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    MULTILAYER LIGNOCELLULOSE-CONTAINING MOLDINGS HAVING LOW FORMALDEHYDE EMISSION
    61.
    发明专利
    MULTILAYER LIGNOCELLULOSE-CONTAINING MOLDINGS HAVING LOW FORMALDEHYDE EMISSION 未知

    公开(公告)号：CA2810275A1

    公开(公告)日：2012-03-15

    申请号：CA2810275

    申请日：2011-08-29

    Applicant: BASF SE

    Inventor： KASMAYR DANIEL ,  ROSCHMANN KONRAD ,  SCHMIDT MICHAEL ,  FINKENAUER MICHAEL ,  KALBE MICHAEL ,  WEINKOTZ STEPHAN

    IPC: C08L97/02 ,  C08L33/02 ,  C09J133/02

    Abstract: A multilayer lignocellulose-containing molding comprising A) a middle layer or a plurality of middle layers comprising lignocellulose-containing particles which is/are obtainable by using a binder (a) and B) a covering layer or a plurality of covering layers comprising lignocellulose-containing particles which is/are obtainable by using a binder (b), the binder (a) being selected from the group consisting of (a1) formaldehyde resins and (a2) an organic isocyanate having at least two isocyanate groups; the binder (b) comprising the following components: an aqueous component (I) comprising (i) a polymer A which is composed of the following monomers: a) from 70 to 100% by weight of at least one ethylenically unsaturated mono- and/or dicarboxylic acid (monomer(s) A1) and b) from 0 to 30% by weight of at least one further ethylenically unsaturated monomer which differs from the monomers A1 (monomer(s) A2) optionally (ii) a low molecular weight crosslinking agent having at least two functional groups which are selected from the group consisting of hydroxyl, carboxyl and derivatives thereof, primary, secondary and tertiary amine, epoxy, aldehyde, an organic isocyanate having at least two isocyanate groups as component (II) and, optionally, a component (III), as an aqueous dispersion, comprising one or more polymer(s) M which is/are composed of the following monomers: a) from 0 to 50% by weight of at least one ethylenically unsaturated monomer which comprises at least one epoxide and/or at least one hydroxyalkyl group (monomer(s) M1) and b) from 50 to 100% by weight of at least one further ethylenically unsaturated monomer which differs from the monomers M1 (monomer(s) M2) and, optionally, customary additives as component (IV), and the binder (b) optionally comprises a formaldehyde scavenger.

    LIGHT WOOD-BASED MATERIALS
    62.
    发明专利
    LIGHT WOOD-BASED MATERIALS 未知

    公开(公告)号：NZ576290A

    公开(公告)日：2012-02-24

    申请号：NZ57629007

    申请日：2007-10-18

    Applicant: BASF SE

    Inventor： SCHMIDT MICHAEL ,  FINKENAUER MICHAEL ,  SCHERR GUNTER ,  BRAUN FRANK ,  WEINKOTZ STEPHAN ,  AUENMULLER JURGEN VON ,  RICHTER OLIVER ,  PERETOLCHIN MAXIM

    IPC: B27N3/00

    Abstract: Disclosed is a light wood-containing material having an average density in the range from 200 to 600 kg/m3, comprising, based in each case on the wood-containing material: A) from 30 to 95% by weight of wood particles; B) from 1 to 25% by weight of a filler having a bulk density in the range from 10 to 150 kg/m3, selected from the group consisting of foamable plastic particles and already foamed plastic particles; C) from 0.1 to 50% by weight of a binder and, if appropriate, D) additives, the following relationship being true for the d' values according to Rosin-Rammler-Sperling-Bennet of the wood particles A) and of the particles of the filler B): d' of the particles A) is less than or equal to 2.5 x d' of the particles B).

