Light wood-based materials
    41.
    发明专利

    公开(公告)号:AU2007312220B2

    公开(公告)日:2012-05-03

    申请号:AU2007312220

    申请日:2007-10-18

    Applicant: BASF SE

    Abstract: The invention relates to a light material containing wood having an average density in the region of between 200 to 600 kg/m, and which comprises, in relation to the material containing wood, A) 30 to 95% by wt. of wood particles, B) 1 to 25% by wt. of a filling material having a bulk density in the region of between 10 to 150 kg/m, selected from the group consisting of foamable plastic particles and already foamed plastic particles, C) 0.1 to 50% by wt. of a binding agent, and optionally, D) additives. Said claimed material containing wood is characterised by the following relation between the d' values in accordance with the Rosin-Rammler-Sperling-Bennet distribution of the wood particles (A) and the particles of the filling material (B): d' of the particles (A) ≤2,5 Œ d' of the particles (B).

    LIGHT WOOD-BASED MATERIALS
    42.
    发明专利

    公开(公告)号:NZ576323A

    公开(公告)日:2012-03-30

    申请号:NZ57632307

    申请日:2007-10-18

    Applicant: BASF SE

    Abstract: Disclosed are light wood-based material products and which comprise: a) from 30 to 92.5% by weight, based on the wood-base material, of wood particles, the wood particles having a mean density of from 0.4 to 0.85 g/cm3; b) from 2.5 to 20% by weight, based on the wood-base material, of polystyrene and/or of styrene copolymer as a filler, the filler having a bulk density of from 10 to 100 kg/m3; and c) from 5 to 50% by weight, based on the wood-base material, of a binder; the mean density of the light wood-base material being less than or equal to 600 kg/m3. Further disclosed is a process for the production of a light wood-base material as defined above wherein said prefoamed polystyrene and/or styrene copolymers, binder and wood particles are mixed and subsequently moulded at elevated temperature and elevated pressure to give said wood-based material. Also disclosed is the use of the light wood-base materials as defined above for the production of pieces of furniture, of packaging materials, in house construction or in interior trim.

    ЛЕГКИЕ ДРЕВЕСНО-СТРУЖЕЧНЫЕ МАТЕРИАЛЫ

    公开(公告)号:EA013665B1

    公开(公告)日:2010-06-30

    申请号:EA200900550

    申请日:2007-10-18

    Applicant: BASF SE

    Abstract: Данноеизобретениеотноситсяк легкимдревесно-стружечнымматериалам, которыесодержатот 30 до 92,5 вес.% впересчетенадревесно-стружечныйматериалдревесныхчастиц, причемсредняяплотностьдревесныхчастицсоставляетот 0,4 до 0,85 г/см, от 2,5 до 20 вес.% впересчетенадревесно-стружечныйматериалполистиролаи/илисополимеризатастиролав качественаполнителя, причемнаполнительимеетсреднююнасыпнуюплотностьот 10 до 100 кг/м, иот 5 до 50 вес.% впересчетенадревесно-стружечныйматериалсвязующегосредства, причемсредняяплотностьлегкогодревесно-стружечногоматериаласоставляетменее 600 кг/м.

    moldagem, processo para a produção de uma moldagem, e, uso de uma moldagem

    公开(公告)号:BR112013005559A2

    公开(公告)日:2016-05-03

    申请号:BR112013005559

    申请日:2011-08-29

    Applicant: BASF SE

    Abstract: moldagem, processo para a produção de uma moldagem, e, uso de uma moldagem. uma moldagem contendo lignocelulose em multicamadas contendo: a) uma camada do meio ou uma pluralidade de camadas do meio contendo partículas contendo lignocelulose que é/são obtenível/obteníveis pelo uso de um aglutinante (a) e b) uma camada de revestimento ou uma pluralidade de camadas de revestimento contendo partículas de lignocelulose que é/são obtenível/obteníveis pelo uso de um aglutinante (b), o aglutinante sendo selecionado do grupo consistindo de (al) resinas de formaldeído e (a2) um isocianto orgânico tendo pelo menos dois grupos isocianato; o aglutinante sendo selecionado do grupo consistindo de (al) resinas de formaldeído e (a20) um isocianato orgânico tendo pelo menos dois grupos isocianato; o aglutinante (b) contendo os seguintes componentes: um componente aquoso (i) contendo: (i) um polímero a que é composto dos seguintes monômeros: a) de 70% a 100% em peso de pelo menos um ácido mono e/ou dicarboxílico etilenicamente insaturado (monômeros) a1) e b) de 0% a 30% em peso de pelo menos outro monômero etilenicamente insaturado que difere dos monômeros a1 (monômeros) a2) opcionalmente (ii) um agente reticulante de peso molecular baixo tendo pelo menos dois grupos funcionais que são selecionados do grupo consistindo de hidroxila, carboxila e seus derivados, amina primária, amina secundária e amina terciária, epóxido, aldeído, um isocianato orgênico tendo pelo menos dois grupos isocianato como componenete (ii) e, opcionalmente, um componente (iii), como uma dispersão aquosa, contendo: um ou mais polímero(s) m que é/são composto(s) dos seguintes: a) de 0% a 50% em peso de pelo menos um monômero etilenicamente insaturado que contém pelo menos um epóxido e/ou pelo menos um grupo hidróxi-alquila (monômero(s)m1) b) de 50% a 100% em peso de pelo menos um outro monômero etilenicamente insaturado que difer dos monômeros m1 (monômero(s)m2) e, opcionalmente, aditivos costumeiros como componente (iv), e o aglutinante (b) opcionalmente contém um agente capturador de formaldeído.

