公开(公告)号：US20070034825A1

公开(公告)日：2007-02-15

申请号：US10550740

申请日：2004-03-24

申请人： Bernd Wenderoth ,  Stefan Dambach ,  Gerhard Weib

发明人： Bernd Wenderoth ,  Stefan Dambach ,  Gerhard Weib

IPC分类号： C09K3/18

CPC分类号： C23F11/164 ,  C09K5/20 ,  C23F11/10 ,  C23F11/145

摘要： An antifreeze concentrate based on alkylene glycols, glycerol and/or 1,3-propanediol comprises a) from 0.05 to 10, preferably from 0.5 to 5, % by weight, based on the total amount of the concentrate, of one or more polyethylene glycols and/or polypropylene glycols and b) from 0.01 to 10, preferably from 0.05 to 10, % by weight, based on the total amount of the concentrate, of one or more carboxamides and/or sulfonamides. Ready-to-use aqueous coolant compositions which contain from 30 to 70, in particular from 40 to 60, % by weight of the concentrate are obtainable from the novel concentrates by dilution with water. Said compositions are distinguished by effective corrosion inhibition in the case of magnesium and magnesium alloys.

摘要翻译： 基于亚烷基二醇，甘油和/或1,3-丙二醇的防冻浓缩物包含a）0.05至10重量％，优选0.5至5重量％，基于浓缩物的总量，一种或多种聚乙二醇 和/或聚丙二醇，和b）基于浓缩物的总量，一种或多种羧酰胺和/或磺酰胺的0.01至10重量％，优选0.05至10重量％。 含有30至70，特别是40至60重量％浓缩物的即用型水性冷却剂组合物可通过用水稀释从新型浓缩物中获得。 所述组合物在镁和镁合金的情况下被有效的腐蚀抑制区分。