Thermoplastic resin composition
AssigneeTechno-Umg Co., Ltd.
InventorsIchiro Kamata, Hiroyuki Atsuta
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Abstract
The present invention is to provide a thermoplastic resin composition capable of obtaining a molded article that is excellent in appearance after laser welding and a color tone and has sufficient impact property as a resin member. In addition, the present invention is to provide a molded article that is excellent in appearance after laser welding and a color tone and has sufficient impact resistance as a resin member. As a result of intensive studies, the present inventors have found that the above problems can be solved by controlling a thermoplastic resin composition containing rubber-containing graft copolymer to have appropriate reflectance in the visible light and absorptivity in the near-infrared region, and have completed the present invention.
Claims4
A thermoplastic resin composition comprising a graft copolymer (A) obtained by grafting a vinyl polymer (a2) to a rubbery polymer (a1),
- wherein when light reflectance (% R) and light absorptivity (% A) represented by the following Equation (1) are measured over a region from a visible light region to a near-infrared light region at a wavelength interval of 1 nm,
- an average value (visible % R) of the light reflectance at 380 nm to 780 nm is 5% to 10%, and
- an average value (near infrared % A) of the light absorptivity at 780 nm to 1180 nm is 25% to 93%,
- Light absorptivity (% A)=100−light transmittance (% T)−light reflectance (% R) Equation (1).
Dependencies are inferred from the claim text.