The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
Aug. 18, 2007
Marco Greb, Nürnberg, DE;
Martin Schaal, Hohenstadt, DE;
Thomas Schuster, Lauf, DE;
Walter Ziegler, Velden, DE;
Marco Greb, Nürnberg, DE;
Martin Schaal, Hohenstadt, DE;
Thomas Schuster, Lauf, DE;
Walter Ziegler, Velden, DE;
Eckart GmbH, , DE;
Abstract
The invention relates to the use of spherical metal particles, which are free of antimony and/or antimony-containing compounds, as a laser marking agent or laser weldability agent in a plastic, wherein the particle size distribution of the spherical metal particles, as determined by means of laser granulometry, in the form of the volume-averaged cumulative undersize particle size distribution, has a Dvalue of <110 μm, a Dvalue of <75 μm, and a D<45 μm. The invention further relates to a laser-markable and/or laser-weldable plastic which a laser marking agent consisting of spherical metal particles, which are free of antimony and/or antimony-containing compounds, wherein the particle size distribution of the spherical metal particles, as determined by means of laser granulometry, in the form of the volume-averaged cumulative undersize particle size distribution, has a Dvalue of <110 μm, a Dvalue of <75 μm, and a D<45 μm.