    Multi-layered lignocellulosic molded bodies with low formaldehyde emissions

    公开(公告)号:AU2009294678B2

    公开(公告)日:2015-04-09

    申请号:AU2009294678

    申请日:2009-09-09

    Applicant: BASF SE

    Abstract: Multi-layered lignocellulosic molded bodies comprising A) a middle layer or multiple middle layers containing lignocellulosic particles, said layer/layers obtained through the use of a binder (a) and B) a cover layer or multiple cover layers containing lignocellulosic particles, said layer or layers obtained through the use of a binder (b), wherein a binder (a) is selected from the group consisting of (a1) formaldehyde resins and (a2) an organic isocyanate with at least two isocyanate groups; wherein binder (b) contains the following components: an aqueous component (I) comprising (i) a polymer A constructed of the following monomers: a) 70 to 100 wt.-% of at least one ethylenically unsaturated mono and/or dicarboxylic acids (monomer(s) A1 ) and b) 0 to 30 wt.-% of at least one other ethylenically unsaturated monomers that differs from monomers A1 (monomer(s) A2) and optionally (ii) a low molecular weight cross-linking agent comprising at least two functional groups selected from the group of hydroxy, carboxylic acid and derivatives thereof, primary, secondary and tertiary amine, epoxy, aldehyde and optionally a component (II) as an aqueous dispersion comprising one or more polymer(s) M constructed from the following monomers: a) 0 to 50 wt.-% of at least one ethylenically unsaturated monomer containing an epoxide group and/or at least one hydroxyalkyl group (monomer(s) M1), and b) 50 to 100 wt.-% of at least one other ethylenically unsaturated monomer that differs from monomer M1 (monomer(s) M2) and optionally conventional additives as component (III) and wherein binder (b) contains formaldehyde traps in case binder (a) contains a formaldehyde resin.

    PROCESS FOR PREPARATION OF AMINOPLAST SOLUTIONS

    公开(公告)号:CA2858406A1

    公开(公告)日:2015-02-06

    申请号:CA2858406

    申请日:2014-08-05

    Applicant: BASF SE

    Abstract: The present invention relates to processes for discontinuously or continuously preparing aminoplast solutions by condensation of aminoplast formers with formaldehyde in a serial cascade of at least three stirred tank apparatus A, B, and C, which involves a) in apparatus A, reacting a mixture comprising formaldehyde and urea in a molar ratio of 2.3:1 to 2.9:1 and water at a pH of 6 to 8, set by means of a base, at a temperature of 80 to 85°C, where apparatus A consists of one or more, i.e., one to ten, preferably one to five, more preferably one to three, more particularly one or two stirred tanks in parallel or in series, very preferably of one stirred tank, b) in apparatus B, reacting said mixture at a molar ratio of formaldehyde to urea of 1.9:1 to 2.6:1, where apparatus B consists of one or more stirred tanks, wherein the molar ratio of formaldehyde to urea is lowered, optionally by further addition of urea, in stages to not less than 1.9:1, at a pH of 3.5 to 5.5, which is kept virtually constant, at a temperature of 100 to 105°C, and with a mean residence time of 10 to 90 minutes in the entire apparatus B, c) in apparatus C, at a temperature of 90 to 100°C, raising the pH to at least 5.9 and lowering the molar ratio of formaldehyde to urea to 1.7:1 to 1.4:1, where apparatus C consists of one or more stirred tanks, and d) by adding urea, at temperatures of 15 to 100°C, setting a final molar ratio of formaldehyde to urea of 0.7.1 to 1.28:1 and a pH of at least 7.

    MULTILAYERED LIGHTWEIGHT WOODBASE MATERIALS COMPOSED OF LIGNOCELLULOSIC MATERIALS HAVING A CORE AND TWO OUTER LAYERS WITH TREATED PULP, TREATED NATURAL FIBERS, SYNTHETIC FIBERS ORMIXTURES THEREOF IN THE CORE

    公开(公告)号:CA2875209A1

    公开(公告)日:2014-01-09

    申请号:CA2875209

    申请日:2013-06-25

    Applicant: BASF SE

    Abstract: The invention relates to materials containing lignocellulose that have a core and two covering layers, containing and preferably consisting of, in said core: A) 30 to 98 wt.% of lignocellulose particles, B) 0 to 25 wt.% of expanded plastic particles with a bulk density in the range of 10 to 150 kg/m3, C) 1 to 50 wt.% of one or more binders selected from the group consisting of aminoplast resin, phenol formaldehyde resin, and organic isocyanate with at least two isocyanate groups, and D) 0 to 10 wt.% of additives, and, in said covering layers: E) 70 to 99 wt.% of lignocellulose-containing particles, fibres, or mixtures thereof, F) 1 to 30 wt.% of one or more binders selected from the group consisting of aminoplast resin, phenol formaldehyde resin and organic isocyanate with at least two isocyanate groups, and G) 0 to 10 wt.% of additives; with 2 to 30% of the lignocellulose particles A) being replaced with treated cellulose materials, treated natural fibres, synthetic fibres or mixtures thereof. The invention also relates to the production and use of same.

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