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    PRODUCTION OF POLYURETHANE MOLDING IN SHEET FORM
    1.
    发明专利
    PRODUCTION OF POLYURETHANE MOLDING IN SHEET FORM 失效

    公开(公告)号：JPH1045924A

    公开(公告)日：1998-02-17

    申请号：JP11674497

    申请日：1997-05-07

    Applicant: BASF AG

    Inventor： SCHERZER DIETRICH DR ,  JUNG LUDWIG ,  BRUCHMANN BERND DR ,  RENZ HANS DR

    IPC: C08J5/18 ,  C08G18/32 ,  C08G18/79 ,  C08J5/04 ,  D06M15/564

    Abstract: PROBLEM TO BE SOLVED: To produce a polyurethane molding in sheet form by a simple and low-cost process capable of avoiding shortcomings in the prior art. SOLUTION: This process for producing a polyurethane molding in sheet form comprises impregnating a porous sheet with a polyurethane-forming material, and forming a polyurethane by reacting the material in a molding die that can be heated while performing molding at the same time. In this process, the polyurethane-forming material used comprises a prepolymer containing a free isocyanato group and a reversibly blocked group reactive with an isocyanato group, or a group reactive with a free isocyanato group and a reversibly blocked isocyanato group.

    2.
    发明专利
    未知

    公开(公告)号：DE50112981D1

    公开(公告)日：2007-10-25

    申请号：DE50112981

    申请日：2001-03-13

    Applicant: BASF AG

    Inventor： BRUCHMANN BERND DR ,  RENZ HANS DR ,  KOENIGER RAINER DR ,  EHE ULRIKE ,  TREULING ULRICH DR ,  MUELLER-MALL RUDOLF DR

    IPC: C08G18/10 ,  C08G18/72 ,  C08G18/09 ,  C08G18/80 ,  C09D175/04 ,  C09J175/04

    Abstract: Highly functionalized polyisocyanates are prepared by reaction of a di- or polyisocyanate with compounds having at least three and/or two isocyanate reactive groups whereby at least one of components have functional groups having different reactivity and whereby the reaction ratio is chosen such that on average the addition product contains one isocyanate reactive group; Highly functionalized polyisocyanates (I) are prepared by (A) production of an addition product containing an isocyanate reactive group and at least two isocyanate groups by reaction of (A1) a di- or polyisocyanate with (A2) compounds having at least three isocyanate reactive groups and /or (A3) compounds having two isocyanate reactive groups whereby at least one of components (A1)-(A3) have functional groups having different reactivity to the opposite functional groups of the other components and whereby the reaction ratio is chosen such that on average the addition product (A) contains one isocyanate reactive group. (B) optionally intermolecular addition reaction of the addition product (A) to form a polyaddition product that, on average, contains one isocyanate reactive group and more than two isocyanate groups (C) reaction of the addition product (A) and/or the polyaddition product (B) with a di- or polyisocyanate (C1). An Independent claim is included for the polyaddition product (B)

    5.
    发明专利
    未知

    公开(公告)号：DE59307529D1

    公开(公告)日：1997-11-20

    申请号：DE59307529

    申请日：1993-06-21

    Applicant: BASF AG

    Inventor： PORSCH BETTINA DR ,  RENZ HANS DR

    IPC: C08F2/02 ,  C08F2/06 ,  C08F265/00 ,  C08F265/06 ,  C08F291/00 ,  C09D151/00

    Abstract: A vinyl polymer obtainable by polymerisation of vinyl monomers in at least two steps, where, in the first step, from 5 to 95% by weight of the vinyl monomers are polymerised in an organic solvent or in the solid phase and, in the second step, from 5 to 95% by weight of the vinyl monomers are polymerised in the presence of the vinyl polymer obtained in the first step, likewise in an organic solvent or in the solid phase, with the proviso that the polymerisation in the second step is carried out on the conditions under which a mean molecular weight Mn which is at least 1000 higher than the vinyl polymer in the first step arises for the vinyl monomers of the second step in the absence of the vinyl polymers obtained in the first step.

    6.
    发明专利
    未知

    公开(公告)号：DE19547974A1

    公开(公告)日：1997-06-26

    申请号：DE19547974

    申请日：1995-12-21

    Applicant: BASF AG

    Inventor： BRUCHMANN BERND DR ,  RENZ HANS DR ,  MOHRHARDT GUENTER

    IPC: C08G18/80 ,  C07D317/14 ,  C07D319/06 ,  C08G18/28 ,  C08G18/32 ,  C09D175/00 ,  C09D175/04 ,  C07D263/04 ,  C07D321/00 ,  C07D247/02 ,  C07D277/04 ,  C07D339/00 ,  C07D327/02 ,  C08G18/38 ,  C08G18/78 ,  C08G18/40

    Abstract: Compounds with isocyanate groups and masked groups reactive in relation to isocyanates, of the formula (I), in which R , R , R , X and Y have the following meaning: R , R are hydrogen, C1- to C10-alkyl, C6- to C10-aryl, C7- to C10-aralkyl or R and R form together C3- to C10-alkane diyl; X, Y are -O-, -S-, (a), in which R is hydrogen, a C1- to C20-alkyl group which is optionally interrupted by oxygen atoms in the ether function, a C6 to C10-aryl group or a C7- to C10-aralkyl group; R is a C1- to C10-alkane diyl group which forms a 4 to 7-membered ring along with the unit -X-CR R -Y-, in which either in the unit R one of the hydrogen atoms or in the unit (b), the radical R is replaced by an allophanate group (R ), in which R is a divalent, aliphatic, alicyclic, araliphatic or aromatic C2- to C20-hydrocarbon unit, and R is a simple bond or a divalent, aliphatic, alicyclic, araliphatic or aromatic C1- to C20-hydrocarbon unit or a mono or poly- (C2- to C4-alkylene oxide) unit, and R is a carbamoyl (c) radical or a biuret group (R ), in which one of the radicals R is hydrogen and the other radical has the same meaning as R , or a biuret group (R ) in which one of the radicals R has the same meaning as R and the other has the same meaning as R , or a thioallophanate group (R ).

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