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    PROCESS FOR PRODUCING POLYURETHANE-POLYISOCYANURATE FOAMS
    1.
    发明专利
    PROCESS FOR PRODUCING POLYURETHANE-POLYISOCYANURATE FOAMS 未知

    公开(公告)号：DE3269728D1

    公开(公告)日：1986-04-10

    申请号：DE3269728

    申请日：1982-12-06

    Applicant: BASF AG

    Inventor： HORACEK HEINRICH DR ,  GEHM ROBERT DR ,  FRANK WOLFRAM DR ,  MARX MATTHIAS DR

    IPC: C08G18/18

    Abstract: The invention describes a process for harmonizing the reaction rates for the formation of urethane and isocyanurate groups during the preparation of polyurethane-polyisocyanurate foams by reacting organic polyisocyanates with polyols in the presence of blowing agents and salts of amines having the formula as catalysts, wherein R stands for an hydrogen atom or a straight chained or branched alkyl radical with 1 to 19 carbon atoms, and n and m are equal or different whole numbers from 2 to 10.

    3.
    发明专利
    未知

    公开(公告)号：DE3700245A1

    公开(公告)日：1988-07-21

    申请号：DE3700245

    申请日：1987-01-07

    Applicant: BASF AG

    Inventor： SCHERZER DIETRICH DR ,  ZAHN ERWIN DR ,  FRANK WOLFRAM DR

    IPC: C08J9/04 ,  C08G18/00 ,  C08G18/70 ,  C08J9/36 ,  C08J9/40 ,  C08L75/04 ,  C08J9/02 ,  C08J9/42 ,  C08G18/14 ,  B29C35/02 ,  B29C67/20 ,  D06N3/14

    Abstract: The subject of this invention is a process for the preparation of lightweight, planar molded articles, e.g. those having a thickness from 0.1 to 40 mm and having a density of 0.015 to 0.25 g/cm3, by treating porous materials, preferably open celled or flexible or semi-rigid polyurethane foams, with an effective amount of an aqueous dispersion or emulsion of organic compounds containing NCO groups and allowing the isocyanate compound to cure, optionally while molding, at a temperature from 25 DEG C. to 180 DEG C. and optionally at a pressure of 1 to 50 bar. The invention also relates to molded articles prepared according to this process which have special mechanical properties.

    4.
    发明专利
    未知

    公开(公告)号：DE3332251A1

    公开(公告)日：1985-03-21

    申请号：DE3332251

    申请日：1983-09-07

    Applicant: BASF AG

    Inventor： MARX MATTHIAS DR ,  GANSS HELMUT ,  FRANK WOLFRAM DR

    IPC: C08G18/38 ,  C08G18/65 ,  C08G18/66 ,  C08G18/79 ,  C08G18/42 ,  C08G18/48 ,  C08G18/14

    Abstract: The invention relates to storage-stable tris(hydroxyalkyl)isocyanurate polyol dispersions containing (a) from 2 to 70 parts by weight tris(hydroxyalkyl)isocyanurate, (b) from 98 to 30 parts by weight of at least one polyol having a functionality of from 2 to 8 and a hydroxyl number from 20 to 1800, and (c) from 0 to 20 parts by weight of one or more dispersion stabilizers. The dispersions are prepared by dissolving starting components A and B at temperatures in excess of 100 DEG C., in some cases adding a dispersion stabilizer and/or crystallization accelerator, with continuous and step-wise cooling of the mixture while stirring. The products are utilized for the preparation of polyurethane plastics, in particular polyisocyanurate foams containing polyurethane or polyurethane groups.

    6.
    发明专利
    未知

    公开(公告)号：DE3784236D1

    公开(公告)日：1993-03-25

    申请号：DE3784236

    申请日：1987-12-22

    Applicant: BASF AG

    Inventor： SCHERZER DIETRICH DR ,  ZAHN ERWIN DR ,  FRANK WOLFRAM DR

    IPC: C08J9/04 ,  C08G18/00 ,  C08G18/70 ,  C08J9/36 ,  C08J9/40 ,  C08L75/04

    Abstract: Light flat moulded parts (I) are mfd. by treating porous materials (II) with an organic cpd. (III) contg. an effective amt. of NCO gps. and hardening, with shaping as required; the novelty is that (III) is used in aq. dispersion or emulsion, which is used to impregnate open-cell foam materials (IV) and then crosslinked. PU parts (I) have thickness, 0.1-40 mm; density, 0.015-0.25 g/cm3; tensile strength 100-500 kPa; elingation at break 10-70%; compression hardness, 10-100 kPa at 40% deformation; thermal flexural strength (DIN 53424), 100-160 deg.C.

    STORAGE STABLE TRIS- (HYDROXYALKYL)ISOCYANURATE-POLYOL DISPERSIONS AND METHOD OF MAKING AND USING THE SAME
    7.
    发明专利
    STORAGE STABLE TRIS- (HYDROXYALKYL)ISOCYANURATE-POLYOL DISPERSIONS AND METHOD OF MAKING AND USING THE SAME 未知

    公开(公告)号：DE3469539D1

    公开(公告)日：1988-04-07

    申请号：DE3469539

    申请日：1984-09-03

    Applicant: BASF AG

    Inventor： MARX MATTHIAS DR ,  GANSS HELMUT ,  FRANK WOLFRAM DR

    IPC: C08G18/38 ,  C08G18/65 ,  C08G18/66

    Abstract: The invention relates to storage-stable tris(hydroxyalkyl)isocyanurate polyol dispersions containing (a) from 2 to 70 parts by weight tris(hydroxyalkyl)isocyanurate, (b) from 98 to 30 parts by weight of at least one polyol having a functionality of from 2 to 8 and a hydroxyl number from 20 to 1800, and (c) from 0 to 20 parts by weight of one or more dispersion stabilizers. The dispersions are prepared by dissolving starting components A and B at temperatures in excess of 100 DEG C., in some cases adding a dispersion stabilizer and/or crystallization accelerator, with continuous and step-wise cooling of the mixture while stirring. The products are utilized for the preparation of polyurethane plastics, in particular polyisocyanurate foams containing polyurethane or polyurethane groups.

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