PURPOSE: To improve the durability by laminating a metallic layer having a coating layer with excellent weather resistance and an oxymethylene group polymer layer contg. an inorganic filler.
CONSTITUTION: The coating film layer 3 having excellent weather resistance, the metallic layer 2 and the olefine group polymer layer 1 contg. the inorganic filler are laminated via primers 2a, 2b to strengthen the bonding force. The thickness of the coating layer 3 is 5μ∼1mm and the thickness of the metallic layer 2 is also 5μ∼1mm. The thickness of the oxymethylene group polymer layer 1 contg. the inorganic filler is 500μ∼15mm. The rate of content of the inorganic filler in the polymer layer 1 is 10∼80wt%. The reflecting plate for antenna has excellent durability and also excellent radio wave reflecting characteristic.
MACHIDA MITSUNOBU
KOBAYASHI MIKIO
YOSHIDA HIROICHI
