C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 3/18 (2006.01) B27K 3/34 (2006.01) B27K 3/50 (2006.01)
Patent
CA 2486059
Water-based wax emulsions, optionally for use in conjunction with alkaline copper and/or quaternary ammonium based preservatives systems, are described. These emulsions are comprised of natural or synthetic wax, nonionic surfactants having HL B values greater than 11, anionic surfactants, and water. Certain emulsion compositions as described in this specification posses the unique property of maintaining emulsion stability in wood preservatives during extended use in typical wood treatment processes. Water-repellant wood treated with the wax emulsions are described. A method of treating wood, comprising providing wood and treating the wood with the wax emulsion under conditions effective to increase its water repellency is also disclosed.
L'invention concerne des émulsions de cire à base d'eau, à utiliser éventuellement conjointement à des systèmes de protection à base de cuivre alcalin et/ou d'ammonium quaternaire. Ces émulsions sont constituées d'une cire naturelle ou d'une cire synthétique, de tensioactifs non ioniques présentant des valeurs HL B supérieures à 11, des tensioactifs anioniques, et de l'eau. Certaines compositions d'émulsion, comme il est décrit dans la description, possèdent l'unique propriété de maintenir la stabilité de l'émulsion dans des agents de protection du bois, lors d'une utilisation prolongée, dans des procédés de traitement de bois typique. L'invention concerne du bois hydrophobe traité au moyen de ces émulsions de cire. L'invention concerne également un procédé de traitement de bois, consistant à mettre à disposition du bois et à le traiter à l'aide d'une émulsion de cire, dans des conditions efficaces pour augmenter son caractère hydrophobe.
Archer Kevin
Cui Futong
Preston Alan F.
Walcheski Paul
Chemical Specialties Inc.
Deeth Williams Wall Llp
Viance Llc
LandOfFree
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