Patents Assigned to Witco Corporaton
  • Overbased sulfonates combined with petroleum oxidates for metal forming
    Patent number: 5439602
    Abstract: Compositions of matter comprising petroleum oxidate having a total acid number no greater than 35, and overbased calcium sulfonate having a total base number of at least about 150 and a strong total base number less than 10, which are free of or contain no more than trace amounts of carboxylic acids containing 8 or fewer carbon acids, are oil-soluble, non-gelling, and useful in metalworking compositions imparting lubricity and corrosion protection.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: August 8, 1995
    Assignee: Witco Corporaton
    Inventors: Alan D. Eckard, Igor Riff