Patents by Inventor Jorge A. Ayala

Jorge A. Ayala 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).

  • Patent number: 7847009
    Abstract: The present invention claims that a carbon black with unique morphological properties provides improved carbon black dispersion and improved rubber compound properties, such as improved fatigue life and abrasion resistance. The carbon black of current invention has a ratio of aggregate size HI and particle size HI greater than 1.70, the surface area STSA of 100-180 M2/g and the structure OAN less than 140 cc/100 g.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: December 7, 2010
    Assignee: Columbian Chemicals Company
    Inventors: Weidong Wong, Charles R. Herd, Jorge A. Ayala
  • Publication number: 20090247686
    Abstract: A carbon black with a ?D50/M greater than about 0.9. The carbon black has an aggregate heterogeneity index (HI) via QTM of greater than about 2.3. The carbon black has a ?D50 via DCP of greater than about 0.07. The QTM-HI of the present carbon black is unique for N100-200 series carbon blacks, as is the ?D50. The carbon black is a N200 carbon black with an oil absorption number (OAN) less than about 135 and a HI of greater than about 2.3. The carbon black is also a N200 carbon black with an oil absorption number (OAN) less than about 135 and a ?D50 of greater than about 0.07. The present invention also relates to a polymeric composition and to tires comprising a carbon black of the present invention.
    Type: Application
    Filed: June 28, 2007
    Publication date: October 1, 2009
    Inventors: Weidong Wang, Charles R. Herd, Jorge A. Ayala
  • Publication number: 20090163617
    Abstract: The present invention claims that a carbon black with unique morphological properties provides improved carbon black dispersion and improved rubber compound properties, such as improved fatigue life and abrasion resistance. The carbon black of current invention has a ratio of aggregate size HI and particle size HI greater than 1.70, the surface area STSA of 100-180 M2/g and the structure OAN less than 140 cc/100 g.
    Type: Application
    Filed: November 17, 2008
    Publication date: June 25, 2009
    Applicant: Columbian Chemicals Company (a Delaware Corporation)
    Inventors: Weidong WONG, Charles R. Herd, Jorge A. Ayala
  • Patent number: 7238741
    Abstract: A carbon black with a ?D50/M greater than about 0.9 was produced. The carbon black has an aggregate heterogeneity index (HI) via QTM of greater than about 2.3. The carbon black has a ?D50 via DCP of greater than about 0.07 ?m. The QTM-HI of the present carbon black is unique for N100-200 series carbon blacks, as is the ?D50. The carbon black is a N200 carbon black with an oil absorption number (OAN) less than about 135 ml/100 g and a HI of greater than about 2.3. The carbon black is also a N200 carbon black with an oil absorption number (OAN) less than about 135 ml/100 g and a ?D50 of greater than about 0.07 ?m. The present invention also relates to a polymeric composition and to tires comprising a carbon black of the present invention.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: July 3, 2007
    Assignee: Columbian Chemicals Company
    Inventors: Weidong Wang, Charles R. Herd, Jorge A. Ayala
  • Patent number: 4952617
    Abstract: A pigment dispersion of enhanced viscosity and heat stability characteristics for use in coating systems is provided. The pigment dispersions generally comprise a pigment carrier, a pigment of the type having a hydrophilic surface, and a surfactant functional as a dispersant in a relatively non polar matrix and which is present on the surface of the pigment in an effective amount. Pigment carriers include water-based carriers and organic solvent-based carriers. Finished coatings having improved viscosity and heat stability are also provided. The finished coatings comprise a coating base and the surfactant treated pigments. Such pigments include iron oxide pigments yellow iron oxide pigment, black iron oxide pigment, divalent ferrite pigments, zinc ferrite pigment, and magnesium ferrite pigment. Such surfactants include trimethylol propane, and trimethylol ethane.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: August 28, 1990
    Assignee: Columbian Chemicals Company
    Inventors: Jorge A. Ayala, George A. Joyce
  • Patent number: 4798856
    Abstract: There is provided a pigment concentrate dispersible in plastics and having a substantially improved characteristic extrusion screen life, comprising a dispersion in a resin carrier of an inorganic pigment of the type having a hydrophilic surface, having on its surface in an effective amount a surfactant of the type characterized by an attached polar terminus, in relation to the surface of the pigment, and an unattached nonpolar terminus, in relation to the carrier resin, or of the type characterized by a high molecular weight surface blocking agent. Such pigments include iron oxide pigments, red iron oxide pigment, yellow iron oxide pigment, black iron oxide pigment, divalent ferrite pigments, zinc ferrite pigment, and magnesium ferrite pigment. Such surfactants include dimethyl polysiloxane, isopropyl triisostearoyl titanate, trimethylol propane, trimethylol ethane, and low molecular weight polyethylene.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: January 17, 1989
    Assignee: Columbian Chemicals Co.
    Inventors: Jorge A. Ayala, George A. Joyce, David Crabbe
  • Patent number: D323460
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: January 28, 1992
    Assignee: American Safety Razor Company
    Inventors: Jorge A. Ayala, Julio A. Chez, Jose E. Lopez