AQUEOUS LASER-SENSITIVE COMPOSITION FOR MARKING SUBSTRATES
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United States of America Patent
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app pub date -
Oct 16, 2009
filing date -
Oct 27, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Aqueous composition comprising a colour former, a developer, and a binder, wherein (a) the weight ratio between the developer and the colour former is in the range of from 1 to 5; (b) the binder comprises an acrylate binder, comprising acrylic acid and styrene, and at least one additional monomer selected from the group consisting of α-methyl styrene, ethyl acrylate and 2-ethylhexyl acrylate; and (c) the colour former and/or the developer are present in an un-encapsulated form; a process for the preparation of these compositions, substrates coated with this composition and a process for its preparation, and a process for preparing a marked substrate using this composition.
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Cited Art Landscape
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