Laser-welded article

Details Laser-welded article Laser-welded article

2011-06-14

2011-06-14

Hon, Sophie (Department: 1783)

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

C428S172000, C428S220000, C428S057000, C156S272800

Reexamination Certificate

active

07960012

ABSTRACT:
It is an object of the present invention to provide a laser-welded article that workpieces prepared simply can be easily unified by laser in one laser welding process without using complicated processes. Moreover, the laser-welded article has an excellent appearance and sufficient welding strength of the molded workpieces, and does not damage the resin property.The laser-welded article comprises:an integral construction of a single workpiece that at least a part of curled workpiece is overlapped or plural workpieces that at least a part of each workpiece is piled, which is welded by exothermic through irradiating laser, wherein the single laser-transmissible-absorptive molded workpiece or the plural laser-transmissible-absorptive molded workpieces include a thermoplastic resin and a laser-transmissible absorbent to have an absorbance: a ranging from 0.07 to 2.0, and have abilities of absorbing at least partial beam of the laser and transmitting another partial beam of the laser.

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Office Action from U.S. Appl. No. 11/990,692, mailed Nov. 30, 2009.
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