Synergistic antimicrobial compositions containing...

A - Human Necessities – 01 – N

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A01N 43/56 (2006.01) A01N 25/22 (2006.01)

Patent

CA 2241859

Compositions comprising a compound of formula (I) where R and R' are independently selected from hydrogen and alkyl of 1 to 4 carbon atoms, R" is a moiety selected from the group consisting of (a) hydrogen, (b) a halogen atom selected from the group consisting of F, Cl, Br, and I, and (c) a nitro group, or the hydrochloride salt of said compound; and at least one preservative are disclosed which are synergistically effective compared to the respective components alone in controlling and/or reducing the growth of microorganisms in or on a material or medium. Methods to control and/or reduce the growth of microorganisms and prevent spoilage caused by microorganisms with the use of the compositions of the present invention are also disclosed.

La présente invention concerne des compositions comportant un composé de formule I, dans laquelle R et R' sont choisis, de manière indépendante, entre l'hydrogène et un alkyle ayant de 1 à 4 atomes de carbone, R" est une fraction choisie dans le groupe constitué par (a) l'hydrogène, (b) un atome d'halogène choisi dans le groupe constitué par F, Cl, Br et I, et (c) un groupe nitro, ou le chlorhydrate dudit composé; et au moins un conservateur; ils possèdent une efficacité synergique, comparés aux différents constituants seuls, pour contrôler ou réduire, ou les deux, la croissance de microorganismes dans ou sur une matière ou un milieu. L'invention concerne aussi des procédés permettant de contrôler ou de réduire, ou les deux, la croissance de microorganismes et d'empêcher la détérioration causée par des microorganismes, grâce à l'utilisation des compositions de la présente invention.

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