METHOD FOR WATERPROOFING LIGNOCELLULOSIC MATERIALS

    公开(公告)号:CA2606789A1

    公开(公告)日:2006-11-09

    申请号:CA2606789

    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.

    METHOD FOR IMPREGNATING LIGNOCELLULOSIC MATERIALS WITH EFFECT AGENTS

    公开(公告)号:CA2606781A1

    公开(公告)日:2006-11-09

    申请号:CA2606781

    申请日:2006-04-28

    Applicant: BASF AG

    Abstract: Method for impregnating lignocellulosic material with effect agents, comprises impregnating the lignocellulosic material with a fluid formation, which contains at least one effect agent in a dissolved or dispersed form; impregnating the material with a hardenable aqueous composition, which contains at least one cross-linkable compound; and treating the material obtained at an elevated temperature. Method for impregnating lignocellulosic material with effect agents, comprises impregnating the lignocellulosic material with a fluid formation, which contains at least one effect agent in a dissolved or dispersed form; impregnating the material with a hardenable aqueous composition, which contains at least one cross-linkable compound such as low-molecular weight compounds (V), having at least two N-bonded groups of formula (CH2OR) and/or one 1,2-bishydroxyethane-1,2-diyl group, bridging two nitrogen atoms, precondensates the compound (V), and reaction products or mixtures of the compound (V) with at least one alcohol such as 1-6C alkanols, 2-6C polyols and oligoalkylene glycols; and treating the material obtained at an elevated temperature. R : H or 1-4C alkyl. Independent claims are also included for: (1) a lignocellulosematerial, is obtained by the process; and (2) an aqueous composition comprising dissolved or dispersed form of effect agent and hardenable compound.

    Method for producing wood-base materials

    公开(公告)号:AU2006219949A1

    公开(公告)日:2006-09-08

    申请号:AU2006219949

    申请日:2006-03-03

    Applicant: BASF AG

    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

    公开(公告)号:NZ539623A

    公开(公告)日:2006-07-28

    申请号:NZ53962303

    申请日:2003-10-01

    Applicant: BASF AG

    Abstract: Disclosed is a process for the production of a wood body having high durability, dimensional stability and surface hardness, wherein 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 mixture thereof; and b) A catalyst from the group consisting of the metal or ammonium salts, organic or inorganic acids or mixtures thereof. Then hardened while maintaining humid conditions at elevated temperature.

    58.
    发明专利
    未知

    公开(公告)号:AT321635T

    公开(公告)日:2006-04-15

    申请号:AT03807829

    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.

    59.
    发明专利
    未知

    公开(公告)号:BR0314985A

    公开(公告)日:2005-08-09

    申请号:BR0314985

    申请日:2003-10-01

    Applicant: BASF AG

    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.

    60.
    发明专利
    未知

    公开(公告)号:NO20051653L

    公开(公告)日:2005-05-03

    申请号:NO20051653

    申请日:2005-04-04

    Applicant: BASF AG

    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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