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    3.
    发明专利
    未知

    公开(公告)号：DE3832310A1

    公开(公告)日：1990-04-05

    申请号：DE3832310

    申请日：1988-09-23

    Applicant: BASF AG

    Inventor： SCHRIMPF HANS ,  KREBS HANS ,  LIEBOLD GERT DR ,  FREY GUENTER DR

    IPC: C09K3/18

    Abstract: De-icing or anti-icing compositions for aircraft, essentially containing glycols, crosslinked polyacrylic acid, a nonionic surfactant composed of alkoxylated C10-C20-alcohols, corrosion inhibitors, a mixture of NaOH and KOH, an oxidation stabiliser and water. The compositions effect a smaller loss of lift owing to an improvement in the flow behaviour on the wings while maintaining a holdover time against refreezing of at least 30 min.

    5.
    发明专利
    未知

    公开(公告)号：DE3708298A1

    公开(公告)日：1988-09-22

    申请号：DE3708298

    申请日：1987-03-14

    Applicant: BASF AG

    Inventor： GOUSETIS CHARALAMPOS DR ,  OPPENLAENDER KNUT DR ,  LIEBOLD GERT DR ,  FREY GUENTER DR

    IPC: C09K5/00 ,  C09K5/20

    Abstract: 1. A glycol-based coolant mixture which is free of nitrites and phosphates, containing a) 1 - 5% by weight of an alkali metal salt of acid II see diagramm : EP0283806,P7,F1 where R is a -CH2 -, see diagramm : EP0283806,P7,F2 see diagramm : EP0283806,P7,F3 or CH2 CH2 CH2 group, b) 0.1 - 1% by weight of a silicate of the general formula III (MO)q SiO4-q/2 where M is an alkali metal and q is from 0.4 to 4, c) 0.01 - 0.2% by weight of a silicate stabilizer, d) 0 - 0.5% by weight of an alkali nitrate, e) 0.05 - 0.2% by weight of benzotriazole or tolutriazole, f) 0.5 - 2% by weight of borax, and g) 0.05 - 1% by weight of NaOH, all the percentages being based on the glycol present in the coolant mixture.

    8.
    发明专利
    未知

    公开(公告)号：DE3708293A1

    公开(公告)日：1988-09-22

    申请号：DE3708293

    申请日：1987-03-14

    Applicant: BASF AG

    Inventor： GOUSETIS CHARALAMPOS DR ,  OPPENLAENDER KNUT DR ,  LIEBOLD GERT DR ,  FREY GUENTER DR

    IPC: C07F7/18 ,  C07F7/20

    Abstract: Alkoxysilanes containing low levels of chlorine compounds are prepared by stepwise etherification of chlorosilanes with alcohols in liquid phase and removal of the resulting hydrogen chloride by reacting the alkoxysilane obtained, which still contains a small amount of chlorine compound, with a metal alkoxide in an amount which corresponds to a small stoichiometric excess based on the proportion of chlorine compound, and freeing the reaction product from the resulting salt.

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