| 摘要 |
The present invention which is directed to a composition comprising: (a) a poly(arylene ether); (b1) a radial block copolymer of an alkenyl aromatic monomer and a conjugated diene; wherein the radial block copolymer has about 50 to about 70 weight percent of repeating units derived from the alkenyl aromatic monomer and a number average molecular weight of about 50,000 to about 70,000 atomic units; (b2) a linear block copolymer of an alkenyl aromatic monomer and a conjugated diene; wherein the linear block copolymer has about 55 to about 70 weight percent of repeating units derived from the alkenyl aromatic monomer; wherein the ratio of (b1) to (b2) is 0.5:1 to 4:1; (c) one or more optical enhancing agents; and (d) a hydrocarbon resin selected from the group consisting of hydrogenated alicyclic hydrocarbon resins and hydrogenated terpene resins; wherein the composition is characterized by at least one of the following properties: (i) a multiaxial impact of at least 20 J as measured by ASTM D 3763-08; (ii) a percent haze of 15 percent or less as measured by ASTM D 1003-00; and (iii) a percent transmittance of 75 percent or more as measured by ASTM D 1003. |
