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    METHOD FOR PRODUCING MULTI-LAYERED LIGNOCELLULOSE MATERIALS HAVING A CORE WITH SPECIAL PROPERTIES AND AT LEAST ONE UPPER AND ONE LOWER COVER LAYER
    2.
    发明申请
    METHOD FOR PRODUCING MULTI-LAYERED LIGNOCELLULOSE MATERIALS HAVING A CORE WITH SPECIAL PROPERTIES AND AT LEAST ONE UPPER AND ONE LOWER COVER LAYER 审中-公开

    公开(公告)号：US20170361489A1

    公开(公告)日：2017-12-21

    申请号：US15534223

    申请日：2015-12-07

    Applicant: BASF SE

    Inventor： Stephan WEINKÖTZ ,  Ingolf HENNIG ,  Matthias SCHADE ,  Detlef KRUG ,  Marco MÄBERT

    IPC: B27N3/02 ,  B27N3/00 ,  B27N3/24

    Abstract: The present invention relates to a process for the batchwise or continuous, preferably continuous production of multilayer lignocellulose materials with a core and with at least one upper and one lower outer layer, comprising the following steps: a) mixing of the components of the individual layers separately from one another, b) layer-by-layer scattering of the mixtures (for the core layer and for the outer layers) to give a mat, c) precompaction after the scattering of the individual layers, d) application of a high-frequency electrical field before, during and/or after the precompaction, and then e) hot pressing, where, in step a), for the core, the lignocellulose particles A) [component A)] are mixed with B) from 0 to 25% by weight of expanded plastics particles with bulk density in the range from 10 to 150 kg/m3 [component B)], C) from 1 to 15% by weight of one or more binders selected from the group consisting of aminoplastic resin and organic isocyanate having at least two isocyanate groups [component C)], D) from 0 to 3% by weight of ammonium salts [component D)], E) from 0 to 5% by weight of additives [component E)] and F) from 0.1 to 3% by weight of alkali metal salts or alkaline earth metal salts from the group of the sulfates, nitrates, halides and mixtures of these [component F)], and for the outer layers, the lignocellulose particles G) [component G)] are mixed with H) from 1 to 15% by weight of one or more binders selected from the group consisting of aminoplastic resin and organic isocyanate having at least two isocyanate groups [component H)], I) from 0 to 2% by weight of ammonium salts [component I)], J) from 0 to 5% by weight of additives [component J)] and K) from 0 to 2% by weight of alkali metal salts or alkaline earth metal salts from the group of the sulfates, nitrates, halides and mixtures of these [component K)], wherein, after step a), the mixture for the core comprises, based on the total dry weight of the mixture of components A) to F) from 3 to 15% by weight of water, the mixture(s) for the outer layers comprise(s), based on the total dry weight of the mixture(s) of components G) to K), from 5 to 20% by weight of water, and the following conditions are met: component F)≧1.1•component K) and [component F)+component D)]≧1.1•component K)+component I

    METHOD FOR PRODUCING LIGNOCELLULOSE MATERIALS
    3.
    发明申请
    METHOD FOR PRODUCING LIGNOCELLULOSE MATERIALS 审中-公开

    公开(公告)号：US20180071946A1

    公开(公告)日：2018-03-15

    申请号：US15562093

    申请日：2016-03-24

    Applicant: BASF SE

    Inventor： Jean-Pierre Berkan LINDNER ,  Lukas JANITZKI ,  Stephan WEINKÖTZ

    IPC: B27N3/00 ,  B27N3/10 ,  C08L97/02

    CPC classification number: B27N3/005 ,  B27N3/002 ,  B27N3/10 ,  C08L97/02

    Abstract: The present invention relates to a batchwise or continuous process for producing single-layer one multilayer lignocellulosic materials, comprising the process steps of (I) mixing the components of the individual layers, (II) scattering the mixture(s) produced in process step (I) to give a mat, (III) optionally precompacting the scattered mat and (IV) hot-pressing the optionally precompacted mat, by using, in process step (I), for the core of multilayer lignocellulosic materials or for single-layer lignocellulosic materials, a mixture (component A) comprising a1) 50% to 99% by weight, preferably 70% to 97% by weight, more preferably 80% to 95% by weight and especially 85% to 92% by weight of organic isocyanate having at least two isocyanate groups or mixtures thereof and a2) 1% to 50% by weight, preferably 3% to 30% by weight, more preferably 5% to 20% by weight and especially 8% to 15% by weight of organic carboxylic acid, carboxylic anhydride, carbonyl chloride or mixtures thereof and a3) 0% to 49% by weight, preferably 0% to 10% by weight and more preferably 0% to 5% by weight of auxiliaries or mixtures thereof.

