Composiu00c7u00e7o elastomeric termoplu00c1stica with high resistance in fusu00e7o, premixture, processes for the preparau00c7u00e7o of premixture to the preparau00c7u00e7o a composiu00c7u00e7o and the preparau00c7u00e7o elastomu00c9ricos formed thermoplastic articles, and articles elastomu00c9ricos thermoplastic f Lexu00cdveis conformed

摘要

Composiu00c7u00e7o elastomeric termoplu00c1stica with high resistance in fusu00e7o, premixture, processes for the preparau00c7u00e7o of premixture to the preparau00c7u00e7o a composiu00c7u00e7o and the preparau00c7u00e7o elastomu00c9ricos formed thermoplastic articles, and articles elastomu00c9ricos thermoplastic f Lexu00cdveis conformation.A thermoplastic elastomeric composition with high resistance to melting, comprising: (I) at least a linear crystalline polyolefin, having a melting temperature (TM) of at least 100 0C and a polidispersidade index (PI) of more than 20, determined by means of scanning Of frequ00fau00eancia dynamic isothermal in 375 and calculated by means of the equation pi = u00ed00.000 / GC, in which GC is expressed in pascals, and represents the intersection module (GCS = g '= g "), and (II) at least one thermoplastic elastomer (TPE) or of a mixture that behaves like toe, where the toe or the mixture is compatible with the polyolefin, and (I) have a deformation by compression Abai XO of 50% in room temperature after 24 h of compression (ASTM d395 - 03"Deformation by compression under constant deflection in the air"), in which the amount of the component (I) is in the range of 0.1 to 15% by weight calculated on the total of (I) and (II); a pre mixture (III) useful as an additive of hardening of effort on fusion to the homogeneous preparation of This composition; a process for the preparation of polymeric articles made of this.And articles thus prepared polymer conformation.