Patents Examined by Peter P. Mulcahy
  • Patent number: 5166251
    Abstract: A corrosive resistant coating with deep drawability characteristics which is applied to a metal substrate as a wet film and then heated to dry and initiate curing to provide a protective coating tenaciously bonded to the substrate. The composition has a corrosion inhibiting powder metal, a drawing agent of polytetrafluorethylene (PTFE), a primary bonding resin, and a vehicle of solvents. Preferably, the coating composition also has a secondary organic resin and thixotropic, metal suspension and hydroscopic agents. The cured coating composition on a metal substrate, in most instances, eliminates the needs for additional die drawing compounds when deep cold drawing the coated metal substrate.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: November 24, 1992
    Assignee: Depor Industries, Inc.
    Inventors: L. Donald Barrett, Burkhard Flamme, Dale R. Hahn, Peter E. Pelloski
  • Patent number: 4935230
    Abstract: A novel hair waving agent comprises as its main ingredient a thioglyceryl alkyl ether or 1-phenyl-2-mercaptoethanol. The agent has low irritativeness and the good capability of wave formation.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: June 19, 1990
    Assignee: KAO Corporation
    Inventors: Sachio Naito, Kumi Oshima