COOLING AGENTS FOR COOLING SYSTEMS IN FUEL CELL DRIVES

    公开(公告)号:HU227774B1

    公开(公告)日:2012-02-28

    申请号:HU0302317

    申请日:2001-12-14

    Applicant: BASF AG

    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

    169.
    发明专利
    未知

    公开(公告)号:DE50113536D1

    公开(公告)日:2008-03-13

    申请号:DE50113536

    申请日:2001-07-13

    Applicant: BASF AG

    Abstract: The invention relates to antifreeze concentrates which are based on alkylene glycols or derivatives thereof or on glycerin, containing 0.05 to 10 wt. % of one or more cathoxylic acid amides and/or sulfonic acid amides in relation to the total quantity of concentrate.

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