| 摘要 |
<p>A glass filler for a polycarbonate resin, whereby the refractive index of the glass filler can be improved to the same level as a polycarbonate resin, and the transparency of a molded product after reinforced with such a filler can be maintained without coloration, and a polycarbonate resin composition employing such a filler, are provided. The polycarbonate resin composition comprises a polycarbonate resin and a glass filler which comprises, as inorganic components in the entire glass filler, from 50 to 60 mass% of silicon dioxide (SiO 2 ), from 7 to 15 mass% of aluminum oxide (Al 2 O 3 ), from 10 to 20 mass% of calcium oxide (CaO), from 0 to 5 mass% of magnesium oxide (MgO), from 2 to 8 mass% of zirconium oxide (ZrO 2 ), from 0 to 10 mass% of zinc oxide (ZnO), from 0 to 10 mass% of strontium oxide (SrO), from 0 to 18 mass% of barium oxide (BaO), from 0 to 2 mass% of lithium oxide (Li 2 O), from 0 to 2 mass% of sodium oxide (Na 2 O), and from 0 to 2 mass% of potassium oxide (K 2 O), provided that the total content of the lithium oxide (Li 2 O), the sodium oxide (Na 2 O) and the potassium oxide (K 2 O) is from 0 to 2 mass% based on the entire glass filler.</p> |
