Coating compositions for marking substrates

C - Chemistry – Metallurgy – 09 – D

Patent

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C09D 11/02 (2006.01) C07F 7/08 (2006.01) C09D 1/00 (2006.01)

Patent

CA 2599853

The present invention provides coating compositions for marking substrates, which comprises a colour former, an amine salt of an organic metal compound, a binder, a solvent, and optionally additional components, wherein the amine salt of the organic metal compound is of formula (I) in which X is silicon or boron, and E and F are the same or different and are selected from the group consisting of a, b, c, d, e, f, g, h in which R6 and R7 are the same or different are hydrogen, C1-4-alkyl, C1-4-alkoxy, halogen, amino or carboxy, and for X = silicon o = 1 and p = 0, and R1 is aryl, aralkyl or C1-4-alkyl, or o = 1 and p = 1 , and R1 and R2 together form a one residue selected from the group consisting of a, b, c, d, e, f, g and h, and for X = boron o= 0 and p = 0, and R3, R4 and R5 are the same or different and are hydrogen, C1-12-alkyl, C1-6-hydroxyalkyl, allyl, aralkyl or arylsulfonyl, in which aralkyl or arylsulfonyl can be substituted with C1-4-alkyl, or R3 and R4 together with the nitrogen to which they are attached form a morpholino or piperidino ring. The present invention also provides a process for the preparation of the composition of the present invention, substrates coated with these compositions, a process for preparing coated substrates, a process for preparing a marked substrate using these compositions, a marked substrate obtainable by the latter process and amine salts of the organic metal compounds of formula I.

L~invention concerne des compositions d~enduction pour le marquage de substrats, comprenant un chromogène, un sel aminé d~un composé organique métallique, un liant, un solvant, et éventuellement des composants additionnels, ledit sel aminé de composé organique métallique étant de la formule (I), où X est le silicium ou le bore, et E et F sont identiques ou différents et sont choisis parmi le groupe consistant en a, b, c, d, e, f, g, h où R6 et R7 sont identiques ou différents et sont choisis parmi l~hydrogène, un alkyle en C1-4, un alcoxy en C1-4, un halogène, un groupement amino ou carboxy, et pour X = silicium, o = 1 et p = 0, et R1 est un groupement aryle, aralkyle ou alkyle en C1-4, ou o = 1 et p = 1, et R1 et R2 forment ensemble un résidu choisi parmi le groupe consistant en a, b, c, d, e, f, g et h, et pour X = bore, o = 0 et p = 0, et R3, R4 et R5 sont identiques ou différents et sont choisis parmi l~hydrogène, un alkyle en C1-12, un hydroxyalkyle en C1-6, un allyle, un aralkyle ou un arylsulfonyle, les groupements aralkyle et arylsulfonyle pouvant être substitués par un alkyle en C1-4, ou R3 et R4 forment avec l~azote auquel ils sont attachés un cycle morpholino ou pipéridino. L~invention concerne également un procédé de fabrication de la composition selon l~invention, des substrats enduits avec ces compositions, un procédé de fabrication des substrats enduits, un procédé de fabrication de substrats marqués utilisant ces compositions, un substrat marqué obtenu par ce dernier procédé, et des sels aminés de composés organiques métalliques de formule I.

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