Patents Assigned to Werner Fluhmann AG
  • Patent number: 4728398
    Abstract: The disadvantages of difficulty in operation of the bath and unfavorable physical properties obtained with the simultaneous deposition of metal and a permanent solid lubricant in electroplating baths of conventional composition and containing solid lubricant particles and a perfluorized compound acting as a cationic tenside are avoided if, instead of the perfluorized compound, the bath contains ##STR1## where A.sub.1 -A.sub.9 is H or an alkyl radical with low C number, R.sub.1 -R.sub.9 is H, OH or an alkyl radical with low C number, X is a halogen or SO.sub.4 and n is the valency of X. Preferred solid lubricants are polytetrafluoroethylene, graphite, graphite fluoride or molybdenumdisulfide.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: March 1, 1988
    Assignee: Werner Fluhmann AG
    Inventors: Jean-Francois Paulet, Jean-Claude Puippe, Heinz Steup