| 摘要 |
<p>It is an object to provide a resin composition that is a suitable resin composition as a reflector plate and which can satisfy at a high level a variety of desired physical properties such as mechanical strength and heat resistance, dimensional stability, and further a light reflection and light-screening factors, and the like, as well as providing a molded article thereof. It is another object to provide a resin composition for reflector plates that can give a sufficient reflection factor and thus brightness, and at the same time satisfies the aforementioned desired physical properties even when it is used for a white LED apparatus fitted with an ultraviolet-ray emission device. A first aspect of the present invention relates to a resin composition for reflector plates characterized by containing 30 to 95% by weight of a semi-aromatic polyamide having the ratio of aromatic monomers to all the monomer components being 20% by mole or more, and 5 to 70% by weight of potassium titanate fiber and/or wollastonite. Furthermore, a second aspect of the present invention relates to a resin composition for reflector plates used for an ultraviolet-ray generating source, characterized by comprising a thermoplastic resin and at least one inorganic compound selected from the group consisting of fibrous and flaky inorganic compounds capable of reflecting ultraviolet rays as well as visible light.</p> |
