Patents by Inventor Gerhard Weib

Gerhard Weib 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 concentrates and coolant compositions based on polyglycols and amides for protecting magnesium and the alloys thereof
    Publication number: 20070034825
    Abstract: 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.
    Type: Application
    Filed: March 24, 2004
    Publication date: February 15, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Bernd Wenderoth, Stefan Dambach, Gerhard Weib