Pyrithione biocides enhanced by silver, copper, or zinc ions

Details Pyrithione biocides enhanced by silver, copper, or zinc ions Pyrithione biocides enhanced by silver, copper, or zinc ions

A - Human Necessities

01

N

A01N 59/16 (2006.01) A01N 43/40 (2006.01) A01P 1/00 (2006.01) A61K 31/44 (2006.01) A61K 33/24 (2006.01) A61P 17/00 (2006.01) A61P 31/04 (2006.01) C08K 3/10 (2006.01) C08K 5/3432 (2006.01) C09D 5/14 (2006.01) C09D 7/12 (2006.01) C09J 11/06 (2006.01) C10L 1/24 (2006.01) C10M 125/02 (2006.01) C10M 125/04 (2006.01) C10M 125/10 (2006.01) C10M 125/18 (2006.01) C10M 125/22 (2006.01) C10M 125/26 (2006.01) C10M 129/20 (2006.01) C10M 129/26 (2006.01) C10M 133/44 (2006.01) C10M 135/28 (2006.01)

Patent

CA 2375975

The present invention is directed to an antimicrobial composition, comprising pyrithione or a pyrithione complex; and a zinc or copper or silver source selected from the group consisting of zinc or copper or silver salts, oxides, hydroxides, sulfates, chlorides, metals, and combinations thereof; wherein the weight ratio of the zinc or copper or silver source to the pyrithione or the pyrithione complex is in the range from about 1:300 to about 50:1, and wherein the antimicrobial composition has an enhanced biocidal effect against a variety of free-living microorganisms or biofilms. Also disclosed is a method of inhibiting the growth of free-living microorganisms or biofilm utilizing the above antimicrobial composition, as well as use of such antimicrobial compositions in various products including fuels, fluids, lubricants, coatings, adhesives, sealants, elastomers, soaps, cosmetics, plastic or woven or non-woven fibers, pharmaceuticals, and as preservatives for the above products.

L'invention concerne une composition antimicrobienne comprenant du pyrithione ou un complexe de pyrithione ; et une source de zinc, de cuivre ou d'argent sélectionnée parmi le groupe comprenant des sels de zinc, de cuivre ou d'argent, des oxydes, des hydroxydes, des sulfates, des chlorures, des métaux, et des combinaisons associées ; le rapport pondéral de la source de zinc, de cuivre ou d'argent par rapport au pyrithione ou au complexe de pyrithione étant compris entre environ 1:300 et environ 50:1 ; et la composition antimicrobienne ayant un effet biocide contre une variété de micro-organismes ou de films biologiques libres. L'invention concerne également un procédé permettant d'inhiber la croissance de micro-organismes ou de films biologiques libres à l'aide de ladite composition antimicrobienne ; ainsi que l'utilisation de telles compositions antimicrobiennes dans divers produits, y compris les carburants, les lubrifiants, les revêtements, les adhésifs, les produits d'étanchéité, les élastomères, les savons, les cosmétiques, les fibres plastiques tissées ou non-tissées, les médicaments. Ces compositions peuvent également être utilisées comme conservateurs pour les produits susmentionnés.

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