Patents by Inventor Aquiles C. Sobrero

Aquiles C. Sobrero 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).

  • Polymerization of fluoroolefins in presence of non-volatile polymeric seed
    Patent number: 5019632
    Abstract: A free-radical initiated process for preparing fluorinated polymers wherein at least one gaseous fluoroolefin is polymerized in a stirred polymerizer, the improvement comprising preparing a non-volatile polymeric seed in a reaction zone separate from the polymerizer by decomposing initiator in the presence of fluoromonomer to form oligomeric free radicals and condensing said radicals onto previously prepared polymer; and conveying said non-volatile seed to the polymerizer.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: May 28, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edgar W. Slocum, Aquiles C. Sobrero, Robert C. Wheland
  • Polymerization of fluoroolefins
    Patent number: 4861845
    Abstract: The polymerization of fluoromonomers can be accomplished without fouling by using gaseous monomers in the presence of at least one nonvolatile initiator and by recycling the initiator-free polymerizer gases through an external cooler.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: August 29, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edgar W. Slocum, Aquiles C. Sobrero, Robert C. Wheland