Patent ID: 8841359
Filing Date: 2014-09-23
Classification: B60C,C08J,C08K,C08L

Abstract:
1. A method for producing an elastomer composition (C) having no thermoplasticity which comprises a matrix of a thermoplastic resin (A) in which a dispersed phase of an elastomer component (B) is finely dispersed to form an island-in-sea structure, wherein volume ratios of the thermoplastic resin (A) and the elastomer component ( where φd and ηd, respectively, indicate a volume ratio and a melt viscosity of the elastomer component (B) and φm and ηm, respectively, indicate a volume ratio and a melt viscosity of the thermoplastic resin (A), said method comprising: mixing and shaping a thermoplastic resin (A), an elastomer component (B) and a plasticizer (D) in a ratio satisfying the following formulae (II) and (III): wherein φd and ηd, respectively, indicate a volume ratio and a viscosity of the elastomer component (B), φm indicates a volume ratio of the thermoplastic resin (A), φ1 indicates a volume ratio of the plasticizer (D) and ηml indicates a melt viscosity of a mixture of the thermoplastic resin (A) and the plasticizer (D); and, then, removing the plasticizer (D) by evaporation, extraction or migration.