Process for producing polymer foams comprising imide groups

    公开(公告)号:AU2013301520A1

    公开(公告)日:2015-02-26

    申请号:AU2013301520

    申请日:2013-08-08

    Applicant: BASF SE

    Abstract: A process for producing a polymer foam comprises reacting components A to C in the presence of component D and optionally E or an isocyanate-functional prepolymer of components A and B with component C in the presence of component D and optionally component E, the total amount of which is 100 wt%, (A) 35 to 65 wt% of at least one polyisocyanate component A, wherein 10 to 100 wt% of component A is a condensation product comprising polyimide groups and resulting from condensing at least one polyisocyanate component with at least one polycarboxylic acid having at least 3 COOH groups per molecule or with the anhydride of said acid, (B) 5 to 50 wt% of at least one polyol component B, (C) 1 to 59 wt% of at least one polycarboxylic acid component C, and (D) 0.01 to 3 wt% of at least one Lewis base component D, (E) 0 to 5 wt% of at least one foam stabilizer component E, wherein the reaction takes place with a release of carbon dioxide.

    ISOCYANATE-EPOXY-FOAM SYSTEM
    63.
    发明专利

    公开(公告)号:CA2919162A1

    公开(公告)日:2015-01-29

    申请号:CA2919162

    申请日:2014-07-25

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing a hard foam, comprising the following steps: at least one polyisocyanate is reacted with a mixture containing at least one polyepoxide, water and at least one additional hydrogen azide compound, said reaction taking place in the presence of a metal-free Lewis base with at least one nitrogen atom, hard foams obtained according to said type of method, and to the use of the claimed hard foam for producing insulating materials, vacuum insulation panels, cooling devices, components, wind rotor blades or elements boat and vehicle construction.

    SISTEMA DE MATERIALES MIXTOS DE POLIURETANO QUE TIENEN RESISTENCIA A ALTA COMPRESION Y RIGIDEZ.

    公开(公告)号:MX2012006873A

    公开(公告)日:2012-07-25

    申请号:MX2012006873

    申请日:2010-12-16

    Applicant: BASF SE

    Abstract: La presente invención se refiere a un sistema de materiales mixtos de poliuretano que comprende una espuma de poliuretano rígida y un material de revestimiento compuesto de un poliuretano compacto o una poliurea compacta, en donde la espuma de poliuretano rígida comprende un material de refuerzo tridimensional poroso que forma una red, en donde la red abarca por lo menos el 50% del volumen de la espuma de poliuretano rígida, o por lo menos dos capas de un material de refuerzo por lo menos de dos dimensiones, poroso. La presente invención además se refiere a un proceso para producir el sistema mixto de poliuretano y también un artículo deportivo, parte de revestimiento o artículo de mueble que comprende dicho sistema mixto de poliuretano.

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