| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a material for LED light reflectors, which is molded into a light reflector with good moldability, and gives a light reflector in which deterioration in light reflectivity due to the influence of heat scarcely occurs. <P>SOLUTION: The resin composition contains: 100 pts.wt of a hydrogenated crystalline cyclic olefin ring-opening polymer, which is obtained by hydrogenating a cyclic olefin ring-opening polymer having a repeating unit derived from a polycyclic norbornene-based monomer by using a homogeneous ruthenium catalyst, in the presence of an inorganic oxide containing, as a main component, silicon oxide and/or magnesium oxide, and containing aluminum oxide in a content ratio of 5 wt.% or less; and 0.5-8 pts.wt of the inorganic oxide. <P>COPYRIGHT: (C)2013,JPO&INPIT |
