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    FLAT COMPOSITE MATERIAL
    2.
    发明专利
    FLAT COMPOSITE MATERIAL 未知

    公开(公告)号：DE3566870D1

    公开(公告)日：1989-01-26

    申请号：DE3566870

    申请日：1985-10-18

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  BAUMANN EDWIN ,  MARX MATTHIAS DR ,  GERARTS PETER

    IPC: B32B5/28 ,  B32B5/24 ,  B32B37/10 ,  B32B38/00 ,  C08G69/16 ,  C08J5/24 ,  C08J9/40

    Abstract: Sheet-like reinforced materials consisting of A. a core layer comprising a sheet-like textile structure, preferably a glass fiber mat, B. a plastic matrix composed of a nylon which has been polymerized under alkaline conditions and penetrates both the core layer and the surface layer of layers, are produced batchwise by the RIM method or continuously on a double-belt press by impregnating the sheet-line textile structure and the foam sheets with a lactam melt and polymerizing the latter. The reinforced material can be used for the production of finished articles having a satisfactory surface, for example for the automotive or aircraft industry.

    5.
    发明专利
    未知

    公开(公告)号：DE3519692A1

    公开(公告)日：1986-12-04

    申请号：DE3519692

    申请日：1985-06-01

    Applicant: BASF AG

    Inventor： MUELLER GERHARD DR ,  MARX MATTHIAS DR ,  JARRE WOLFGANG DR ,  BAUMANN EDWIN ,  BUETHE INGOLF DR

    IPC: C08G18/10 ,  C08G18/32 ,  C08G18/48 ,  C08J9/00 ,  C08G18/66 ,  C08G18/14 ,  C08L75/08 ,  C08J9/02

    Abstract: The invention is a process for the preparation of elastic polyurethane flexible foams having densities from approximately 25 to 60 kg/m3, and producing molded articles in closed molds at temperatures from 25 DEG to 80 DEG C., comprising reacting (A) an organic polyisocyanate prepolymer having an isocyanate content from 6 to 20 percent by weight prepared by reacting a toluene diisocyanate and/or a diphenylmethane diisocyanate with a di- to tetrafunctional polyether polyol having a hydroxyl number from 20 to 50 and oxyethylene terminal group content of at least 10 to 30 percent by weight (B) a mixture of compounds containing reactive hydrogen atoms, comprising a mixture of (a) from 55 to 89.5 parts by weight of at least one di- to tetrafunctional polyether polyol having a hydroxyl number of from 20 to 80 and less than 10 percent by weight terminal oxyethylene groups, (b) from 0.5 to 20 parts by weight of at least one alkanolamine, and (c) from 10 to 25 parts by weight water, in the presence of (C) a blowing agent, (D) a catalyst, and optionally (E) auxiliaries and/or additives.

    PROCESS FOR THE PREPARATION OF ELASTIC FLEXIBLE POLYURETHANE FOAMS
    6.
    发明专利
    PROCESS FOR THE PREPARATION OF ELASTIC FLEXIBLE POLYURETHANE FOAMS 未知

    公开(公告)号：DE3272455D1

    公开(公告)日：1986-09-11

    申请号：DE3272455

    申请日：1982-09-09

    Applicant: BASF AG

    Inventor： BUETHE INGOLF DR ,  STRAEHLE WOLFGANG DR ,  MARX MATTHIAS DR ,  PETERS REINHARD DR

    IPC: C08G18/48 ,  C08G18/14

    Abstract: For the preparation of elastic flexible polyurethane foams with improved breaking elongation and very good setting behavior as well as densities from 7 to 120 grams per liter, organic polyisocyanates are reacted in the presence of blowing agents, catalysts and, optionally, auxiliaries and/or additives with polyols based on polyoxyalkylene polyols having terminal oxyethylene blocks of a degree of oxyethlation of 1 to 13 and which have a content of primary hydroxyl groups at the corresponding degree of oxyethylation equal or exceeding the value of curve A in the Figure in which curve A describing the relationship of the content of primary hydroxyl groups with the degree of oxyethylation.

    PROCESS FOR PRODUCING POLYURETHANE-POLYISOCYANURATE FOAMS
    8.
    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.

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