PROCESS FOR PROTECTING WOOD WITH A PRESERVATIVE CONTAINING O-BORIC ACID/PROPYLENE OXIDE ADDUCT

    公开(公告)号:CA1061659A

    公开(公告)日:1979-09-04

    申请号:CA255932

    申请日:1976-06-29

    Applicant: BASF AG

    Abstract: A process for protecting wood against ligniperdous insects, termites, ligniperdous fungi, soft rot and mold fungi, which comprises bringing into contact with the wood an effective amount of wood preservative compounds effective against ligniperdous insects, termites, ligniperdous fungi, soft rot and mold fungi, said compounds being o-boric acid/propylene oxide adducts having a molar ratio of said acid to said propylene oxide in the range of 1:1 to 1:5, respectively, said adducts being formed by reacting said o-boric acid and propylene oxide either in an aprotic solvent at 100.degree.C to 160.degree.C in the absence of a catalyst or at 70.degree.C to 120.degree.C in a closed vessel in an aprotic solvent and in the presence of a catalytic amount of a base or a Lewis acid at a pressure of said propylene oxide of 4 to 9 bars, and thereafter distilling off said solvent.

    26.
    发明专利
    未知

    公开(公告)号:BR0315133A

    公开(公告)日:2005-08-16

    申请号:BR0315133

    申请日:2003-10-06

    Applicant: BASF AG

    Abstract: A process for producing colored oriented strand board, which comprises the wood strands which serve as a base material for oriented strand board being contacted, before or after-drying, with a liquid colorant preparation, then conventionally resinated, and formed into three-layered mats and these three-layered mats being hot-pressed into board having a center layer and two outside layers.

    27.
    发明专利
    未知

    公开(公告)号:DE10248083A1

    公开(公告)日:2004-04-29

    申请号:DE10248083

    申请日:2002-10-15

    Applicant: BASF AG

    Abstract: A process for producing colored oriented strand board, which comprises the wood strands which serve as a base material for oriented strand board being contacted, before or after-drying, with a liquid colorant preparation, then conventionally resinated, and formed into three-layered mats and these three-layered mats being hot-pressed into board having a center layer and two outside layers.

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