Patents by Inventor Edward Andrew Wielicki

Edward Andrew Wielicki 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).

  • Regenerated cellulose film recovery process
    Patent number: 4098996
    Abstract: Waste raw uncoated and/or coated (such as saran, nitrocellulose and vinyl) regenerated cellulose film is treated to recover its plasticizer and cellulose components for recycling in the manufacture of regenerated cellulose film. The platicizer is first recovered from comminuted waste film particles via extraction with water. The moist comminuted film particles are then converted to viscose, from which coating solids, if any, are removed. The viscose is thereafter employed in the manufacture of regenerated cellulose film.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: July 4, 1978
    Assignee: FMC Corporation
    Inventors: Daniel John Ryan, Edward Andrew Wielicki