Patents by Inventor Sundaram Logaraj

Sundaram Logaraj 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).

  • Asphalt modifiers for “warm mix” applications including adhesion promoter
    Patent number: 8840717
    Abstract: The present invention generally relates to an additive package for warm-mix asphalt formulations for the pavement of road surfaces, said additive package comprising a) surfactant component, and b) an asphalt rheology modifying component, wherein said asphalt rheology modifying component comprises at least one of a i) a wax component and ii) a resin component. The invention also relates to a warm mix asphalt having improved compaction at lower temperatures, and to a pavement made from said warm mix asphalt.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: September 23, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Premnathan Naidoo, Sundaram Logaraj, Alan Duncan James
  • Adhesion and cohesion modifiers for asphalt
    Patent number: 8741052
    Abstract: The present invention relates to a bitumen or asphalt formulation for the pavement of road surfaces, said formulation comprising a mixture of bitumen and aggregates, and an additive package evenly distributed therein, said additive package comprising from about i) 10 to 60% by weight of an amine or modified amine surfactant, ii) from about 20 to 90% of an asphalt rheology modifying component.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: June 3, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Premnathan Naidoo, Sundaram Logaraj, Alan Duncan James
  • Asphalt modifiers for "warm mix" applications including adhesion promoter
    Publication number: 20130239850
    Abstract: The present invention generally relates to an additive package for warm-mix asphalt formulations for the pavement of road surfaces, said additive package comprising a) surfactant component, and b) an asphalt rheology modifying component, wherein said asphalt rheology modifying component comprises at least one of a i) a wax component and ii) a resin component. The invention also relates to a warm mix asphalt having improved compaction at lower temperatures, and to a pavement made from said warm mix asphalt.
    Type: Application
    Filed: May 2, 2013
    Publication date: September 19, 2013
    Applicant: AKZO NOBEL N.V.
    Inventors: Premnathan NAIDOO, Sundaram LOGARAJ, Alan Duncan JAMES
  • Asphalt modifiers for “warm mix” applications including adhesion promoter
    Patent number: 8440011
    Abstract: The present invention generally relates to an additive package for warm-mix asphalt formulations for the pavement of road surfaces, said additive package comprising a) surfactant component, and b) an asphalt rheology modifying component, wherein said asphalt rheology modifying component comprises at least one of a i) a wax component and ii) a resin component. The invention also relates to a warm mix asphalt having improved compaction at lower temperatures, and to a pavement made from said warm mix asphalt.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: May 14, 2013
    Assignee: Akzo Nobel N.V.
    Inventors: Premnathan Naidoo, Sundaram Logaraj, Alan Duncan James
  • Adhesion and cohesion modifiers for asphalt
    Patent number: 8404037
    Abstract: The present invention relates to a bitumen or asphalt formulation for the pavement of road surfaces, said formulation comprising a mixture of bitumen and aggregates, and an additive package evenly distributed therein, said additive package comprising from about i) 10 to 60% by weight of an amine or modified amine surfactant, ii) from about 20 to 90% of an asphalt rheology modifying component.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: March 26, 2013
    Assignee: Akzo Nobel N.V.
    Inventors: Premnathan Naidoo, Sundaram Logaraj, Alan Duncan James
  • Adhesion and cohesion modifiers for asphalt
    Patent number: 8377189
    Abstract: The present invention relates to a bitumen or asphalt formulation for the pavement of road surfaces, said formulation comprising a mixture of bitumen and aggregates, and an additive package evenly distributed therein, said additive package comprising from about i) 10 to 60% by weight of an amine or modified amine surfactant, ii) from about 20 to 90% of an asphalt rheology modifying component.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: February 19, 2013
    Assignee: Akzo Nobel N.V.
    Inventors: Premnathan Naidoo, Sundaram Logaraj, Alan Duncan James
  • Asphalt modifiers for "warm mix" applications including adhesion promoter
    Publication number: 20100319577
    Abstract: The present invention generally relates to an additive package for warm-mix asphalt formulations for the pavement of road surfaces, said additive package comprising a) surfactant component, and b) an asphalt rheology modifying component, wherein said asphalt rheology modifying component comprises at least one of a i) a wax component and ii) a resin component. The invention also relates to a warm mix asphalt having improved compaction at lower temperatures, and to a pavement made from said warm mix asphalt.
    Type: Application
    Filed: November 11, 2008
    Publication date: December 23, 2010
    Applicant: Akzo Nobel N.V.
    Inventors: Premnathan Naidoo, Sundaram Logaraj, Alan Duncan James
  • ADHESION AND COHESION MODIFIERS FOR ASPHALT
    Publication number: 20100199885
    Abstract: The present invention relates to a bitumen or asphalt formulation for the pavement of road surfaces, said formulation comprising a mixture of bitumen and aggregates, and an additive package evenly distributed therein, said additive package comprising from about i) 10 to 60% by weight of an amine or modified amine surfactant, ii) from about 20 to 90% of an asphalt rheology modifying component.
    Type: Application
    Filed: July 24, 2008
    Publication date: August 12, 2010
    Applicant: AKZO NOBEL N.V.
    Inventors: Premnathan Naidoo, Sundaram Logaraj, Alan Duncan James
  • Petroleum hydrocarbon in water colloidal dispersion
    Patent number: 6194472
    Abstract: A composition of a hydrocarbon in water colloidal dispersion including hydrocarbon particles having a mean softening point exceeding 95° C., a water soluble dispersion agent and water, process and apparatus for the production thereof are disclosed. These dispersions have a median particle size below about 4.5 microns and 90% of the hydrocarbon particles have a size less than about 60 microns. These dispersions are storage stable, stable towards transportation, and can be pumped without destabilizing.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: February 27, 2001
    Assignee: Akzo Nobel N.V.
    Inventors: Sundaram Logaraj, Thomas J. Ernzen, Moon-Sun Lin, Antonio C. Ng, Todd Lesley Hays, Calvin Lynn Stegemoeller, Li Feng, Mark Aldrich Stroder
  • Fuel comprising a petroleum hydrocarbon in water colloidal dispersion
    Patent number: 6113659
    Abstract: A fuel composition comprising a hydrocarbon in water colloidal dispersion including spherical hydrocarbon particles having a mean softening point exceeding about 95.degree. C., and a water soluble dispersion agent comprising a surfactant and stabilizer. The process for the production thereof is disclosed. These dispersions have a median particle size below about 4.5 microns and about 90% of the particles have a mean particle size diameter less than about 60 microns. These dispersions are storage stable, stable towards transportation, and can be pumped and passed through a burner apparatus without destabilizing.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: September 5, 2000
    Assignee: Akzo Nobel nv
    Inventors: Sundaram Logaraj, Thomas J. Ernzen, Antonio Chan Ng, Mark Aldrich Stroder, Stephen J. DeCanio, Ronald J. McKeon, Shailaja M. Shirodkar