| 摘要 |
PURPOSE:To provide a thermoplastic elastomer improved in blocking resistance by blending a thermoplastic styrene elastomer with a specific organopolysiloxane and an org. peroxide. CONSTITUTION:100 pts.wt. thermoplastic styrene elastomer is blended with 1-500 pts.wt. organopolysiloxane represented by the formula [R<1> is an unsatd. aliph. group; R<2> is a monovalent (un)substd. hydrocarbon group contg. no unsatd. aliph. group; and a and b are values satisfying the following relation 0<a<1, 0.5<b<3, and 1<a+b<3] and having a viscosity (at 23 deg.C) of at least 1,000cSt, and 0.005-1 pt.wt. org. peroxide having a 10-min half-life temp. of 100 to 220 deg.C, followed by milling under heating at 100 to 300 deg.C for at least 30min. |
