Laser marking of effect coatings
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United States of America Patent
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Mar 27, 2001
Grant Date -
N/A
app pub date -
Aug 13, 1999
filing date -
Aug 14, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a process for generating a marking on an effect coating or molding compound comprising cholesteric liquid-crystalline main-chain or side-group polymers or comprising a combination of main-chain and side-group polymers, which comprises inducing a color change at the irradiated sites of the effect coating or molding compound by laser irradiation.
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