| 摘要 |
<p>A cyclic block copolymer composition that comprises a cyclic block copolymer resin with a pre-hydrogenation polymerized vinyl aromatic monomer content within a range of from 75 wt% to 90 wt%, based upon total pre-hydrogenation vinyl aromatic-conjugated diene block copolymer weight, a Mw within a range of from 30,000 g/M to 125,000 g/M, a shear viscosity at a shear rate of 1000 sec-1 and a temperature of 280 °C of less than 50 pascal seconds (Pa-s), an unnotched Izod toughness (ASTM D256)) at room temperature = 1.8 foot-pounds per inch (315.2 newtons per meter), and a tensile modulus (ASTM D638) = 280,000 psi (1930.5 MPa) yields a variety of articles of manufacture, especially a thin wall light guide panel that has a diagonal measure = 13.3 inches (33.8 cm).</p> |
