Patents by Inventor David J. Kaul

David J. Kaul 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: 6156837
    Abstract: A process for producing carbon blacks comprised of mixing an oxidant, primary fuel, and carbon black feedstock to form carbon black particles and aggregates, passing the mixture through a reactor, cooling, separating, and recovering the carbon black product. The improvement comprises the addition of a secondary oxidant-containing stream to the reactor such that the secondary oxidant stream does not interfere with the formation of the carbon black particles and aggregates in the reactor. Also disclosed are new carbon black products defined by the following parameters:35 mg/g.ltoreq.I.sub.2 No..ltoreq.65 mg/g30 m.sup.2 g.ltoreq.CTAB.ltoreq.55 m.sup.2 g1.12 mg/m.sup.2 .ltoreq.I.sub.2 No./CTAB ratioTint.ltoreq.65%75 cc/100 g.ltoreq.CDBP.ltoreq.95 cc/100 gAlso disclosed are rubber and/or plastic compositions containing the new carbon blacks.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: December 5, 2000
    Assignee: Cabot Corporation
    Inventors: John M. Branan, Jr., Bin Chung, Frank J. Hrach, Jr., Ronald C. Hurst, David J. Kaul, Sergio A. Montes, William L. Sifleet, Daniel W. Weaver, Jay Zimmer
  • Patent number: 6107350
    Abstract: New gel conpositions which comprise a carbonaceous component attached to a gel component. Preferably, the corbonaceous component is selected from the group consisting of: carbon blacks, carbon fibers, activated carbons and graphitic carbons; and the gel component is selected from the group consisting of: metal oxide gels and polymeric gels. Also disclosed are new gel composition comprising: a gel component and a carbon black product having attached at least one organic group, the organic group comprising: a) at least one aromatic group, and b) at least one ionic group, at least one ionizable group, or a mixture of an ionic group and an ionizable group, wherein at least one aromatic group of the organic group is directly attached to the carbon black. Further disclosed are new gel compositon comprising: a gel component and a carbon black product having attached at least one organic group, the organic group comprising: a) at least one C.sub.1 -C.sub.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: August 22, 2000
    Assignee: Cabot Corporation
    Inventors: Ralph Ulrich Boes, James A. Belmont, David J. Kaul, Douglas M. Smith, William C. Ackerman
  • Patent number: 6071486
    Abstract: A for producing metal oxide and/or organo-metal oxide compositions from metal oxide and organo-metal oxide precursors utilizing a rate modifying drying agent. The process allows metal oxide and/or organo-metal oxide compositions to be produced from a wide variety of metal oxide and organo-metal oxide precursors including metal halides and organometallic halides.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: June 6, 2000
    Assignee: Cabot Corporation
    Inventors: Kenneth C. Koehlert, Douglas M. Smith, William C. Ackerman, Stephen Wallace, David J. Kaul
  • Patent number: 5936021
    Abstract: A free-flowing, powdery masterbatch including a metal oxide, having a material that is absorbed within the intra-aggregate void space of the metal oxide and a resin system incorporating same are disclosed. The material that is absorbed within the intra-aggregate void space of the metal oxide is selected from, but not limited to, organic materials and polyorganosiloxanes (commonly referred to as silicones). The organic materials, whether monomeric, polymeric, or elastomeric, more preferably include, but are not limited to, acrylics, alkyds, epoxies, formaldehydes, glycols, polyamides, polyesters, polyethers, polyimides, polyolefins, polyols, polysulfides, polyvinyl acetate, polyurethanes, silicones, or mixtures thereof. The polyorganosiloxanes may include various functional groups, for example methyl, phenyl, vinyl, trifluoro, chloro and combinations thereof. The metal oxide is selected from the group consisting of silica, alumina, ceria, titania, zirconia and mixtures thereof.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: August 10, 1999
    Assignee: Cabot Corporation
    Inventors: Darrel A. Bryant, David J. Kaul
  • Patent number: 5928723
    Abstract: A process for producing surface modified metal oxide and/or organo-metal oxide compositions comprising esterifying at least a portion of the metal oxide and/or organo-metal oxide composition through contact with at least one esterification agent and at least one catalyst wherein the esterification agent and the catalyst are in the liquid phase. The process may be utilized to produce hydrophobic metal oxide and/or organo-metal oxide compositions at ambient temperature and/or ambient pressure conditions.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: July 27, 1999
    Assignee: Cabot Corporation
    Inventors: Kenneth C. Koehlert, Douglas M. Smith, William C. Ackerman, Stephen Wallace, David J. Kaul
  • Patent number: 5879650
    Abstract: A method for increasing the aggregate size and structure of carbon blacks produced by a furnace carbon black reactor by lowering the temperature of, but not stopping pyrolysis in, the effluent (the mixture of combustion gases and feedstock in which pyrolysis is occurring), preferably up to about 800 degrees F., at a residence time between about 0.0 second and about 0.002 second downstream from the furthest downstream point of injection of feedstock.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: March 9, 1999
    Assignee: Cabot Corporation
    Inventors: David J. Kaul, William L. Sifleet, Gregory T. Gaudet, William M. Porteous, Allan C. Morgan
  • Patent number: 5807494
    Abstract: New gel compositions which comprise a carbonaceous component attached to a gel component. Preferably, the carbonaceous component is selected from the group consisting of: carbon blacks, carbon fibers, activated carbons and graphitic carbons; and the gel component is selected from the group consisting of: metal oxide gels and polymeric gels. .quadrature. Also disclosed are new gel compositions comprising: a gel component and a carbon black product having attached at least one organic group, the organic group comprising: a) at least one aromatic group, and b) at least one ionic group, at least one ionizable group, or a mixture of an ionic group and an ionizable group, wherein at least one aromatic group of the organic group is directly attached to the carbon black. Further disclosed are new gel compositions comprising: a gel component and a carbon black product having attached at least one organic group, the organic group comprising: a) at least one C.sub.1 -C.sub.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: September 15, 1998
    Inventors: Ralph Ulrich Boes, James A. Belmont, David J. Kaul, Douglas M. Smith, William C. Ackerman
  • Patent number: 5589531
    Abstract: This disclosure relates to a process for preparing co-pelletized submicron pigment powder/polymer pellets in a dry drum pelletizing process using a thermoplastic polymer as seed pellets. Also disclosed is a process for using the co-pelletized product either for formation of masterbatch or for directly introducing at least one pigment into thermoplastic media.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: December 31, 1996
    Assignee: Cabot Corporation
    Inventors: Jameel Menashi, Robert C. Reid, Robert S. Whitehouse, David J. Kaul
  • Patent number: 5211932
    Abstract: A carbon black process control system measures input variables such as feedstock flow rate, feedstock quality, air flow rate, air humidity, air temperature, fuel flow rate, fuel quality, and/or potassium additive solution flow rate at spaced intervals while the carbon black reactor is operating. Then, at spaced intervals in time one or more output variables of the carbon black, such as iodine number and/or DBP, are predicted in accordance with a prediction algorithm based on the values of the measured input variables. Then, at spaced intervals in time the predicted values of the output variables, such as iodine number and/or DBP, are averaged. Based on the average values of the predicted output variables, one or more input variables are then adjusted to achieve goal values of the predicted output variables, and thus obtain carbon black of substantially consistent quality.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: May 18, 1993
    Assignee: Cabot Corporation
    Inventors: Charles R. Blaylock, Melvin C. Dennis, David J. Kaul, James L. Rice, Thomas L. Weaver