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    71.
    发明专利
    未知

    公开(公告)号：DE102005047362A8

    公开(公告)日：2007-08-16

    申请号：DE102005047362

    申请日：2005-10-04

    Applicant: BASF AG ,  GEORG AUGUST UNI

    Inventor： KINGMA AREND JOUKE ,  WEINGART FRANZ ,  SCHAFFERT STEFAN ,  MILITZ HOLGER ,  KRAUSE ANDREAS ,  WEPNER FALKO

    IPC: C08H8/00 ,  B27K3/34 ,  C08L97/02 ,  C07G1/00

    Abstract: The invention relates to a method for producing modified lignocellulosic materials. Said method consists of the following steps a) the lignocellulosic material is impregnated with an aqueous composition which contains i) at least one cross-linkable nitrogen compound and ii) at least one substance which catalyses the cross-linking, b) the impregnated lignocellulosic materials are treated at higher temperatures in order to remove the water and to cross-link the cross-linkable nitrogen compound. In step b) the impregnated lignocellulosic material is treated with overheated steam. The invention also relates to lignocellulosic materials which are obtained according to said method.

    PROCEDIMIENTO PARA MEJORAR LA DURABILIDAD, LA ESTABILIDAD DIMENSIONAL Y LA DUREZA SUPERFICIAL DE UN CUERPO DE MADERA.
    74.
    发明专利
    PROCEDIMIENTO PARA MEJORAR LA DURABILIDAD, LA ESTABILIDAD DIMENSIONAL Y LA DUREZA SUPERFICIAL DE UN CUERPO DE MADERA. 未知

    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

    Inventor： KRAUSE ANDREAS ,  MILITZ HOLGER

    IPC: B27K3/08 ,  B27K3/15 ,  B27K5/06 ,  B27K3/34 ,  B27K3/42 ,  B27K3/52

    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
    76.
    发明专利
    METHOD FOR TREATING WOOD SURFACES 未知

    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

    Inventor： KINGMA AREND JOUKE ,  WAGNER EVA ,  MAI CARSTEN ,  GRAF KARL ,  MENZEL KLAUS ,  XIE YANJUN ,  KRAUSE ANDREAS ,  MILITZ HOLGER

    IPC: B27K3/15 ,  B05D7/08 ,  B27K5/00 ,  B27N7/00

    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
    77.
    发明专利
    Method for waterproofing lignocellulosic materials 未知

    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

    Inventor： KRAUSE ANDREAS ,  MILITZ HOLGER ,  FECHTENKOTTER ANDREAS ,  KINGMA AREND JOUKE ,  MAI CARSTEN ,  KASEL WOLFGANG

    IPC: B27K5/00 ,  B27K3/15 ,  B27N7/00

    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.

    79.
    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

    Applicant: BASF AG ,  KRAUSE ANDREAS ,  MILITZ HOLGER

    Inventor： KRAUSE ANDREAS ,  MILITZ HOLGER

    IPC: B27K3/08 ,  B27K3/15 ,  B27K3/34 ,  B27K3/42 ,  B27K3/52 ,  B27K5/06

    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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