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1. WO2010049281 - AQUEOUS LASER-SENSITIVE COMPOSITION FOR MARKING SUBSTRATES

Publication Number WO/2010/049281
Publication Date 06.05.2010
International Application No. PCT/EP2009/063520
International Filing Date 16.10.2009
IPC
B41M 5/327 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
5Duplicating or marking methods; Sheet materials for use therein
26Thermography
30using chemical colour formers
323Organic colour formers, e.g. leuco dyes
327with a lactone or lactam ring
B41M 5/333 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
5Duplicating or marking methods; Sheet materials for use therein
26Thermography
30using chemical colour formers
333Colour developing components therefor, e.g. acidic compounds
B41M 5/337 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
5Duplicating or marking methods; Sheet materials for use therein
26Thermography
30using chemical colour formers
337Additives; Binders
CPC
B41M 2205/04
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING,
2205Printing methods or features related to printing methods; Location or type of the layers
04Direct thermal recording [DTR]
B41M 5/26
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING,
5Duplicating or marking methods; Sheet materials for use therein
26Thermography
B41M 5/3275
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING,
5Duplicating or marking methods; Sheet materials for use therein
26Thermography
30using chemical colour formers
323Organic colour formers, e.g. leuco dyes
327with a lactone or lactam ring
3275Fluoran compounds
B41M 5/3336
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING,
5Duplicating or marking methods; Sheet materials for use therein
26Thermography
30using chemical colour formers
333Colour developing components therefor, e.g. acidic compounds
3333Non-macromolecular compounds
3335Compounds containing phenolic or carboxylic acid groups or metal salts thereof
3336Sulfur compounds, e.g. sulfones, sulfides, sulfonamides
B41M 5/3372
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING,
5Duplicating or marking methods; Sheet materials for use therein
26Thermography
30using chemical colour formers
337Additives; Binders
3372Macromolecular compounds
C08F 220/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
10Esters
12of monohydric alcohols or phenols
Applicants
  • DATALASE LIMITED [GB]/[GB] (AllExceptUS)
  • CAMPBELL, Jonathan [GB]/[CH] (UsOnly)
  • KÄSER, Adolf [CH]/[CH] (UsOnly)
  • O'NEIL, Robert Montgomery [GB]/[GB] (UsOnly)
Inventors
  • CAMPBELL, Jonathan
  • KÄSER, Adolf
  • O'NEIL, Robert Montgomery
Common Representative
  • BASF SE
Priority Data
08167676.927.10.2008EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AQUEOUS LASER-SENSITIVE COMPOSITION FOR MARKING SUBSTRATES
(FR) COMPOSITION AQUEUSE SENSIBLE AU LASER POUR MARQUER DES SUBSTRATS
Abstract
(EN)
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.
(FR)
L'invention porte sur une composition aqueuse, comprenant une substance chromogène, un révélateur et un liant, dans laquelle composition (a) le rapport de poids entre le révélateur et la substance chromogène est situé dans la plage de 1 à 5 ; (b) le liant comprend un liant acrylate, comprenant de l'acide acrylique et du styrène, et au moins un monomère additionnel choisi dans le groupe comprenant le α–méthyl styrène, l'éthylacrylate et le 2-éthylhexyl acrylate ; et (c) la substance chromogène et/ou le révélateur sont présents sous une forme non encapsulée ; et sur un procédé pour la préparation de ces compositions, sur des substrats revêtus de cette composition et sur un procédé pour sa préparation, et sur un procédé pour préparer un substrat marqué à l'aide de cette composition.
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