APARATOS DINAMICAMENTE EVACUABLES QUE COMPRENDEN AEROGELES O XEROGELES ORGANICOS.

    公开(公告)号:MX2013010366A

    公开(公告)日:2013-10-30

    申请号:MX2013010366

    申请日:2012-03-26

    Applicant: BASF SE

    Abstract: La presente invención se refiere a un aparato dinámicamente evacuable, eléctricamente operado que comprende una región contiguamente evacuable y una región de trabajo cuya temperatura puede ser controlada y que es térmicamente aislada por la región contiguamente evacuable de la temperatura ambiente, y también un medio para mantener activamente un vacío, de tal manera que la presión en la región contiguamente evacuable del aparato sea constante durante el tiempo dentro de un intervalo de presión definido, en donde la región contiguamente evacuable constituye por lo menos 20% en volumen del volumen total ocupado por un material de aislamiento poroso y/o celular en el aparato y la región contiguamente evacuable comprende por lo menos un aerogel orgánico y/o xerogel orgánico.

    METHOD FOR PRODUCING POLYETHER ALCOHOLS

    公开(公告)号:SG184522A1

    公开(公告)日:2012-11-29

    申请号:SG2012075032

    申请日:2011-04-20

    Applicant: BASF SE

    Abstract: 14Method for producing polyether alcohols Abstract5 The invention relates to a process for preparing polyether alcohols by reacting a) aromatic amines with b) alkylene oxides in the presence of c) a catalyst, wherein thealkylene oxide b) comprises at least 90% by weight, based on the weight of the component b), of propylene oxide and an amine is used as catalyst c). No suitable figure

    Verfahren zur Herstellung von kompakten transparenten Polyurethanen

    公开(公告)号:DE102009047214A1

    公开(公告)日:2010-09-09

    申请号:DE102009047214

    申请日:2009-11-27

    Applicant: BASF SE

    Abstract: Gegenstand der Erfindung ist ein Verfahren zur Herstellung von kompakten transparenten Polyurethanen durch Umsetzung von a) aliphatischen Polyisocyanaten mit b) Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen, dadurch gekennzeichnet, dass als aliphatische Polyisocyanate a) eine Mischung aus trimerisiertem HDI und trimerisiertem IPDI und als Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen b) mindestens einen Polyetheralkohol, hergestellt durch Umsetzung von Alkylenoxiden mit Verbindungen mit mindestens zwei mit Alkylenoxiden reaktiven Wasserstoffatomen eingesetzt wird und die Komponente b) eine Hydroxylzahl im Bereich zwischen 350 und 950 mgKOH/g aufweist.

