| 简介 |
PURPOSE : A light absorbing resin composition for laser welding, a light absorbing resin molded product prepared by using the composition, and a method for preparing the light absorbing resin molded product are provided to obtain transparency after laser welding and to improve the stability of laser welding.
CONSTITUTION : A light absorbing resin composition for laser welding comprises a polymer dispersant having a glass transition temperature of 30 deg.C or more; and a laser light absorbing microparticle which is a tungsten oxide microparticle represented by WyOz or a composite tungsten oxide microparticle represented by MxWzOz, wherein 2.0<=z/y<3.0; 0.001<=x/y<=1; and M is at least one element selected from H, He, an alkali metal, an alkaline earth metal, a rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi and I.
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