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    Process for producing rigid polyurethane foams
    181.
    发明专利
    Process for producing rigid polyurethane foams 未知

    公开(公告)号：AU2012241832A1

    公开(公告)日：2013-10-31

    申请号：AU2012241832

    申请日：2012-04-12

    Applicant: BASF SE

    Inventor： TOMOVIC ZELJKO ,  JACOBMEIER OLAF ,  KAMPF GUNNAR

    IPC: C08G18/48 ,  C08G18/50 ,  C08G18/66 ,  C08G18/76 ,  C08G101/00

    Abstract: A process for producing rigid polyurethane foams by reacting a) organic polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, d) catalysts and optionally, e) auxiliaries and additives, wherein a mixture of b1) from 20 to 60 parts by weight of one or more high-functionality polyether alcohols having functionalities of from 3.5 to 5.5 and a hydroxyl number of from 400 to 550 mg KOH/g, b2) from 5 to 25 parts by weight of one or more polyether alcohols based on aromatic and/or aliphatic amines and having functionalities of from 3.5 to 4.5 and a hydroxyl number of from 350 to 500 mg KOH/g, b3) from 5 to 25 parts by weight of one or more polyether alcohols having functionalities of from 2 to 4 and a hydroxyl number of from 150 to 450 mg KOH/g b4) from 1 to 15 parts by weight of one or more low molecular weight chain extenders and/or crosslinkers having functionalities of from 2 to 3 and a molecular weight Mw of

    PU rigid foam with low thermal conductivity and good thermal stability
    182.
    发明专利
    PU rigid foam with low thermal conductivity and good thermal stability 未知

    公开(公告)号：AU2012230372A1

    公开(公告)日：2013-10-10

    申请号：AU2012230372

    申请日：2012-03-21

    Applicant: BASF SE

    Inventor： TOMASI GIANPAOLO ,  GRIESER-SCHMITZ CHRISTOF ,  WINDELER LUDWIG ,  ELLERSIEK CARSTEN ,  KAMPF GUNNAR

    IPC: C08G18/18 ,  C08G18/40 ,  C08G18/48

    Abstract: The invention relates to a polyurethane foam that can be obtained by reacting at least one polyether polyol as component (A), at least one polyether polyol based on at least one amine as component (B), at least one polyester polyol as component (C), and at least one polyisocyanate as component (D), in the presence of at least one catalyst selected from the group consisting of salts of carboxylic acids with 1 to 20 C atoms, compounds containing amines, and mixtures thereof, as component (E), and at least one blowing agent as component (F), with the ratio of OCN groups to OH groups (ISO index) being between 140 and 180. In addition, the present invention relates to a method for producing this polyurethane foam, to the use of same for insulation, particularly for pipe insulation, and to a pipe insulator containing a polyurethane foam according to the invention.

    PROCESO PARA PRODUCIR ESPUMAS RIGIDAS DE POLIURETANO.
    186.
    发明专利
    PROCESO PARA PRODUCIR ESPUMAS RIGIDAS DE POLIURETANO. 未知

    公开(公告)号：MX2012012131A

    公开(公告)日：2013-02-26

    申请号：MX2012012131

    申请日：2011-04-19

    Applicant: BASF SE

    Inventor： FABISIAK ROLAND ,  KAMPF GUNNAR ,  JACOBMEIER OLAF ,  KOESTERS MICHAEL

    IPC: C08G18/40 ,  C08G18/42 ,  C08G18/48

    Abstract: La invención se refiere a un proceso para producir espumas rígidas de poliuretano haciendo reaccionar: a) poliisocianatos con b) compuestos que tengan al menos dos átomos de hidrógeno que sean reactivos hacia los grupos isocianato, en presencia de c) agentes de soplado, en donde los compuestos b) que tienen al menos dos átomos de hidrógeno los cuales son reactivos hacia los grupos isocianato comprenden al menos un alcohol aromático de poliéster bi) ; al menos un alcohol de poliéter bii) que tenga una funcionalidad desde 4 hasta 8, y un índice de hodroxilo en el intervalo desde 300 hasta 600 mg/KOH/g.

    PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS
    190.
    发明专利
    PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS 未知

    公开(公告)号：CA2833077A1

    公开(公告)日：2012-10-18

    申请号：CA2833077

    申请日：2012-04-12

    Applicant: BASF SE

    Inventor： TOMOVIC ZELJKO ,  JACOBMEIER OLAF ,  KAMPF GUNNAR

    IPC: C08G18/48 ,  C08G18/50 ,  C08G18/66 ,  C08G18/76

    Abstract: A process for producing rigid polyurethane foams by reacting a) organic polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, d) catalysts and optionally, e) auxiliaries and additives, wherein a mixture of b1) from 20 to 60 parts by weight of one or more high-functionality polyether alcohols having functionalities of from 3.5 to 5.5 and a hydroxyl number of from 400 to 550 mg KOH/g, b2) from 5 to 25 parts by weight of one or more polyether alcohols based on aromatic and/or aliphatic amines and having functionalities of from 3.5 to 4.5 and a hydroxyl number of from 350 to 500 mg KOH/g, b3) from 5 to 25 parts by weight of one or more polyether alcohols having functionalities of from 2 to 4 and a hydroxyl number of from 150 to 450 mg KOH/g b4) from 1 to 15 parts by weight of one or more low molecular weight chain extenders and/or crosslinkers having functionalities of from 2 to 3 and a molecular weight Mw of

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