Laser-welded article
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United States of America Patent
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N/A
Issued Date -
Mar 22, 2007
app pub date -
Sep 18, 2006
filing date -
Sep 21, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A laser-welded article comprises: an integral construction of piled workpieces, that are welded by exothermic through irradiating laser and include thermoplastic resin, comprises of a laser-transmissible-absorptive molded workpiece including a thermoplastic resin and 0.001 to 0.3 weight % of colorant consisting of nigrosine which has an absorption coefficient: .epsilon. for a ray of 940 nm ranging form 4000 to 7000, that transmits laser partially and absorbs laser partially, and a laser-absorptive molded workpiece including a thermoplastic resin and 0.1 to 5 weight % of diverse colorant comprising of nigrosine and/or carbon black, that absorbs the laser.
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