PROCEDIMIENTO PARA MEJORAR LA DURABILIDAD, LA ESTABILIDAD DIMENSIONAL Y LA DUREZA SUPERFICIAL DE UN CUERPO DE MADERA.

    公开(公告)号:ES2263012T3

    公开(公告)日:2006-12-01

    申请号:ES03750667

    申请日:2003-10-01

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de un cuerpo de madera con durabilidad, estabilidad dimensional y dureza superficial mejoradas, en el que se impregna un cuerpo de madera, no tratado, con una solución acuosa de A) un agente de impregnación del grupo de la 1, 3-bis(hidroximetil)-4, 5-dihidroxiimidazolidinona-2, de la 1, 3-bis(hidroximetil)-4, 5-dihidroxiimidazolidinona-2 modificada con un alcohol con 1 a 5 átomos de carbono, con un poliol o con sus mezclas, de la 1, 3-dimetil-4, 5-dihidroxiimidazolidinona-2, de la dimetilolurea, de la bis(metoximetil)urea, de la tetrametilolacetilendiurea, de la 1, 3-bis(hidroximetil)imidazolidinona-2, de la metilolmetilurea o de sus mezclas, y B) un catalizador del grupo de las sales metálicas o de amonio, de los ácidos orgánicos o inorgánicos, o sus mezclas, caracterizado porque el cuerpo de madera se endurece, tras la impregnación, bajo mantenimiento de condiciones húmedas a temperatura elevada.

    METHOD FOR TREATING WOOD SURFACES
    75.
    发明专利

    公开(公告)号:CA2607737A1

    公开(公告)日:2006-11-09

    申请号:CA2607737

    申请日:2006-04-28

    Applicant: BASF AG

    Abstract: The method involves impregnating wood, 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 low-molecular weight compounds V, having at least two N-bonded groups of formula CH 2OH, where R = hydrogen or C1-C4 alkyl, or one 1,2-bishydroxyethan-1,2-diyl group, bridging two nitrogen atoms. The method then involves precondensates of the compound V and reaction products or mixtures of the compound V with at least one alcohol, selected from C1-C6 alkanols, C2-C6 polyols and oligoalkylene glycols. Then method involves treating the obtained material at an elevated temperature and, optionally, transforming said material into a wood material and 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. An independent claim is also included for the surface treatment.

    Method for waterproofing lignocellulosic materials

    公开(公告)号:AU2006243369A1

    公开(公告)日:2006-11-09

    申请号:AU2006243369

    申请日:2006-04-28

    Applicant: BASF AG

    Abstract: (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 CH 2 OH, wherein R=hydrogen or C 1 -C 4 alkyl, and/or one 1,2-bis-hydroxyethan-1,2-diyl group, bridging two nitrogen atoms, beta) precondensates of the compound V and & gammad;) reaction products or mixtures of the compound V with at least one alcohol, selected from C 1 -C 6 alkanols, C 2 -C 6 polyols and oligo-C 2 -C 4 -alkylene glycols.

    78.
    发明专利
    未知

    公开(公告)号:DE50302845D1

    公开(公告)日:2006-05-18

    申请号:DE50302845

    申请日:2003-10-01

    Abstract: A process for the production of a wood body having increased surface hardness, in which an untreated wood body is impregnated with an aqueous solution of A) an impregnating agent consisting of a 1,3-bis(hydroxymethyl)-4,5-dihydroxyimidazolidin-2-one modified with a C1-5-alcohol, a polyol or mixtures thereof, and B) a catalyst from the group consisting of ammonium or metal salts, organic or inorganic acids or mixtures thereof, dried and then hardened at elevated temperature is described.

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