A - Human Necessities – 01 – N
Patent
A - Human Necessities
01
N
A01N 25/26 (2006.01) A01N 25/02 (2006.01) A01N 37/18 (2006.01) A01N 37/46 (2006.01) A01N 65/00 (2006.01)
Patent
CA 2488212
There is provided an improved insect repellent emulsion composition. The composition has an inner discontinuous phase and an outer continuous phase. The inner discontinuous phase and/or outer continuous phase has an insect repellent active therein. The inner discontinuous phase is generally dispersed in the outer continuous phase and is in the form of discrete droplets having a multimodal droplet size distribution. There is also provided a method of protecting skin from being bitten by insects in which the above composition is applied topically to the skin. There is also provided a method of enhancing the performance of a insect repellent emulsion by forming the inner discontinuous phase as a multiplicity of droplets having a multimodal droplet size distribution. There is also provided a method of preparing an emulsifier- free insect repellent composition.
L'invention concerne une composition d'émulsion insectifuge améliorée. Cette composition comprend une phase interne discontinue et une phase externe continue. La phase interne discontinue et/ou la phase externe continue contiennent un agent insectifuge actif. La phase interne discontinue est généralement dispersée dans la phase externe continue et se présente sous forme de gouttelettes discrètes à distribution multimodale. L'invention concerne également un procédé de protection de la peau contre les piqûres d'insectes, consistant à appliquer par voie topique ladite composition sur la peau. L'invention concerne en outre un procédé visant à améliorer l'efficacité d'une émulsion insectifuge par formation de la phase interne discontinue par une multiplicité de gouttelettes à distribution multimodale. L'invention concerne enfin un procédé de préparation d'une composition insectifuge sans émulsifiant.
Gonzalez Anthony D.
Pechko Andrew H.
Polywoda Vincent T.
Avon Products Inc.
Mbm & Co.
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