Invention Grant
- Patent Title: Antifreeze concentrates and coolant compositions based on polyglycols and amides for protecting magnesium and the alloys thereof
- Patent Title (中): 基于用于保护镁的聚二醇和酰胺的防冻浓缩物和冷却剂组合物及其合金
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Application No.: US10550740Application Date: 2004-03-24
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Publication No.: US07588695B2Publication Date: 2009-09-15
- Inventor: Bernd Wenderoth , Stefan Dambach , Gerhard Weiβ
- Applicant: Bernd Wenderoth , Stefan Dambach , Gerhard Weiβ
- Applicant Address: DE Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- Priority: DE10313280 20030325
- International Application: PCT/EP2004/003108 WO 20040324
- International Announcement: WO2004/085566 WO 20041007
- Main IPC: C09K5/00
- IPC: C09K5/00
Abstract:
Ready-to-use aqueous coolant compositions having alkylene glycols, glycerol and/or 1,3-propanediol and a) from 0.05 to 10% by weight, based on the total amount of the composition, of one or more polyethylene glycols and/or polypropylene glycols and b) from 0.01 to 10% by weight, based on the total amount of the composition, of one more carboxamides and/or sulfonamides are useful for inhibiting corrosion in the case of magnesium and magnesium alloys.
Public/Granted literature
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