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    TRATAMIENTO DE MADERA TERMO-MODIFICADA.
    4.
    发明专利
    TRATAMIENTO DE MADERA TERMO-MODIFICADA. 未知

    公开(公告)号：ES2358800T3

    公开(公告)日：2011-05-13

    申请号：ES04742205

    申请日：2004-07-23

    Applicant: STORA ENSO OYJ

    Inventor： LAITINEN RISTO ,  KANKKUNEN MIKA ,  LINDELL HENRY ,  LEHTOVUORI JUKKA ,  SILEN JOUKO ,  PAENKAELAEINEN SAKU

    IPC: B27K3/36 ,  B27K20060101 ,  B27K5/00

    Abstract: Un método para tratar madera térmicamente modificada que tiene el número de radicales libres aumentado hasta por lo menos 1,5 veces por la modificación comparado con madera sin tratar correspondiente, caracterizado porque una pieza de madera térmicamente modificada se vuelve repelente al agua impregnándola con un agente de encolado hidrofóbico, que es reactivo con celulosa, siendo el agente de encolado un dímero de alquil ceteno (AKD) con una cadena de alquilo C16-C22 lineal y/o un anhídrido de ácido alquenil succínico (ASA) con una cadena de alquenilo C16-C22, y por lo menos cuando el agente de encolado es ASA la madera tratada se seca y luego calienta hasta una temperatura de 100-140ºC durante 15-60 minutos.

    6.
    发明专利
    未知

    公开(公告)号：FI20070487A

    公开(公告)日：2008-12-20

    申请号：FI20070487

    申请日：2007-06-19

    Applicant: STORA ENSO OYJ

    Inventor： PYNNOENEN JANNE ,  KANKKUNEN MIKA ,  PAENKAELAEINEN SAKU ,  SILEN JOUKO ,  LAITINEN RISTO ,  LINDELL HENRY

    IPC: B27K20060101

    Abstract: The invention relates to a method for treating thermally modified wood, to thermally modified wood treated according to the method and the use of resins as the protective agent for thermally modified wood. According to the invention, on the wood there is applied a liquid resin-based protective agent, which is dried and/or hardened, so that there is obtained a transparent protective surface for protecting the wood against the effects of weather. The protective agent can be phenol formaldehyde resin, melamine formaldehyde resin or urea formaldehyde resin, which is applied on the wood as an aqueous solution and dried by means of heat. Resin decreases the absorption of water in the wood and reduces the cracking of wood. Particularly phenol formaldehyde resin also prevents the wood from turning gray in the open air.

    7.
    发明专利
    未知

    公开(公告)号：FI20070487A0

    公开(公告)日：2007-06-19

    申请号：FI20070487

    申请日：2007-06-19

    Applicant: STORA ENSO OYJ

    Inventor： PYNNOENEN JANNE ,  KANKKUNEN MIKA ,  PAENKAELAEINEN SAKU ,  SILEN JOUKO ,  LAITINEN RISTO ,  LINDELL HENRY

    IPC: B27K20060101

    Abstract: The invention relates to a method for treating thermally modified wood, to thermally modified wood treated according to the method and the use of resins as the protective agent for thermally modified wood. According to the invention, on the wood there is applied a liquid resin-based protective agent, which is dried and/or hardened, so that there is obtained a transparent protective surface for protecting the wood against the effects of weather. The protective agent can be phenol formaldehyde resin, melamine formaldehyde resin or urea formaldehyde resin, which is applied on the wood as an aqueous solution and dried by means of heat. Resin decreases the absorption of water in the wood and reduces the cracking of wood. Particularly phenol formaldehyde resin also prevents the wood from turning gray in the open air.

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