    Multi-layered lignocellulosic molded bodies with low formaldehyde emissions
    65.
    发明专利
    Multi-layered lignocellulosic molded bodies with low formaldehyde emissions 未知

    公开(公告)号：AU2009294678A1

    公开(公告)日：2010-03-25

    申请号：AU2009294678

    申请日：2009-09-09

    Applicant: BASF SE

    Inventor： KASMAYR DANIEL ,  WEINKOTZ STEPHAN ,  BEIL CHRISTIAN ,  SCHMIDT MICHAEL ,  FINKENAUER MICHAEL

    IPC: B32B21/08 ,  B27N1/00 ,  B27N3/02

    Abstract: The multi-layered lignocellulosic molded bodies comprise middle layer containing lignocellulosic particles and obtained through the use of binder (a), and two cover layers containing lignocellulosic particles and obtained through the use of binder (b). The binder (a) is formaldehyde resins (a1) and an organic isocyanate (a2) with two isocyanate groups. The binder (b) contains aqueous component (I) comprising polymer (A) constructed of monomers (A1) having 70-100 wt.% of ethylenically unsaturated mono- and/or dicarboxylic acids and 0-30 wt.% of other ethylenically unsaturated monomers (A2). The multi-layered lignocellulosic molded bodies comprise a middle layer containing lignocellulosic particles and obtained through the use of a binder (a), and two cover layers containing lignocellulosic particles and obtained through the use of a binder (b). The binder (a) is formaldehyde resins (a1) and an organic isocyanate (a2) with two isocyanate groups. The binder (b) contains an aqueous component (I) comprising a polymer (A) constructed of monomers (A1) having 70-100 wt.% of ethylenically unsaturated mono- and/or dicarboxylic acids and 0-30 wt.% of other ethylenically unsaturated monomers (A2) that differ from the monomers (A1), and optionally a low molecular weight cross-linking agent comprising two functional groups of hydroxy, carboxylic acid and its derivatives, primary, secondary and tertiary amine, epoxy and aldehyde, and optionally a component (II) as an aqueous dispersion comprising polymers (M) constructed from the monomers having 0-50 wt.% of ethylenically unsaturated monomer (M1) containing an epoxide group and/or hydroxyalkyl group, and 50-100 wt.% of other ethylenically unsaturated monomer (M2) that differs from the first monomer (M1), and optionally conventional additives as component (III), where the binder (b) contains formaldehyde traps and formaldehyde resin. The binder (b) consists of low molecular cross-linker as the component (II). The binder (a) consists of 70-99.9 wt.% of component (a1) and 0.1-30 wt.% of component (a2) related to the total (a1) and (a2) of the pure undiluted substances. The molded bodies are formed in the form of plate. An independent claim is included for a method for the production of multi-layered lignocellulosic molded bodies.

    LIGNOCELLULOSE MATERIALS COMPRISING EXPANDED PLASTIC PARTICLES NON-HOMOGENEOUSLY DISTRIBUTED IN THE CORE
    70.
    发明专利
    LIGNOCELLULOSE MATERIALS COMPRISING EXPANDED PLASTIC PARTICLES NON-HOMOGENEOUSLY DISTRIBUTED IN THE CORE 未知

    公开(公告)号：ZA201405334B

    公开(公告)日：2017-11-29

    申请号：ZA201405334

    申请日：2014-07-21

    Applicant: BASF SE

    Inventor： WEINKÖTZ STEPHAN ,  SCHMIDT MICHAEL ,  LUNKWITZ RALPH ,  FINKENAUER MICHAEL

    Abstract: Materials which contain lignocellulose, have a core and two covering layers, and contain, in the core, A) 30 to 98 wt. % lignocellulose particles, B) 1 to 25 wt. % expanded plastic particles having a bulk density in the range of 10 to 150 kg/m3, C) 1 to 50 wt. % of one or more binding agents selected from the group consisting of amino resin, phenolic resin and organic isocyanate comprising at least two isocyanate groups, and D) 0 to 10 wt. % additives, and, in the covering layers, E) 70 to 99 wt. % lignocellulose particles, F) 1 to 30 wt. % of one or more binding agents selected from the group consisting of amino resin, phenol formaldehyde resin and organic isocyanate comprising at least two isocyanate groups, and G) 0 to 10 wt. % additives. The lignocellulose particles of the covering layers E contain at least 25 wt. % lignocellulose-containing chips, and the expanded plastic particles B are non-homogeneously distributed in the core.

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