LIGNOCELLULOSIC MATERIALS WITH LIGNOCELLULOSIC FIBERS IN THE OUTER LAYERS AND EXPANDED PLASTICS PARTICLES PRESENT IN THE CORE, AND PROCESS AND USE THEREOF

    公开(公告)号:MY168545A

    公开(公告)日:2018-11-12

    申请号:MYPI2014001844

    申请日:2012-12-21

    Applicant: BASF SE

    Abstract: The present invention relates to lignocellulosic materials having a core and two outer layers, comprising in the core (A) 30% to 98% by weight of lignocellulose particles; (B) 1 % to 25% by weight of expanded plastics particles having a bulk density in the range from 10 to 150 kg/m3, (D) 1 % to 50% by weight of one or more binders selected from the group consisting of phenoplast resin, aminoplast resin, and organic isocyanate having at least two isocyanate groups, and (D) 0% to 30% by weight of additives and in the outer layers, (E) 70% to 99% by weight of lignocellulose fibers, (F) 1 % to 30% by weight of one or more binders selected from the group consisting of phenoplast resin, aminoplast resin, and organic isocyanate having at least two isocyanate groups, and G) 0% to 30% by weight of additives. (No Suitable Figure)

    Multi-layer molded body containing lignocellulose and having low formaldehyde emission

    公开(公告)号:AU2011343336A1

    公开(公告)日:2013-07-11

    申请号:AU2011343336

    申请日:2011-12-14

    Applicant: BASF SE

    Abstract: The invention relates to a multi-layer molded body that contains lignocellulose, comprising A) a middle layer or a plurality of middle layers, which contain(s) particles that contain lignocellulose and which can be obtained by using a binder (a), and B) an outer layer or a plurality of outer layers, which contain(s) particles that contain lignocellulose and which can be obtained by using a binder (b), wherein the binder (a) is selected from the group comprising (a1) formaldehyde resins and (a2) an organic isocyanate having at least two isocyanate groups; wherein the binder (b) contains the following components: an aqueous component (I) containing (i) a polymer A, which is constructed from the following monomers: a) 70 to 100 wt % of at least one ethylenically unsaturated monocarboxylic acid and/or dicarboxylic acid (monomer(s) A1) and b) 0 to 30 wt % of at least one additional ethylenically unsaturated monomer that differs from the monomers A1 (monomer(s) A2), possibly (ii) a low-molecular-weight cross-linking agent having at least two functional groups, which are selected from the group comprising hydroxy, carboxylic acid and derivatives thereof, primary, secondary, and tertiary amine, epoxy, and aldehyde, an organic isocyanate having at least two isocyanate groups as component (II), and possibly a component (III) as an aqueous dispersion containing one or more polymers M, which are constructed from the following monomers: a) 0 to 50 wt % of at least one ethylenically unsaturated monomer that contains at least one epoxide group and/or at least one hydroxyalkyl group (monomer(s) M1), and b) 50 to 100 wt % of at least one additional ethylenically unsaturated monomer that differs from the monomers M1 (monomer(s) M2), and possibly common additives as component (IV), and wherein at least one middle layer (A) contains expanded plastic particles and possibly at least one outer layer B) contains expanded plastic particles, and the binder (b) possibly contains a formaldehyde scavenger.

    LIGHT LIGNOCELLULOSIC MATERIALS HAVING GOOD MECHANICAL PROPERTIES

    公开(公告)号:NZ598089A

    公开(公告)日:2013-03-28

    申请号:NZ59808910

    申请日:2010-08-02

    Applicant: BASF SE

    Abstract: Disclosed herein is a process for the production of a light lignocellulose-containing substance having an average density in the range from 200 to 600 kg/m3, in which, in each case based on the lignocellulose-containing substance: from 30 to 95% by weight of lignocellulose particles; from 1 to 25% by weight of expanded plastics particles having a bulk density in the range from 10 to 100 kg/m3, preferably selected from the group consisting of styrene homopolymer and styrene copolymer; from 3 to 50% by weight of a binder selected from the group consisting of aminoplast resin, phenol-formaldehyde resin and organic isocyanate having at least two isocyanate groups and, if appropriate, additives are mixed and then pressed at elevated temperature and under elevated pressure, wherein the expanded plastics particles are obtained from expandable plastics particles with a content of blowing agent in the range from 0.01 to 4% by weight, based on the expandable plastics particles.

    MULTI-LAYERED LIGNOCELLULOSIC MOLDED BODIES WITH LOW FORMALDEHYDE EMISSIONS

    公开(公告)号:NZ591751A

    公开(公告)日:2012-09-28

    申请号:NZ59175109

    申请日:2009-09-09

    Applicant: BASF SE

    Abstract: Disclosed herein is a multilayer lignocellulose-containing molding comprising: a middle layer or a plurality of middle layers comprising lignocellulose containing particles obtained by using a binder (a) and a covering layer or a plurality of covering layers comprising lignocellulose containing particles obtained by using a binder (b), the binder (a) being selected from the group consisting of (a1) formaldehyde resins and/or (a2) an organic isocyanate having at least two isocyanate groups; the binder (b) comprising the following components: an aqueous component (I) comprising 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) and, optionally, a low molecular weight crosslinker 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 and aldehyde and, optionally, a component (II) as an aqueous dispersion, comprising one or more polymer(s) M which is composed of the following monomers: 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 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 (III), and, where the binder (a) comprises a formaldehyde resin, the binder (b) comprising formaldehyde scavengers.

    Light wood-based materials having good mechanical properties and low formaldehyde emission

    公开(公告)号:AU2008300627A1

    公开(公告)日:2009-03-26

    申请号:AU2008300627

    申请日:2008-09-16

    Applicant: BASF SE

    Abstract: Light, wood-containing material with an average density of 200-600 kg/m 3>, comprises: (a) 30-95 wt.% of wood particles; (b) 1-15 wt.% of filler having a bulk density of 10-100 kg/m 3>comprising foamable plastic particles and foamed plastic particles; (c) 3-50 wt.% of a binder comprising an aminoplastic resin and organic isocyanate having at least two isocyanate groups; and optionally (d) additives. Independent claims are included for: (1) a multilayered wood material comprising at least three layers, where the middle layer or at least a part of the middle layer contains the light, wood-containing material and the outer layer contains no fillers; (2) the preparation of light, wood-containing material, comprising mixing the components of (a) to (d) and subsequently pressing under increased temperature and pressure; and (3) the preparation of the multilayered wood material, comprising coating the components of (a) to (d) for a single layer one upon the other and pressing under increased temperature and pressure.

    METHOD FOR THE PRODUCTION OF LIGNOCELLULOSE MATERIALS

    公开(公告)号:CA2936607C

    公开(公告)日:2023-01-03

    申请号:CA2936607

    申请日:2015-01-09

    Applicant: BASF SE

    Inventor: WEINKOTZ STEPHAN

    Abstract: The invention relates to a method for producing lignocellulose materials by mixing A) lignocellulose-containing particles or fibers with B) organic isocyanate comprising at least two isocyanate groups or mixtures thereof, optionally with C) binders selected from among the group comprising phenol formaldehyde resins, aminoplast resins, protein-based binders, and other polymer-based binders or mixtures thereof, D) additives or mixtures thereof, E) plastic particles or mixtures thereof. In said method, in step i.) the obtained mixture is spread to form a mat, ii.) the mat is pre-compact and heated during or following the pre-compacting process, and iii.) then the mat is hot-pressed by applying an increased temperature in method step ii.) during and/or following the pre-compacting process, the obtained mat reaching a minimum value of 4 cm in the push-off test.

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