Substrates and methods for laser marking same
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United States of America Patent
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Dec 29, 1998
Grant Date -
N/A
app pub date -
Dec 11, 1995
filing date -
Dec 11, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Substrates suitable for being marked by light energy from a laser are disclosed. Such substrates include a base substrate component and a filler pigment component coupled to the base substrate component and including a combined metal component and a glass forming component other than the combined metal component. The filler pigment component is present in an amount effective to, as a result of exposing the substrate to light energy from a laser, produce a colored glass-like pigment component coupled to the base substrate component having a contrasting color relative to the filler pigment component. Markings, for example, on electrical wire insulation, having higher contrast and greater durability are advantageously provided.
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