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    1.
    发明专利
    未知

    公开(公告)号：DE102004011346A1

    公开(公告)日：2005-09-22

    申请号：DE102004011346

    申请日：2004-03-05

    Applicant: BASF AG

    Inventor： MALOTKI PETER VON ,  HENSIEK RAINER ,  LEHMANN PIT

    IPC: C08G18/12 ,  C08G18/40 ,  C08G18/46 ,  C08G18/42 ,  C08G18/72 ,  C08J9/00

    Abstract: Production of isocyanate-based rigid foam by reacting polyisocyanates with compounds having at least 2 isocyanate-reactive hydrogen atoms, at least one of which is a polyester alcohol, comprises (A) reacting a polyester alcohol or a polyol mixture containing polyester alcohol(s) with less than the stoichiometric amount of at least difunctional isocyanate(s) to a prepolymer (I) containing urethane and hydroxyl groups, (B) reacting (I) with polyisocyanate. Independent claims are also included for the following: (1) (I) with a hydroxyl (OH) number in the 100-400 mg KOH/g range; (2) rigid isocyanate-based foams produced by this process.

    6.
    发明专利
    未知

    公开(公告)号：DE102005017363A1

    公开(公告)日：2006-10-19

    申请号：DE102005017363

    申请日：2005-04-14

    Applicant: BASF AG

    Inventor： LEHMANN PIT ,  MALOTKI PETER VON ,  HENSIEK RAINER ,  SCHOEN LARS

    IPC: C08J9/20 ,  C08J9/06 ,  C08L75/04

    Abstract: The invention relates to a process for producing rigid polyurethane and polyisocyanurate foams by reacting polyisocyanates a) with compounds having at least two hydrogen atoms which are reactive toward isocyanate groups b) in the presence of blowing agents c), wherein prepolymers which comprise isocyanate groups and have an NCO content in the range from 25 to 31% by weight, based on the weight of the prepolymer, and are prepared by reacting ai) mixtures of monomeric and polymeric diphenylmethane diisocyanate with at least one compound having more than one hydrogen atom which is reactive toward isocyanate groups aii) are used as polyisocyanates a) and the compounds having at least two hydrogen atoms which are reactive toward isocyanate groups b) comprise at least one polyester alcohol bi) which comprises at least one starting component which is hydrophobic.

    WATER-BLOWN RIGID FOAMS FOR THE INSULATION OF LIQUEFIED NATURAL GAS TANKS
    8.
    发明专利
    WATER-BLOWN RIGID FOAMS FOR THE INSULATION OF LIQUEFIED NATURAL GAS TANKS 未知

    公开(公告)号：CA2674738A1

    公开(公告)日：2008-07-17

    申请号：CA2674738

    申请日：2008-01-02

    Applicant: BASF AG

    Inventor： THANE KATRIN ,  LEHMANN PIT ,  HWANG CHEOL-HYUN

    IPC: C08G18/16 ,  C08G18/18 ,  C08G18/20 ,  C08G18/48

    Abstract: The present invention relates to a rigid polyurethane foam comprising rei nforcing materials and obtainable by mixing (a) isocyanates which have a vis cosity at 25°C of less than 500 mPas with (b) compounds having groups which are reactive toward isocyanates, (c) blowing agents comprising water, (d) ca talysts and, if appropriate, (e) further additives to form a reaction mixtur e and applying the reaction mixture to a reinforcing material, where the com pounds (b) having groups which are reactive toward isocyanates comprise a po lyetherol (b1) having a functionality of 4 or more and a viscosity at 25°C o f 10 000 mPas or less and a polyetherol (b2) having a functionality of 3 or less and a viscosity at 25°C of 500 mPas or less. The present invention furt her relates to a process for producing such rigid polyurethane foams and to the use of the rigid polyurethane foams for the insulation of liquefied natu ral gas tanks.

    METODO PARA LA PRODUCCION DE ELEMENTOS COMPUESTOS BASADOS EN ESPUMAS A BASE DE ISOCIANATO.
    10.
    发明专利
    METODO PARA LA PRODUCCION DE ELEMENTOS COMPUESTOS BASADOS EN ESPUMAS A BASE DE ISOCIANATO. 未知

    公开(公告)号：MX2007002117A

    公开(公告)日：2007-04-27

    申请号：MX2007002117

    申请日：2005-09-10

    Applicant: BASF AG

    Inventor： MALOTKI PETER VON ,  CALGUA ERWIN ,  SCHAPER BERND ,  SCHON LARS ,  LEHMANN PIT ,  THATER MICHAEL

    IPC: B05B3/08 ,  B05D1/00 ,  B05B3/10 ,  B05D7/00

    Abstract: La invencion se relaciona con un proceso para la produccion de elementos compuestos, compuestos de cuando menos una capa externa a) y de una espuma rigida basada en isocianato b), en donde entre la capa externa a) y la espuma rigida basada en isocianato b) un promotor de adhesion c) se ha aplicado, y en donde la capa externa a) se mueve continuamente y el promotor de adhesion c) y el material de partida para la espuma rigida a base de isocianato b) se aplican sucesivamente a la capa externa, que comprende aplicar el promotor de adhesion c) por medio de una placa giratoria que se ha instalado horizontalmente o con una desviacion de hasta 15 degree a partir de la horizontal, de preferencia paralela a la capa externa.

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