Laser-welded article of laser-transmissible workpiece including alkaline earth metal salt of anthraquinone acidic dye
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United States of America Patent
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May 11, 2010
Grant Date -
Dec 20, 2007
app pub date -
Feb 7, 2006
filing date -
Feb 9, 2005
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Abstract
A laser-welded article comprises: a laser-transmissible workpiece made from a laser-transmissible colored resin composition including at least a thermoplastic resin and an alkaline earth metal salt of an anthraquinone-type acidic dye represented by the following chemical formulae (1) and/or (2) ##STR00001## and a laser-absorptive workpiece putting the laser-transmissible workpiece together, wherein the workpieces are welded at the put position thereof by irradiated laser towards the laser-transmissible workpiece that transmits therethrough and is absorbed into the laser-absorptive workpiece.
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