    POLYURETHANELASTOMEREN
    46.
    发明专利

    公开(公告)号:DE502006002256D1

    公开(公告)日:2009-01-15

    申请号:DE502006002256

    申请日:2006-02-21

    Applicant: BASF SE

    Abstract: Cylindrical molded bodies (I) comprises cellular polyurethane elastomers with a density of 300-900 kg/m 3>, a tensile strength of >= 2 N/mm 2>, a breach extension of >= 200% and a tear resistance of >= 8 N/mm, where the cellular polyurethane elastomers are based on reaction of: (i) isocyanate groups of prepolymers based on methylenediphenyldiisocyanate and polyetherdiol; with (ii) cross linking components containing polyetheralcohol; diol with a molecular weight of 62-499 g/mol; water; and catalysts. Cylindrical molded bodies (I) comprises cellular polyurethane elastomers with a density of 300-900 kg/m 3>according to DIN EN ISO 845, a tensile strength of >= 2 N/mm 2>according to DIN EN ISO 1798, a breach extension of >= 200% according to DIN EN ISO 1798 and a tear resistance of >= 8 N/mm according to DIN ISO 34-1 B, where the cellular polyurethane elastomers are based on reaction of: (i) prepolymers exhibiting isocyanate groups based on methylenediphenyldiisocyanate and polyetherdiol with a molecular weight of 1500-3000 g/mol based on propylene oxide and/or ethyleneoxide; with (ii) cross linking components containing polyetheralcohol with a nominal functionality of 2-3 in relation to isocyanates and a molecular weight of 1500-6000 g/mol based on propylene oxide and/or ethyleneoxide; diol with a molecular weight of 62-499 g/mol; water; and catalysts, where the polyol exhibits an average molecular mass of smaller than 3900 g/mol, where the average polyol molecular mass (M(polyol)) is calculated by (M b11xm b11+...+M b1nxm b1n)xW p+(M b21xm b21+...+M b2nxm b2n)xW v/(m b11+...+m b1n)xW p+(m b21+...+m b2n)xW v, where M (polyol) is average polyol molecular mass in g/mol; M b11(and/or M b1n) is molecular mass of polyol b11 (and/or polyol b1n) in (i) in g/mol; m b11(and/or m b1n) is mass proportion of polyol b11 (and/or polyol b1n) in (i) in g/g; W pis mass proportion of (i) in the cylindrical molded article in g/g; M b21(and/or M b2n) is molecular mass of polyol b21 and/or (polyol b2n) in (ii) in g/mol; m b21(and/or m b2n) is mass proportion of polyol b21 (and/or polyol b2n) in (ii) in g/g; and W vis mass proportion of (ii) in the cylindrical molded article in g/g. Independent claims are included for: (1) automobile chassis containing shock absorbers, a hollow cylindrical molded bodies, which is placed on its piston rod; and (2) the preparation of (I).

    47.
    发明专利
    未知

    公开(公告)号:DE502006001200D1

    公开(公告)日:2008-09-04

    申请号:DE502006001200

    申请日:2006-03-16

    Applicant: BASF SE

    Abstract: The invention relates to polyurethane shoe soles and to a method for the production thereof and the use of 2-methyl-1,3-propandiol for producing polyurethane shoe soles.

    48.
    发明专利
    未知

    公开(公告)号:AT391740T

    公开(公告)日:2008-04-15

    申请号:AT05753210

    申请日:2005-05-21

    Applicant: BASF SE

    Abstract: The invention relates to "low-density" polyurethane foams, preferably "low-density" flexible integral polyurethane foams, i.e. polyurethane foams with density of from 120 grams per liter (herein after termed g/L) to less than 300 g/L, obtainable via reaction of polyisocyanates (a) with a polyol component (b) comprising the following constituents: polyesterol (b-1) and polymer polyesterol (b-2), where the proportion of polymer polyesterols (b-2) is from more than 5 to less than 50% by weight, based on the total weight of component (b), and, if appropriate, chain extenders (c), in the presence of water (d) as blowing agent, and also to their use in shoe soles.

    POLYURETHANE FOAMS WITH REDUCED AROMATIC AMINE CONTENT

    公开(公告)号:PH12021550870A1

    公开(公告)日:2021-12-06

    申请号:PH12021550870

    申请日:2021-04-19

    Applicant: BASF SE

    Abstract: The present invention relates to a method for producing polyurethane foams with a density of 30 g/dm3 to 70 g/dm3, in which (a) aromatic polyisocyanate is mixed with (b) polymer compounds with groups reactive to isocyanates, (c) optionally chain elongation and/or cross-linking agents, (d) a catalyst, (e) propellant, containing water, (f) 0.1 to 5 wt. pcnt lactam, in relation to the total weight of the components (a) to (f), and (g) optionally additives, at an isocyanate index of 50 to 95, to form a reaction mixture; the reaction mixture reacts to form polyurethane foam, the catalyst contains metal catalyst and amine catalyst, and the amine catalyst comprises tertiary nitrogen atoms and is used in sufficient quantity that the tertiary nitrogen atom content in the amine catalyst, in relation to the weight of the starting components (a) to (e), amounts to between 0.0001 and 0.003 mol /100 g of foam. The present invention further relates to a polyurethane foam which may be obtained by a method of this kind, and the use of a soft polyurethane foam of this kind for producing pillows, seat cushions and mattresses.

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