Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Steven A. Jones0
James B. Carroll, Jr.0
Date of Patent
March 6, 2007
0Patent Application Number
109767770
Date Filed
November 1, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Laser marking of plastic material is achieved by incorporating into the plastic a laser marking particulate additive having a particle size of less than 100 nm. A mixed oxide particle of tin and antimony having a particle size of 10–70 nm is useful as a laser marking additive when using a YAG laser. A metallic powder can further be added to improve marking contrast.
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