Ammoniacal borate and zinc compositions, and methods for...

Details Ammoniacal borate and zinc compositions, and methods for... Ammoniacal borate and zinc compositions, and methods for...

A - Human Necessities

01

N

A01N 59/14 (2006.01) A01N 59/16 (2006.01)

Patent

CA 2563083

Compositions and methods are provided for treating wood products to provide leach~resistant protection against fungal decay, termites and other wood destroying organisms. The preservative compositions provided include ammonia- stabilized solutions of zinc and boron, preferably in a molar ratio of Zn:B of between about 0.4:1 and 5:1, and are essentially copper free. The preservative may be applied by vacuum and/or pressure treatment or dip treatment under atmospheric pressure.

L'invention concerne des compositions et des procédés qui permettent de traiter des produits du bois afin d'assurer une protection résistante aux effets de la lixiviation contre la pourriture fongique, les termites et d'autres organismes destructeurs du bois. Les compositions de préservation utilisées comprennent des solutions de zinc et de bore stabilisées à l'ammoniac, de préférence à un rapport molaire de Zn:B compris entre environ 0.4:1 et 5:1, et sont sensiblement exemptes de cuivre. Le produit de préservation peut être appliqué au moyen d'un traitement sous vide et/ou sous pression ou d'un traitement dans un bain à pression atmosphérique.

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