A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 9/14 (2006.01) A61K 9/16 (2006.01)
Patent
CA 2656974
Thermochromatic dyes may be added to compositions to be applied to skin in order to indicate where the composition is applied. After application to the skin the composition will turn from colored to colorless in a short period of time as its temperature rises in response to the curing reaction and to heat from the skin. The dyes are microencapsulated in order to avoid migration of the dye into the wound and to remain protected and functional. The dyes are selected such that they have a transition temperature between room temperature and that of the skin.
L'invention concerne l'ajout de colorants thermochromatiques à des compositions à appliquer sur la peau, afin de signaler l'endroit où la composition a été appliquée. Après application sur la peau, la composition colorée devient rapidement incolore au fur et à mesure que sa température augmente en réponse à la réaction de durcissement et à la chaleur de la peau. Les colorants sont microencapsulés, afin d'éviter que le colorant ne migre dans la plaie et afin qu'il reste protégé et fonctionnel. Les colorants sont sélectionnés de sorte que leur température de transition est comprise entre la température ambiante et celle de la peau.
Arehart Kelly D.
Brown Tameka S.
Linton Lisa A.
Macdonald John Gavin
Oslund Susan G.
Borden Ladner Gervais Llp
Kimberly-Clark Worldwide Inc.
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