Polymeric wood preservative compositions

Details Polymeric wood preservative compositions Polymeric wood preservative compositions

A - Human Necessities

01

N

A01N 33/02 (2006.01) B27K 3/16 (2006.01) B27K 3/52 (2006.01) C08K 3/08 (2006.01)

Patent

CA 2493922

The present invention relates to a method and a wood preserving composition which comprises mixtures of a metal compound, complexing agents selected from ethanolamines, polyethylenimine, ammonia or a mixture of these compounds, and a vinyl based polymer selected from poly(vinyl alcohol)(PVA), poly(acrylamide)(PA), poly(N-vinyl pyrrolidone)(PVP) and poly(N-isopropyl acrylamide)(PNIPAM). The resulting metal amine solution can then be used to formulate a variety of metal-based cellulosic material preserving products.

L'invention concerne un procédé et une composition de conservation du bois comprenant des mélanges d'un composé métallique, d'agents complexants choisis parmi le groupe contenant éthanolamines, polyéthylèneimine, ammoniaque, ou un mélange de ces composés, et un polymère à base vinylique sélectionné parmi le groupe contenant alcool polyvinylique (PVA), polyacrylamide (PA), poly(N-vinyl pyrrolidone) (PVP) et poly(N-isopropylacrylamide) (PNIPAM). La solution d'amine métallique résultante peut être utilisée afin de formuler différents produits à base métallique de conservation de matériaux cellulosiques.

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