Use of phthalocyanines as marking substances for liquids

Details Use of phthalocyanines as marking substances for liquids Use of phthalocyanines as marking substances for liquids

C - Chemistry, Metallurgy

07

D

C07D 487/22 (2006.01) C09B 47/067 (2006.01) C10L 1/00 (2006.01) G01N 33/28 (2006.01)

Patent

CA 2554132

The invention relates to the use of special phthalocyanines carrying substituents bound by methylene groups on the skeletal structure thereof, as marking substances for liquids, especially mineral oils and liquids, and especially mineral oils containing at least one such phthalocyanine as a marking substance. The invention also relates to novel special phthalocyanines carrying substituents bound by methylene groups on the skeletal structure thereof.

La présente invention concerne l'utilisation de phthalocyanines spéciales portant sur la structure fondamentale de la phthalocyanine des substituants liés par des groupes méthyle, comme matières de marquage destinées à des liquides, notamment des huiles minérales, liquides, notamment des huiles minérales contenant au moins une telle phthalocyanine comme matière de marquage. L'invention concerne également de nouvelles phthalocyanines spéciales portant sur la structure fondamentale de la phthalocyanine des substituants liés par des groupes de méthyle.

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