Dynamically evacuable apparatuses comprising organic aerogels or xerogels

    公开(公告)号:AU2012234374A1

    公开(公告)日:2013-10-17

    申请号:AU2012234374

    申请日:2012-03-26

    Applicant: BASF SE

    Abstract: The present invention relates to a dynamically evacuable, electrically operated apparatus comprising a contiguously evacuable region and a working region whose temperature can be controlled and which is thermally insulated by the contiguously evacuable region from the ambient temperature, and also a means for actively maintaining a vacuum so that the pressure in the contiguously evacuable region of the apparatus is constant over time within a prescribed pressure range, where the contiguously evacuable region makes up at least 20% by volume of the total volume occupied by a porous and/or cellular insulation material in the apparatus and the contiguously evacuable region comprises at least one organic aerogel and/or organic xerogel.

    Dynamically evacuable apparatuses comprising organic aerogels or xerogels

    公开(公告)号:AU2012234374B2

    公开(公告)日:2016-10-20

    申请号:AU2012234374

    申请日:2012-03-26

    Applicant: BASF SE

    Abstract: The present invention relates to a dynamically evacuable, electrically operated apparatus comprising a contiguously evacuable region and a working region whose temperature can be controlled and which is thermally insulated by the contiguously evacuable region from the ambient temperature, and also a means for actively maintaining a vacuum so that the pressure in the contiguously evacuable region of the apparatus is constant over time within a prescribed pressure range, where the contiguously evacuable region makes up at least 20% by volume of the total volume occupied by a porous and/or cellular insulation material in the apparatus and the contiguously evacuable region comprises at least one organic aerogel and/or organic xerogel.

    HFO-/water-blown rigid-foam systems

    公开(公告)号:AU2012292108B2

    公开(公告)日:2015-11-26

    申请号:AU2012292108

    申请日:2012-07-30

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing polyurethane rigid foams by reacting a) at least one organic polyisocyanate with b) at least one polyol component in the presence of a blowing-agent mixture containing water and halogenated alkenes, wherein the amount of water is at least 1.40 mol/kg polyol component b) and the amount of halogenated alkene is at most 2.00 mol/kg polyol component b), and to the use of such a blowing-agent mixture to produce corresponding polyurethane rigid foams and to increase the adhesion and to reduce the thermal conductivity of corresponding polyurethane rigid foams. The invention further relates to a polyurethane rigid foam that can be produced by the method according to the invention.

    Fixing of vacuum insulation panels in cooling apparatuses

    公开(公告)号:AU2011304551B2

    公开(公告)日:2015-10-01

    申请号:AU2011304551

    申请日:2011-08-31

    Applicant: BASF SE

    Abstract: Use of a polyurethane (PU) foam reaction system comprising a) organic and/or modified organic polyisocyanates together with b) at least one relatively high molecular weight compound having at least two hydrogen atoms which are reactive toward isocyanate groups and optionally c) low molecular weight chain extenders and/or crosslinkers in the presence of d) blowing agents, e) catalysts, f) foam stabilizers and optionally g) further auxiliaries and/or additives, wherein the components a) to g) are selected such that a closed-cell polyurethane foam having a free-foamed bulk density of from 50 to 1100 g/l and a compressive strength of ≥ 15 kPa is obtained and rigid integral foams are excluded, for the fixing of vacuum insulation panels (VIPs) over an area of the inside of an outer wall of a cooling apparatus and/or of the outside of a wall of the inner container of a cooling apparatus. In addition, a process for producing composites comprising a wall of a cooling apparatus, a PU foam layer derived from the abovementioned PU foam reaction system and at least one VIP is described.

    HFO-/water-blown rigid-foam systems

    公开(公告)号:AU2012292108A1

    公开(公告)日:2014-02-20

    申请号:AU2012292108

    申请日:2012-07-30

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing polyurethane rigid foams by reacting a) at least one organic polyisocyanate with b) at least one polyol component in the presence of a blowing-agent mixture containing water and halogenated alkenes, wherein the amount of water is at least 1.40 mol/kg polyol component b) and the amount of halogenated alkene is at most 2.00 mol/kg polyol component b), and to the use of such a blowing-agent mixture to produce corresponding polyurethane rigid foams and to increase the adhesion and to reduce the thermal conductivity of corresponding polyurethane rigid foams. The invention further relates to a polyurethane rigid foam that can be produced by the method according to the invention.

    Fixing of vacuum insulation panels in cooling apparatuses

    公开(公告)号:AU2011304551A1

    公开(公告)日:2013-04-04

    申请号:AU2011304551

    申请日:2011-08-31

    Applicant: BASF SE

    Abstract: Use of a polyurethane (PU) foam reaction system comprising a) organic and/or modified organic polyisocyanates together with b) at least one relatively high molecular weight compound having at least two hydrogen atoms which are reactive toward isocyanate groups and optionally c) low molecular weight chain extenders and/or crosslinkers in the presence of d) blowing agents, e) catalysts, f) foam stabilizers and optionally g) further auxiliaries and/or additives, wherein the components a) to g) are selected such that a closed-cell polyurethane foam having a free-foamed bulk density of from 50 to 1100 g/l and a compressive strength of ≥ 15 kPa is obtained and rigid integral foams are excluded, for the fixing of vacuum insulation panels (VIPs) over an area of the inside of an outer wall of a cooling apparatus and/or of the outside of a wall of the inner container of a cooling apparatus. In addition, a process for producing composites comprising a wall of a cooling apparatus, a PU foam layer derived from the abovementioned PU foam reaction system and at least one VIP is described.

    ESPUMAS DE POLIURETANO DE BAJA DENSIDAD Y SU EMPLEO EN SUELAS DE ZAPATOS.

    公开(公告)号:ES2302205T3

    公开(公告)日:2008-07-01

    申请号:ES05753210

    申请日:2005-05-21

    Applicant: BASF SE

    Abstract: Espuma de poliuretano con una densidad de 120 g/L hasta por debajo de 300 g/L, que pueden ser obtenida mediante la reacción de a) un componente poliisocianato con b) un componente poliol, que contiene los componentes constituidos por b-1) poliésteroles con una viscosidad comprendida entre 150 mPas y 600 mPas, medida según la norma DIN 53015 a 75ºC, y b-2) poliésteroles polímeros, siendo la proporción de los poliésteroles polímeros (b-2) mayor que el 5% en peso, referido al peso total del componente (b), y c) en caso dado agentes prolongadores de las cadenas, en presencia de d) agentes propulsores, que contengan agua, no estando contenidos durante la reacción poliésteroles o poliésteroles polímeros que presenten átomos de azufre.

    POLYURETHANE SYSTEM WITH LONG POT LIFE AND RAPID HARDENING

    公开(公告)号:CA2931931C

    公开(公告)日:2022-11-01

    申请号:CA2931931

    申请日:2014-11-19

    Applicant: BASF SE

    Abstract: The present invention relates to processes for producing polyurethanes by mixing a) polyisocyanate, b) a mixture obtainable by introducing a salt of an alkali metal or of an alkaline earth metal into a compound containing urethane groups, c) one or more compounds containing epoxy groups and optionally d) polyol, e) chain extenders and f) fillers and other additives to give a reaction mixture and allowing this to react to give the polyurethane, where the content of alkal metal ions or of alkaline earth metal ions per equivalent of urethane groups in the compound b) is from 0.0001 to 3.5. The present invention also relates to a polyurethane obtainable by a process of this type and to the use of a polyurethane of this type for producing bodywork components for vehicles.

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