Patents by Inventor Valerie Rousselon

Valerie Rousselon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Antifreeze composition comprising a water-soluble alcohol and a corrosion inhibitor system comprising dicarboxylic acids or salts thereof, diazole and a triazole
    Patent number: 5723061
    Abstract: The present invention relates to an antifreeze composition containing a water-soluble liquid alcohol and a corrosion inhibitor system comprising (a) a mixture of at least two aromatic or aliphatic dicarboxylic acids, or of at least two salts of the said acids, (b) at least one 1,3-diazole chosen from imidazole, benzimidazole, imidazoline and hydrocarbon derivatives thereof, and (c) at least one triazole compound. The aqueous fluids containing the said composition have excellent anticorrosive properties and heat stability over long periods of time, in particular when the fluids are used as heat transfer fluids at temperatures above 150.degree. C.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: March 3, 1998
    Assignee: BP Chemicals Limited
    Inventors: Claude Ciardi, Valerie Rousselon