| 摘要 |
PURPOSE:To obtain the title compsn. having excellent wear resistance, impact resistance and abrasive characteristics, causing no delamination, being injection- moldable and having excellent long-range thermal stability, which is comprised of a polyolefin consisting of an ultrahigh MW polyolefin and a low-high MW polyolefin and two specified stabilizers. CONSTITUTION:The title compsn. is comprised of 100pts.wt. polyolefin (A) consisting of an ultrahigh MW polyolefin (a) having an intrinsic viscosity of 10-40dl/g measured in decalin solvent at 135 deg.C and a low-high MW polyolefin (b) having an intrinsic viscosity of 0.1-5dl/g measured in decalin solvent at 135 deg.C, wherein the amt. of the component (a) is in the range of 15-40wt.% based on the total amt. of the components (a) and (b), having an intrinsic viscosity [eta]c in the range of 3.5-15dl/g measured in decalin solvent at 135 deg.C and a dissolution torque T of 4.5kg.cm or less, 0.005-5pts.wt. phenol stabilizer (B) and 0.005-5pts.wt. org. thioether stabilizer (C). |
