11.
    发明专利
    未知

    公开(公告)号:DE19622333A1

    公开(公告)日:1997-12-11

    申请号:DE19622333

    申请日:1996-06-04

    Applicant: BASF AG

    Abstract: Phase-stable polyol component (I), containing (A1)polyether- and/or polyetherester-polyalcohol(s), (A2) polyester- polyol(s) and (A3) liquid fire retardant(s), with a wt. ratio of (A1):(A2):(A3) = (10 plus or minus 4.5):(13 plus or minus 4):(14 plus or minus 4.5). Also claimed is (i) a process for the production of optionally cellular polyurethanes (PUR) by reacting polyisocyanates, polyol component (I) and optionally low-mol. wt. chain extenders and/or crosslinkers in presence of catalysts and optionally blowing agents and other additives etc.; (ii) isocyanate prepolymer for aerosol foam, obtained by reacting (I) with a polyisocyanate, preferably MDI; and (iii) aerosol foam obtained by foaming this prepolymer.

    CASTING COMPOUNDS BASED ON POLYURETHANE

    公开(公告)号:CA2663855A1

    公开(公告)日:2008-04-10

    申请号:CA2663855

    申请日:2007-09-28

    Applicant: BASF AG

    Abstract: The invention relates to a polyol mixture, comprising as components a1) a t least one fat-based polyol, a2) at least one polyetherol having a number-a verage molecular weight of 500 to 2000 g/mol, and a3) possibly one or more c ross-linking agents having a number-average molecular weight of 90 to 400 g/ mol, wherein x) the number-average molecular weight of component a1) deviate s from the number-average molecular weight of component a2) by no more than 400 g/mol, and xi) the OH functionalities of components a1) and a2) deviates from each other by no more than 0.5. These polyol mixtures can be used for the production of casting compounds on polyurethane basis. Furthermore, the invention relates to casting compounds based on the above-described polyol m ixtures (A) and at least one modified isocyanate (B), and to the use of the casting compounds as potting material. The invention further relates to a me thod for the production of the above-described casting compounds. Additional ly, the invention relates to dialysis filters comprising the above-described casting compounds. Finally, the invention relates to the combination of sep arately present components (A) and (B) for joint use.

    20.
    发明专利
    未知

    公开(公告)号:NO20006150D0

    公开(公告)日:2000-12-04

    申请号:NO20006150

    申请日:2000-12-04

    Applicant: BASF AG

    Abstract: The invention relates to composite elements with the following layer structure: (i) 2-20mm metal, (ii) 10-100 mm compact polyisocyanate polyaddition products obtained by reacting (a) isocyanates with (b) compounds that are reactive with respect to isocyanates, optionally in the presence of (c) catalysts and/or (d) auxiliary agents and/or additives, (iii) 2-20mm metal, whereby an elasticity module of > 275 MPa exhibits in the temperature range -45 to +50 DEG C an adhesion of > 4 MPa to (i) and (iii), an extension of > 30 % in the temperature range -45 to +50 DEG C; a tensile strength of > 20 MPa and a compressive strength of > 20 MPa.

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