| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a resin material for an optical instrument excellent in an antistatic property. <P>SOLUTION: The antistatic resin material for an optical instrument comprises a composition obtained by adding 0.1-20 wt.% of a carbon nanotube to a thermoplastic resin. The carbon nanotube has, for instance, a cylindrical shape having a diameter of 0.01 μm and a length of 1-10 μm and comprises 100% of a carbon atom. It does not generally exist alone in a cylindrical shape but exists in an entangled state, When the amount of the carbon nanotube to be added is 0.1 wt.% or less, the surface resistance of a resin material is not reduced to 10<SP>11</SP>Ω or less and thus the desired antistatic property cannot be attained. When the amount of the carbon nanotube to be added is more than 20 wt.%, on the other hand, a problem occurs in relation to moldability of a resin material, etc. <P>COPYRIGHT: (C)2003,JPO |
