Aqueous media for the treatment of wood and wooden materials and a process for such treatment

In a deep penetrating aqueous composition for the impregnation treatment of wood or wooden materials having open pores by which the composition may penetrate the wood or wooden material, wherein the composition consists essentially of,

• a water-soluble or water-dispersible, oxidatively drying, organic binder based on a low-molecular weight, 1,3-butadiene homo- or co-polymer, and
• an effective amount of a wood preservative
• but substantially without an effective amount of any pore-sealing additives,
• and wherein,
• the binder is a polymer carrying quaternary ammonium groups and is obtained by,
• reacting an epoxy-group-containing 1,3-butadiene homo- or co-polymer, wherein the basic polymer is made up of .gtoreq.70 mole % of 1,3-butadiene monomer units with an amine,
• and then reacting the product of this amination with a low-molecular weight monoepoxide so that 0.05-0.5 mole of the quaternizable amino groups is quaternized per 100 g of the amination product,
• the improvement wherein, the amine reacted with the epoxy-group-containing polymer is a secondary or primary aliphatic amine of the formula
• R.sup.1 --NH--R.sup.2
• wherein R.sup.1 and R.sup.2, independently, each is alkyl, hydroxyalkyl, or alkoxyalkyl, each of 1-7 carbon atoms, the OH or alkoxy substituent not being in the .alpha.-position, or R.sup.1 has the meaning above and R.sup.2 is hydrogen.