A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 8/64 (2006.01) A61K 8/26 (2006.01) A61K 8/28 (2006.01) A61K 8/34 (2006.01) A61Q 15/00 (2006.01) A61K 8/92 (2006.01)
Patent
CA 2470059
Clear solid suspension antiperspirant compositions comprise 0.5 to 50% by weight of a particulate antiperspirant active material of which less than 50% by weight of its particles are below 10mm diameter and a refractive index of from 1.49 to 1.57 at 22oC is suspended in a water-immiscible carrier liquid of which at least 50% by weight is selected from liquid non-volatile silicone oils and liquid alkyl-aryl esters and not more than 25% by weight of the carrier liquid comprises a volatile silicone oil. The carrier liquid and the antiperspirant have refractive indexes which differ by no more than 0.02 at 22oC and the structurant which solidifies the carrier liquid comprises a fibre- forming non-polymeric structurant, and preferably an N-acyl aminoacid amide such as GP1 and/or a cyclodipeptide such as a thymol derivative of (2S-cis)-(- )-5-benzyl-3,6-dioxo-2-piperazine acetic acid.
L'invention concerne des compositions anti-transpirantes à suspension solide claire contenant 0,5 à 50 % en poids d'un matériau actif anti-transpirant particulaire dont moins de 50 % en poids de ses particules ont un diamètre inférieur à 10µm et un indice de réfraction compris entre 1,49 et 1,57 à 22 ·C est suspendu dans un liquide porteur immiscible avec l'eau dont au moins 50 % en poids est choisi parmi les huiles de silicone non-volatiles liquides et les esters alkyl-aryl liquides et pas plus de 25 % en poids du liquide porteur comprend une huile de silicone volatile. Le liquide porteur et l'anti-transpirant possèdent des indices de réfraction qui diffèrent de l'ordre de 0,02 maximum à 22 ·C et le structurant qui solidifie le liquide porteur comprend un structurant non-polymérique générateur de fibre, et de préférence un N-acyl amide aminoacide tel que GP1 et/ou un cyclodipeptide tel qu'un dérivé de thymol de (2S-cis)-(-)-5-benzyl-3,6-dioxo-2-piperazine acide acétique.
Fairclough Colette Marie
Franklin Kevin Ronald
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Plc Unilever
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