Patents by Inventor E. Scudder Mackey

E. Scudder Mackey 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).

  • Patent number: 4275147
    Abstract: The susceptibility of polymeric film supports or polymeric coated paper to the accumulation of static electric charges can be greatly lessened by coating or swabbing such support or the uncoated side of a finished photographic film and paper with a polyfunctional anionic oligomeric surfactant or the alkali metal salt thereof, of the formula: ##STR1## wherein R is an alkyl radical of 6-12 carbon atoms, R.sub.1 is H or methyl and a+b is from 4-50.
    Type: Grant
    Filed: July 11, 1980
    Date of Patent: June 23, 1981
    Assignee: GAF Corporation
    Inventors: E. Scudder Mackey, Karl Pechmann
  • Patent number: 4175969
    Abstract: This invention relates to photographic elements having a coatable, non-photoactive protective surface of improved antistatic properties. The improvement is accomplished by incorporation into this layer of an anionic fluorocarbon surfactant which is characterized by being low molecular weight oligomers of tetrafluoroethylene. In a preferred embodiment of the invention, a gelatin surface protective layer of an X-ray film includes about 1.0-3.5% by weight, based on the gelatin solids of the layer, of oligomers of tetrafluoroethylene having a large amount of hydrophilic fluoroalkyl branching in the fluorocarbon chain.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: November 27, 1979
    Assignee: GAF Corporation
    Inventor: E. Scudder Mackey
  • Patent number: 3933516
    Abstract: A photographic element or film, such as photographic or medical X-ray film, having improved antistatic and slippage properties can be prepared by applying to said element or film a protective surface containing a calcium stearate dispersion and stearamido-propyl dimethyl-beta-hydroxy-ethyl ammonium nitrate.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: January 20, 1976
    Assignee: GAF Corporation
    Inventor: E. Scudder Mackey