Multiphase polymeric material

Abstract

A multiphase polymeric material which maintains stiffness and creep resistance over a temperature range of minus 70°C to plus 90°C, the multiphase polymeric material comprising a rigid continuous phase; where in the rigid continuous phase comprises a rigid polymer and the elastic phase comprises an elastic polymer and wherein the multiphase polymeric material has a 1% secant flexural modulus according to ASTM D790 of from about 600 MPa to about 2200MPA at 20-25°C; a creep modulus of from about 400 MPa to about 1000 \MPa at 20-25°C, a load of 20% of yield stress, and a loading time of 60 minutes, according to ISO899-1; a 1% secant flexural modulus according to ASTM D790 of from about 500 MPa to about 2800 MPa at minus 20°C; a creep modulus of from about 5000 MPa to about 1500 MPa at minus 20°C; a tear strength according to ASTM D1004 of at least 20N for a film thickness of 1mm at 20-25°C; and a tear strength according to ASTM D1004 of at least 10N for a film thickness of 1mm at minus 20°C.