A method and a surface treatment agent for preventing...

C - Chemistry – Metallurgy – 09 – D

Patent

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C09D 5/16 (2006.01) A01N 43/40 (2006.01) A01N 59/02 (2006.01)

Patent

CA 2510140

An ecofriendly method of inhibiting biofouling on surfaces under water by using nicotine and selenium in the form of Se(0), or such a substance that can be converted into them. Both of the substances are necessary to oxygen dependent organisms and will be used after conversion, but are toxic in high doses. By adding the substances to paint or other surface treatment agent that marine surfaces are treated with, organisms that are trying to establish themselves on the surfaces will be exposed to so high doses, that reactions on which the settling is based are disturbed. When the substances leak out into the seas, they will act as environment protectors, as they promote the development of organisms.

Procédé écologique servant à empêcher l'encrassement biologique de surfaces sous l'eau au moyen de nicotine et de sélénium sous forme de Se(0) ou d'une substance pouvant être convertie en ces derniers. Les deux substances sont nécessaires aux organismes dépendant de l'oxygène et seront utilisées après conversion, mais elles présentent une toxicité en doses élevées. L'apport de ces substances à des la peinture ou à un autre agent de traitement de surfaces exposées à des environnements marins soumettra les organismes tentant de s'établir sur ces surfaces à des doses tellement élevées qu'elles seront de nature à perturber les réactions nécessaires à l'implantation de ces organismes. Si ces substances se répandent dans la mer, elles joueront un rôle de protection de l'environnement, étant donné qu'elles favorisent le développement d'organismes.

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