A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 9/44 (2006.01) B41M 5/26 (2006.01)
Patent
CA 2609821
It is intended to provide a marking method by which a highly distinguishable composition for oral administration (for example, a drug or a food) can be obtained without worsening the qualities of the composition for oral administration and which has a high productivity. Namely, a method of marking a composition for oral administration which comprises the step of dispersing a color change-inducing oxide in the composition for oral administration and the step of scanning the surface of the composition for oral administration with a laser beam of from 200 nm to 1100 nm in wavelength and from 0.1 W to 50 W in average output to thereby aggregate particles of the color change-inducing oxide and induce the color change. The color change-inducing oxide to be used herein is at least one member selected from the group consisting of titanium oxide, yellow iron sesquioxide and iron sesquioxide.
La présente invention concerne un procédé de marquage permettant l~obtention d~une composition hautement différenciable destinée à une administration orale (par exemple un médicament ou un aliment) ne provoquant aucune détérioration des qualités de ladite composition et présentant un rendement élevé. L~invention concerne plus particulièrement un procédé de marquage d~une composition destinée à une administration orale consistant à disperser un oxyde induisant un changement de couleur dans la composition destinée à une administration orale, et à balayer la surface de ladite composition à l~aide d~un faisceau laser de 200 nm à 1100 nm de longueur d~ondes et de 0,1 W à 50 W en termes de sortie moyenne pour ainsi agréger les particules de l~oxyde induisant un changement de couleur et induire le changement de couleur. L~oxyde induisant un changement de couleur à utiliser ici est au moins un élément choisi dans le groupe constitué de l~oxyde de titane, du sesquioxyde de fer jaune et du sesquioxyde de fer.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Eisai R&d Management Co. Ltd.
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