Patents by Inventor Nicolas J. Probst

Nicolas J. Probst 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).

  • Recording disc compositions comprising polymers of monovinyl-substituted hydrocarbons, conductive carbon black and lubricants
    Patent number: 4412941
    Abstract: Electrically-conductive compositions comprising about 65-85 weight percent of a resin component based on conjugated alkadienes having 4 to 8 carbon atoms and monovinyl-substituted arenes having 8 to 12 carbon atoms, with 10-30 weight percent extra-conductive carbon black, and about 1 to 5 weight percent of at least one lubricant can be molded into video discs without the processing problems encountered with compositions comprising polyvinyl chloride.
    Type: Grant
    Filed: October 22, 1981
    Date of Patent: November 1, 1983
    Assignee: Phillips Petroleum Company
    Inventors: Nicolas J. Probst, Jean Iker, Jacques Autin