LASER ETCHING OF POLYVINYLCHLORIDE

A laser-markable polyvinylchloride composition is provided which is adapted to undergo reduced or no color change in response to irradiation with a laser beam. The composition contains polyvinylchloride and a discoloration control additive present in an effective amount to reduce or eliminate discol...

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Bibliographische Detailangaben
Hauptverfasser:	HENRY COGHLAN, JAMES PFAU, BONIFACIO DEL MUNDO
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	A laser-markable polyvinylchloride composition is provided which is adapted to undergo reduced or no color change in response to irradiation with a laser beam. The composition contains polyvinylchloride and a discoloration control additive present in an effective amount to reduce or eliminate discoloration caused by laser marking of the polyvinylchloride composition. Se proporciona una composición de cloruro de polivinilo que se puede marcar con láser, la cual está adaptada para experimentar cambio de color reducido o ningún color en respuesta a la irradiación con un rayo láser. La composición contiene cloruro de polivinilo y un aditivo de control de decoloración presente en una cantidad efectiva para reducir o eliminar la decoloración causada por la marcación mediante laser de la composición de cloruro de polivinilo.