Patents by Inventor Olga Puzic

Olga Puzic 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).

  • Mass spectrometric multivariate analysis
    Patent number: 6534318
    Abstract: This invention relates to the selection of a crude oil or crude oil blend for the production of high-performing paving asphalt based on molecular composition of the asphalt and of the parent crude oil or crude oil blend based, at least in part, on high resolution mass spectrometric measurements and relationships to rheological properties.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: March 18, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stilianos George Roussis, Barbara Joanne Shannon, Biddanda Umesh Achia, Olga Puzic
  • Mass spectrometric multivariate analysis
    Publication number: 20020151083
    Abstract: This invention relates to the selection of a crude oil or crude oil blend for the production of high-performing paving asphalt based on molecular composition of the asphalt and of the parent crude oil or crude oil blend based, at least in part, on high resolution mass spectrometric measurements and relationships to rheological properties.
    Type: Application
    Filed: December 13, 2001
    Publication date: October 17, 2002
    Inventors: Stilianos George Roussis, Barbara Joanne Shannon, Biddanda Umesh Achia, Olga Puzic
  • Asphalt compositions and method for making (LAW617)
    Patent number: 6414056
    Abstract: The present invention relates to novel polymer modified asphalt polyphosphoric and superphosphoric acid treated binder compositions having enhanced high service temperature performance properties and the method of making them and to road paving asphalts containing them.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: July 2, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Olga Puzic, Kenneth Edward Williamson
  • Pavement binder and method of making same (LAW441)
    Patent number: 5637141
    Abstract: The present invention provides a method of making storage-stable road paving binders by blending a minor amount of an unsaturated polymer (e.g., having at least one diene monomer) with a major amount of asphalt at an elevated temperature such that the components are sufficiently fluid to blend; treating the asphalt-polymer blend with a sulfonating agent; and stripping the treated asphalt-polymer blend at an elevated temperature with sufficient stripping gas to remove strippable sulfur moieties and to stabilize the resulting stripped, treated blend. The invention also provides asphaltic compositions made by the method. The asphaltic compositions are useful as binders in road paving applications.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: June 10, 1997
    Assignee: Exxon Research & Engineering Company
    Inventors: Olga Puzic, Larry J. Evers, Kenneth E. Williamson, Martin L. Gorbaty, Nicholas C. Nahas, Alain L. Lenack
  • Pavement Binder
    Patent number: 5549744
    Abstract: The present invention provides for a method of making storage stable road paving binders by blending a minor amount of a polymer having at least one diene monomer with a major amount of asphalt containing at least 0.3% by weight of total nitrogen at an elevated temperature such that the components are sufficiently fluid to blend; treating the asphalt-polymer blend using not more than 250 meq of a sulfonating agent per 100 g of asphalt-polymer blend to introduce the corresponding acid functionality into the blend; maintaining the sulfonated asphalt-polymer blend at a sufficiently elevated temperature and stripping the sulfonated blend with sufficient chemically unreactive gas to remove a major fraction of the acid functionality introduced by sulfonation. The invention also provides for the compositions made by the process. These are useful as binders in road paving applications.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: August 27, 1996
    Assignee: Exxon Research and Engineering Company
    Inventors: Olga Puzic, Larry J. Evers, Kenneth E. Williamson, Martin L. Gorbaty, Nicholas C. Nahas