摘要:
(EN) The invention relates to a method for waterproofing lignocellulosic materials by impregnating the lignocellulosic material with a waterproofing agent, whereby the lignocellulosic material is impregnated with a hardenable aqueous composition before or during waterproofing, said composition containing at least one cross-linkable compound, selected from a) low-molecular weight compounds V, having at least two N-bonded groups of formula CH2OH, wherein R=hydrogen or C1-C4 alkyl, and/or one 1,2-bis-hydroxyethan-1,2-diyl group, bridging two nitrogen atoms, β) precondensates of the compound V and & gammad;) reaction products or mixtures of the compound V with at least one alcohol, selected from C1-C6 alkanols, C2-C6 polyols and oligo-C2-C4-alkylene glycols.
摘要:
The invention relates to a method for the treatment of surfaces of wood or woodbase materials with surface treatment compositions, and the timbers or woodbase materials thus treated by impregnating with a curable aqueous composition of α) low molecular weight compounds V which have at least two N-bonded groups and/or β) precondensates of the compound V and/or γ) reaction products or mixtures of the compound V with at least one alcohol which is C1-C6-alkanols, C2-C6-polyols or oligoalkylene glycols; treating that impregnated material at elevated temperature and) treating at least one surface of the wood or woodbase material to be treated with a surface treatment composition.
摘要:
The invention relates to a method for treating wood or wood material surfaces with surface treatment agents and to the wood or wood materials treated by said method. Said method comprises the steps of a) impregnating wood, a wood material or a material for manufacturing a wood material with a hardenable aqueous composition, which contains at least one cross-linkable compound, selected from &agr;) low-molecular weight compounds V, having at least two N-bonded groups of formula CH2OH, wherein R=hydrogen or C1-C4 alkyl, and/or one 1,2-bishydroxyethan-1,2-diyl group, bridging two nitrogen atoms, &bgr;) precondensates of the compound V and ϝ) reaction products or mixtures of the compound V with at least one alcohol, selected from C1-C6 alkanols, C2-C6 polyols and oligoalkylene glycols, b) treating the material obtained in step a) at an elevated temperature and, optionally, transforming said material into a wood material and c) treating at least one surface of the wood or wood material to be treated with a surface treatment agent and, optionally, drying the treated surface in a manner known per se.
摘要:
The invention relates to a method for impregnating lignocellulosic materials, in particular, wood, wood materials or materials for manufacturing wood materials, with effect agents. The invention also relates to novel compositions, containing effect agents. Said method comprises the steps of a) impregnating the lignocellulosic material with a fluid formulation, which contains at least one effect agent in a dissolved or dispersed form, b) impregnating said material, during or after step a), with a hardenable aqueous composition, which contains at least one cross-linkable compound, selected from &agr;) low-molecular weight compounds V, having at least two N-bonded groups of formula CH2OH, wherein R=hydrogen or C1-C4 alkyl, and/or one 1,2-bishydroxyethan-1,2-diyl group, bridging two nitrogen atoms, &bgr;) precondensates of the compound V and ϝ) reaction products or mixtures of the compound V with at least one alcohol, selected from C1-C6 alkanols, C2-C6 polyols and oligoalkylene glycols, and c) treating the material obtained in step b) at an elevated temperature.
摘要:
The invention relates to an agent for providing substrates based on cellulose and/or starch with water-repellent and simultaneously antifungal, antibacterial, insect-repellent and antialgal properties, which contains water and, as active substance, at least one linear, cyclic, branched or crosslinked co-oligomer or mixtures of co-oligomers from the series consisting of the alkyl-/aminoalkyl-/alkoxy- or hydroxy-siloxanes, the use of such agents and a special treatment process using such agents.
摘要:
The present invention relates to composite materials composed of lignocellulosic fibers, for example wood meal, and thermoplastic polymer. The inventive composite material has improved mechanical properties. According to the invention, it is envisaged that the lignocellulosic fibers, before mixing with the thermoplastic polymer, are treated with an aqueous mixture composed of organopolysiloxanes which contain aminoalkylalkoxysilanes.
摘要:
The invention relates to an agent for providing substrates based on cellulose and/or starch with water-repellent and simultaneously antifungal, antibacterial, insect-repellent and antialgal properties, which contains water and, as active substance, at least one linear, cyclic, branched or crosslinked co-oligomer or mixtures of co-oligomers from the series consisting of the alkyl-/aminoalkyl-/alkoxy- or hydroxy-siloxanes, the use of such agents and a special treatment process using such agents.
摘要:
The invention relates to an intermediate product for manufacturing polymers of lignin derivatives from the pulp industry, made by treating the lignin derivatives with phenol oxidizing enzymes in the presence of oxidation agents, characterized in that the lignin derivatives are (a) subjected to enzyme treatment for more than 3 hours in the presence of air, or (b) subjected to enzyme treatment for more than 10 minutes while air or oxygen is being passed through them, or (c) oxidized by treatment with chemical oxidation agents. The intermediate product is used in manufacturing polymers of lignin derivatives from the pulp industry, fiber-reinforced thermosetting composite materials from plant fibers, waterproof papers and cardboards, and thermosetting plastics from lignin derivatives.