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    172.
    发明专利
    未知

    公开(公告)号：DE50110832D1

    公开(公告)日：2006-10-05

    申请号：DE50110832

    申请日：2001-12-14

    Applicant: BASF AG

    Inventor： WENDEROTH BERND ,  MESZAROS LADISLAUS ,  DAMBACH STEFAN ,  FIDORRA UWE ,  BERGEMANN MARCO

    IPC: C09K3/00 ,  C09K5/20 ,  C09K5/08 ,  H01M8/04 ,  H01M8/10

    Abstract: The invention relates to antifreeze concentrates for cooling systems in fuel cell drives, from which are produced ready-to-use aqueous cooling agent compositions having a maximum conductivity of 50 mus/cm, based on alkylene glycols or the derivatives thereof, and containing orthosilicic acid esters of formula (I) wherein the variables R 1 to R 4 are the same or different and represent C 1 -C 20 alkyl substituents, C 2 -C 20 alkenyl substituents, C 1 -C 20 hydroxyalkyl substituents, optionally substituted C 6 -C 12 aryl substituents and/or glycol ether substituents of formula (CH 2 -CH 2 -O) n -R 5 wherein R 5 represents hydrogen or C 1 -C 5 alkyl and n represents a number between 1 and 5

    178.
    发明专利
    未知

    公开(公告)号：NO20053744D0

    公开(公告)日：2005-08-04

    申请号：NO20053744

    申请日：2005-08-04

    Applicant: BASF AG

    Inventor： KORMANN CLAUDIUS ,  WENDEROTH BERND ,  MESZAROS LADISLAUS ,  ZOLLNER HORST ,  HILLERNS FRANK

    IPC: C09K5/10 ,  C09K5/20 ,  C09K

    Abstract: Heat carrier liquid concentrate contains (wt.%), in addition to glycol(s), (a) 0.05-10% aliphatic amine(s) (I), (b) 0.005-3% optionally stabilized silicate(s), (c) 0-3% corrosion inhibitor(s) selected from hydrocarbyl-triazoles and -thiazoles, (d) 0-5% alkali metal or (substituted) ammonium molybdate(s) and (e) 0-1 polymeric hard water stabilizer(s). Heat carrier liquid concentrate contains (wt.%), in addition to glycol(s): (a) 0.05-10 (preferably 0.1-5)% aliphatic amine(s) of formula (I); (b) 0.005-3 (0.01-1)% optionally stabilized silicate(s); (c) 0-3 (0.01-3)% corrosion inhibitor(s) selected from hydrocarbyl-triazoles and -thiazoles; (d) 0-5 (0.01-1)% alkali metal or (substituted) ammonium molybdate(s); and (e) 0-1 (0.1-0.5) polymeric hard water stabilizer(s): NR1R2R3 (I) R1-3 = H or optionally branched 1-9 C (preferably 3-4C) (hydroxy)alkyl. An Independent claim is also included for a ready-prepared aqueous heat carrier liquid containing water and 10-90 wt.% of the concentrate.

    AGENTES REFRIGERANTES PARA SISTEMAS REFRIGERANTES EN MOTORES DE PILA DE COMBUSTIBLE QUE CONTIENEN DERIVADOS DE AZOL.
    179.
    发明专利
    AGENTES REFRIGERANTES PARA SISTEMAS REFRIGERANTES EN MOTORES DE PILA DE COMBUSTIBLE QUE CONTIENEN DERIVADOS DE AZOL. 未知

    公开(公告)号：ES2231712T3

    公开(公告)日：2005-05-16

    申请号：ES02745366

    申请日：2002-06-06

    Applicant: BASF AG

    Inventor： WENDEROTH BERND ,  DAMBACH STEFAN ,  MESZAROS LADISLAUS ,  FIDORRA UWE

    IPC: F01P11/14 ,  C09K5/08 ,  C09K5/20 ,  H01M8/04

    Abstract: Concentrados de agentes anticongelantes para sistemas refrigerantes en motores de pila de combustible, a partir de los cuales resultan composiciones refrigerantes acuosas listas para empleo con una conductividad de un máximo de 50 S/cm, a base de alquilenglicoles o sus derivados, que contienen uno o varios compuestos heterocíclicos de cinco eslabones (derivados de azol) con 2 o 3 heteroátomos del grupo nitrógeno y azufre, no contienen, o contienen como máximo un átomo de azufre, y que pueden portar un compuesto condensado aromático o saturado de seis eslabones, así como, adicionalmente, orto-silicatos, a partir de los cuales resultan composiciones acuosas de agentes refrigerantes listas para empleo con un contenido en silicio de 2 a 2000 ppm.

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