中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

79 records (took 0.091 seconds)

    14.
    发明专利
    未知

    公开(公告)号：DE102005010041A1

    公开(公告)日：2006-09-07

    申请号：DE102005010041

    申请日：2005-03-04

    Applicant: BASF AG

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

    IPC: B27K3/36 ,  B27D1/00 ,  B27M3/04

    Abstract: The present invention relates to a process for the production of wood-base materials which have at least one thin veneer layer adhesively bonded over the surface to a substrate or to further veneer layers, which process comprises the following steps: i. impregnation of a veneer with an aqueous curable composition which comprises a) at least one curable urea compound selected from urea compounds H which have at least one N-bonded group of the formula CH2OR, where R is hydrogen or C1-C4-alkyl, and/or a 1,2-bishydroxyethane-1,2-diyl group bridging the two nitrogen atoms of the urea, precondensates of the urea compound H, and reaction products or mixtures of the urea compound H with at least one alcohol which is selected from C1-C6-alkanols, C2-C6-polyols and oligoethylene glycols, and b) at least one catalyst K effecting crosslinking of the urea compound; ii) gluing of the impregnated veneer and/or the substrate with a glue composition and iii) processing of the glued veneer to give a wood-base material at elevated temperature with curing of the crosslinkable urea compound, the impregnated veneer comprising the crosslinkable urea compound in substantially uncrosslinked form before the gluing in step ii).

    METHOD FOR IMPROVING THE DURABILITY, DIMENSIONAL STABILITY AND SURFACE HARDNESS OF A WOODEN BODY
    16.
    发明专利
    METHOD FOR IMPROVING THE DURABILITY, DIMENSIONAL STABILITY AND SURFACE HARDNESS OF A WOODEN BODY 未知

    公开(公告)号：AU2003268897A1

    公开(公告)日：2004-05-04

    申请号：AU2003268897

    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: A process for improving the durability, dimensional stability and surface hardness of a wood body is described, in which an untreated wood body is impregnated with an aqueous solution of A) an impregnating agent from the group consisting of 1,3-bis(hydroxymethyl)-4,5-dihydroxyimidazolidin-2-one, 1,3-bis(hydroxymethyl)-4,5-dihydroxyimidazolidin-2-one modified with a C1-5-alcohol, a polyol or mixtures thereof, 1,3-dimethyl-4,5-dihydroxyimidazolidin-2-one, dimethylolurea, bis(methoxymethyl)urea, tetramethylolacetylenediurea, 1,3-bis(hydroxymethyl)imidazolidin-2-one, methylolmethylurea or mixtures thereof and B) a catalyst from the group consisting of metal or ammonium salts, organic or inorganic acids and mixtures thereof, and wood and impregnating agent are then caused to react while maintaining humid conditions at elevated temperature.

    METHOD FOR TREATING WOOD SURFACES
    17.
    发明专利
    METHOD FOR TREATING WOOD SURFACES 未知

    公开(公告)号：CA2607737C

    公开(公告)日：2015-04-07

    申请号：CA2607737

    申请日：2006-04-28

    Applicant: BASF AG

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

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

    Abstract: 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 .alpha.) 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, .beta.) precondensates of the compound V and .gamma.) 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.

    METODO PARA IMPERMEABILIZAR MATERIALES LIGNOCELULOSICOS.
    18.
    发明专利
    METODO PARA IMPERMEABILIZAR MATERIALES LIGNOCELULOSICOS. 未知

    公开(公告)号：MX2007013706A

    公开(公告)日：2008-01-28

    申请号：MX2007013706

    申请日：2006-04-28

    Applicant: BASF AG

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

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

    Abstract: La invencion se refiere a un metodo para impermeabilizar materiales lignocelulosicos mediante la impresion del material lignocelulosico con un agente impermeabilizante, por lo que el material lignocelulosico es impregnado con una composicion acuosa endurecible antes o durante la impermeabilizacion, dicha composicion contiene por lo menos un compuesto reticulable, seleccionado entre a) compuestos V de bajo peso molecular que tienen por lo menos dos grupos unidos con N de formula CH2OH en donde R = hidrogeno o alquilo C1-C4, y/o un grupo 1,2-bishidroxietan-1,2-diilo, puenteando dos atomos de nitrogeno, ??) precondensados del compuesto V y Y) productos de reaccion o mezclas del compuesto V con por lo menos un alcohol, seleccionado entre alcanoles C1-C6, polioles C2-C6 y oligoalquilen-C2-C4-glicol es.

    19.
    发明专利
    未知

    公开(公告)号：NO20075192L

    公开(公告)日：2008-01-02

    申请号：NO20075192

    申请日：2007-10-11

    Applicant: BASF AG

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

    IPC: B27K3/15

    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.

Patent Agency Ranking