| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyoxymethylene resin composition having excellent laser welding characteristics without reducing laser beam transmittance when a polyoxymethylene resin is compounded with a colorant. <P>SOLUTION: The polyoxymethylene resin composition for laser welding is composed of a resin composition prepared by compounding 100 pts.wt. of the polyoxymethylene resin with (A) 0.001-5 pts.wt. of the colorant. The laser beam transmittance measured in a molded product prepared from the composition and having 3 mm thickness is ≥15% at 700-1,200 nm wavelength of the laser beams used for the laser welding. For further detail, the polyoxymethylene resin composition for laser welding is characterized in that (A) the colorant contains at least one pigment selected from monoazoic, disazoic, heterocyclic, phthalocyaninic, quinacridonic, perylenic pigments, diketopyrrolopyrrole, isoindolinone, titanium yellow and ultramarine pigments. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
