The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2004
Filed:
Jul. 03, 2002
Jean-Pierre Maes, Merelbeke, BE;
Peter Roose, Sint-Martens-Latem, BE;
Other;
Abstract
An aqueous fluid composition having a C -C carboxylic acid salt and a C -C carboxylic acid salt is used as a heat transfer fluid that provides improved heat transfer properties and improved corrosion protection. Such properties are desired for fluids used as an antifreeze coolant in automotive engines. The addition of a C -C carboxylic acid further improves corrosion protection. The addition of hydrocarbyl triazoles or thiazoles also further improves corrosion protection. One specific embodiment of the present invention includes a solution of potassium formate, sodium propanoate, and sodium heptanoate in a weight ratio of 20:20:5, respectively, where the pH of the solution is between 8 and 9.5.