A - Human Necessities – 01 – N
Patent
A - Human Necessities
01
N
A01N 59/14 (2006.01) C01B 35/12 (2006.01) C09K 21/02 (2006.01)
Patent
CA 2340927
A method for producing products for treating wood and other cellulose products to improve the flame retardancy, and the insecticidal and fungicidal properties of the products. A calcium borate ore, such as colemanite, is reacted first with an acid such as acetic acid. The reaction products, including calcium in solution, are then treated with ammonia, producing ammonium pentaborate. The resulting composition is applied to the wood or other cellulose products by methods such as pressure, diffusion, or immersion and/or dipping treatment. The products have superior leach resistance to water when compared to conventional treatment compounds.
La présente invention concerne la production d'agents chimiques de traitement des produits ligneux et cellulosiques de façon à en augmenter les caractères ignifuges, insecticides et fongicides. A cet effet, on part d'un minerai de borate de calcium tel que colemanite que l'on fait réagit avec un acide tel que l'acide acétique. On traite alors à l'ammonium les produits de réaction, y compris le calcium en solution, ce qui donne un pentaborate d'ammonium. On applique ensuite aux produits ligneux ou cellulosiques considérés la composition résultante, par un procédé par pressurisation, diffusion, ou immersion et/ou trempage. Les produits de l'invention présentent une résistance à la lixiviation supérieure à celle des composés utilisés pour les traitements conventionnels.
Robic
Specialty Boron Products Llc
LandOfFree
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