| abstract |
A thermoplastic resin composition having laser marking ability, which comprises a thermoplastic resin and at least two kinds of metal oxides, pregerably a glaze, the content of total metal oxides being 0.001 to 10 parts by weight per 100 parts by weight of said thermoplastic resin. The term metal includes silicon, boron and phosphorus. A keyboard having keys composed of the above composition is also claimed. |