Patents by Inventor Tiberiu Mircea Sielovan

Tiberiu Mircea Sielovan 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).

  • Thermally stable polymers, method of preparation, and articles made therefrom
    Patent number: RE40508
    Abstract: Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: (a) combining at least one resorcinol moiety and at least one catalyst in a mixture of water and at least one organic solvent substantially immiscible with water; and (b) adding to the mixture from (a) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: September 16, 2008
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Daniel Joseph Brunelle, Joseph Anthony Suriano, Taeseok Jang, Tiberiu Mircea Sielovan, Edward Pickett, Gregory Allen O'Neil