| abstract |
Laser light-transmitting colored resin composition is a following formula (1)n n n n n n n n In the equation (1) of, -R 1 represents hydrogen, represents a hydroxyl group or an amino group, -R 2 and -R 3 represents hydrogen, an alkyl group, a halogen, an alkoxyl group, or -SO 3 M (M is hydrogen, alkali metal, ammonium -R 4 , -R 5 , -R 6 , -R 7 , -R 8 are hydrogen, alkyl group, acyl group, acylamide group, acyl-N-alkylamide group, halogen, alkoxyl group, Or -SO 3 M (M is the same as above), and at least one of -R 2 to -R 8 is the above -SO 3 M.]. Formula (2)n n n n n n n n It may be.n n n n Laser light transmittance, colored resin composition, laser welding method |