERMOPLASTISCHEN SYNTHETISCHEN HARZES UND SCHAUMMATERIAL UND VERFAHREN ZU DEREN HERSTELLUNG.,申请号DE19853582184-传众专利搜索

GEFORMTE GEGENSTAENDE AUS EINER ZUSAMMENSETZUNG EINES THERMOPLASTISCHEN SYNTHETISCHEN HARZES UND SCHAUMMATERIAL UND VERFAHREN ZU DEREN HERSTELLUNG.

申请公布号：DE3582184(D1)

申请号：DE19853582184

申请日期：1985.03.08

申请公布日期：1991.04.25

申请人：

JAMES WALKER & CO. LTD., WOKING, SURREY, GB

发明人：GOULDING, LESLIE BENJAMIN, PRYFORD SURREY GU22 8AP, GB;JOHNSON, IAN FREDERICK, ST JOHNS WOKING GU21 1UE, GB

分类号：B29C47/00;B29C67/20;C08L23/08;C08L97/02;(IPC1-7):C08L101/00

主分类号：B29C47/00

摘要：<p>A rail pad or other shaped article in the form of a resiliently compressible extrudate having a textured surface and comprising particles or granules of cork or similar resiliently compressible cellular material substantially homogenously dispersed throughout a polymeric matrix of generally saturated thermoplastic synthetic resin, preferably ethylene/vinyl acetate copolymer, which has a stiffness modulus of not more than 1000 MPa and is extrudable under conditions at which the cellular material is not significantly degraded, the extrudate having a Poissons ratio less than that of the matrix. The article may be made by forming a hot dough of the matrix and cellular material, feeding the dough in heat-softened state to an extruder, extruding it under conditions which compress the cellular material but avoid any significant mechanical breakdown or denaturing thereof, and relieving the compression of the cellular material downstream of the die but before the matrix has cooled to a temperature which would prevent this.</p>