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.

    Lignocellulosic materials with lignocellulosic fibers in the outer layers and expanded plastics particles present in the core

    公开(公告)号:NZ625930A

    公开(公告)日:2015-08-28

    申请号:NZ62593012

    申请日:2012-12-21

    Applicant: BASF SE

    Abstract: The disclosure relates to a lignocellulosic material 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, C) 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 lignocellulosic fibres, 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, wherein the expanded plastics particles B are present in nonuniform distribution in the core, therefore the weight ratio X of expanded plastics particles B to lignocellulose particles A in the outer regions of the core (“exterior”) is different from the weight ratio Y of expanded plastic particles B to lignocellulose particles A in the inner region of the core (”interior”).

    MULTI-LAYER MOLDED BODY CONTAINING LIGNOCELLULOSE AND HAVING LOW FORMALDEHYDE EMISSION

    公开(公告)号:RS53702B1

    公开(公告)日:2015-04-30

    申请号:RSP20140672

    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.

    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.

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