| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light reflection plate which has excellent light reflexivity and is hardly colored and embrittled over a long period of time and which has excellent weather resistance. <P>SOLUTION: The light reflection plate is obtained by laminating and integrating two or more polyolefin resin layers. The light reflection plate contains 50 to 200 g/m<SP>2</SP>of an inorganic filler and its thickness is 0.2 to 1.5 mm. An outside polyolefin resin layer contains 65 wt.% or more of the inorganic filler contained in the light reflection plate. In the outside polyolefin resin layer, the amount of the inorganic filler per 100 parts weight of the polyolefin resin constituting respective polyolefin resin layers is larger compared with other polyolefin resin layers. Moreover thickness of the outside polyolefin resin layer is 0.1 to 0.7 mm. <P>COPYRIGHT: (C)2010,JPO&INPIT |