    METHOD FOR PRODUCING SINGLE- OR MULTI-LAYER LIGNOCELLULOSE MATERIALS USING TRIALKYL PHOSPHATE
    6.
    发明申请
    METHOD FOR PRODUCING SINGLE- OR MULTI-LAYER LIGNOCELLULOSE MATERIALS USING TRIALKYL PHOSPHATE 审中-公开

    公开(公告)号：US20180071945A1

    公开(公告)日：2018-03-15

    申请号：US15562078

    申请日：2016-03-17

    Applicant: BASF SE

    Inventor： Stephan WEINKÖTZ

    IPC: B27N3/00 ,  C08L97/02 ,  C08K5/521 ,  C08L61/24 ,  C08L75/04

    CPC classification number: B27N3/002 ,  B27N3/00 ,  C08K5/521 ,  C08L61/24 ,  C08L75/04 ,  C08L97/02 ,  C08L61/20

    Abstract: The present invention relates to a process for the discontinuous or continuous, preferably continuous, production of single-layer or multilayer lignocellulosic materials, comprising the process steps of v) mixing the components of the individual layers, x) scattering the mixture(s) produced in process step i) to form a mat, xi) precompacting the scattered mat, and xii) hot pressing the precompacted mat, which comprises, in process step i) for the core of multilayer lignocellulosic materials or for single-layer lignocellulosic materials, mixing the lignocellulose particles (component LCP-1) with u) 0 to 25 wt % of expanded polymer particles having a bulk density in the range from 10 to 150 kg/m3 (component A), v) 0.05 to 1.39 wt % of binders selected from the group of organic isocyanates having at least two isocyanate groups (component B), w) 3 to 20 wt % of binders selected from the group of amino resins (component C), x) 0 to 5 wt % of curing agents (component D), y) 0 to 5 wt % of additives (component E), z) 0.01 to 10 wt % of trialkyl phosphate (TAP) (component F), and for the outer layers of multilayer lignocellulosic materials, mixing the lignocellulose particles (component LCP-2) with aa) 1 to 30 wt % of binders selected from the group of amino resins, phenolic resins, organic isocyanates having at least two isocyanate groups, protein-based binders, and other polymer-based binders (component G), bb) 0 to 5 wt % of curing agents (component H), cc) 0 to 5 wt % of additives (component I), and dd) 0 to 10 wt % of trialkyl phosphate (TAP) (component J).

    PROCESS OF PRODUCING A LIGNOCELLULOSIC COMPOSITE OR A PRODUCT THEREOF USING DIELECTRIC HEATING
    7.
    发明申请
    PROCESS OF PRODUCING A LIGNOCELLULOSIC COMPOSITE OR A PRODUCT THEREOF USING DIELECTRIC HEATING 有权

    公开(公告)号：US20250050533A1

    公开(公告)日：2025-02-13

    申请号：US18721219

    申请日：2022-12-14

    Applicant: BASF SE

    Inventor： Stephan WEINKÖTZ ,  Gereon Antonius SOMMER

    IPC: B27N3/18 ,  B27N3/00 ,  B27N3/02 ,  B27N3/24 ,  C08J5/18

    Abstract: Described is a process of producing a lignocellulosic composite or a product thereof, wherein the process comprises at least the steps of making a formed sheet by preparing a mixture comprising lignocellulosic particle and a heat-curable binder composition comprising as components for hardening the binder via reaction with each other at least one, two or more carbohydrate compounds and one or two compounds having two or more amino groups, comprising hexamethylenediamine and/or polylysine, and forming a sheet from said mixture, so that the formed sheet results, and of at least temporarily simultaneously compacting and dielectrically heating the formed sheet in a dielectric heating and pressing unit, so that the heat-curable binder composition hardens and the lignocellulosic composite results. Furthermore described is a lignocellulosic composite, which is preparable according to that process, a construction product comprising such lignocellulosic composite and the use of such lignocellulosic composite as a building element in a construction product.

    METHOD FOR THE PRODUCTION OF LIGNOCELLULOSE MATERIALS
    9.
    发明申请
    METHOD FOR THE PRODUCTION OF LIGNOCELLULOSE MATERIALS 审中-公开
    生产纤维素纤维素材料的方法

    公开(公告)号：US20170021525A1

    公开(公告)日：2017-01-26

    申请号：US15110528

    申请日：2015-01-09

    Applicant: BASF SE

    Inventor： Stephan WEINKÖTZ

    IPC: B27N3/08 ,  B27N3/04 ,  B27N3/00 ,  B27N3/02

    CPC classification number: B27N3/08 ,  B27N3/002 ,  B27N3/005 ,  B27N3/02 ,  B27N3/04 ,  B27N3/083 ,  B27N3/18

    Abstract: The present invention relates to a process for the production of lignocellulose materials via mixing A) of lignocellulose-containing particles or fibers, B) with organic isocyanate having at least two isocyanate groups or a mixture of these, and optionally with C) binders selected from the group of the phenol-formaldehyde resins, the aminoplastic resins, the protein-based binders, and other polymer-based binders, and mixtures of these, D) additives or a mixture of these, and E) plastics particles or a mixture of these, with the steps of: i.) scattering of the resultant mixture to give a mat, ii.) precompaction and heating of the mat during or after the precompaction process, and iii.) then hot pressing, wherein, in the step ii.), operations are carried out at elevated temperature during and/or after the precompaction process, and a value of at least 4 cm is achieved for the resultant mat in the push-off test.

    Abstract translation: 本发明涉及通过将A）含木素纤维素的颗粒或纤维与B）含有至少两种异氰酸酯基团的有机异氰酸酯或其混合物任选地与C）选自包括苯酚甲醛树脂的组合物， 氨基塑料树脂，蛋白质基粘合剂和其它基于聚合物的粘合剂或其混合物，D）添加剂或其混合物，E）塑料颗粒或其混合物。 在所述方法中，在步骤i）中，将所获得的混合物铺展以形成垫子，ii）在预压实过程中或在预压实过程之后，垫被预紧固和加热，以及iii）然后将垫子热压 通过在方法步骤ii。）期间施加增加的温度，在预压实过程中和/或之后，所获得的垫在推压测试中达到最小值4cm。

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