| 摘要 |
PURPOSE:To keep the radio wave reflecting characteristic for a long period, to eliminate exfoliation between layers and to simplify the manufacture process by laminating sequentially a high weather resistant thermoplastic resin layer, a metallic layer and an oxymethylenic polymer layer contg. an inorganic filler and specifying the thickness of each layer and the content of the inorganic filler. CONSTITUTION:The excellent weather resistant thermoplastic resin layer 3, the metallic layer 2 and the oxymethylenic polymer layer 1 contg. the inorganic filler are laminated sequentially, the thickness of the layers 3, 2, 1 is selected respectively as 5mu-5mm., 5mu-1mm. and 500mu-15mm., and the content of the inorganic filler of the layer 1 is selected as 10-80wt%. The oxymethylenic polymer used in the reflecting plate is a thermoplastic resin having a formaldehyde or trioxane as the component. As a typical example, a single polymer of formaldehyde, a trioxane homopolymer, or a copolymer between a formaldehyde and/or a trioxane and 0.1-15wt% of a ring ether, ring acetale and/or a normal chain polyacetale is used. |
