Patents by Inventor Paul S. Palumbo

Paul S. Palumbo 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).

  • Ink compositions
    Patent number: 9790385
    Abstract: Polyurethanes containing at least one bisphosphonate group, as well as related compositions, articles, and methods, are disclosed.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: October 17, 2017
    Assignee: Cabot Corporation
    Inventors: Jinqi Xu, Paul S. Palumbo
  • Modified colorants and inkjet ink compositions comprising modified colorants
    Patent number: 9732227
    Abstract: The present invention relates to a modified colorant comprising a colorant having attached at least one organic group. Various embodiments of the organic group are disclosed. For each of these embodiments, preferably the organic group has a defined calcium index value. Also disclosed are various uses for these modified colorants, including inkjet ink compositions.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: August 15, 2017
    Assignee: Cabot Corporation
    Inventors: Feng Gu, James A. Belmont, Elizabeth G. Burns, Paul S. Palumbo, Barry B. Corden, Yuan Yu, Ervina Halim
  • INKJET INK COMPOSITIONS
    Publication number: 20170137650
    Abstract: Disclosed herein inkjet ink compositions comprising: (a) a carbon black having the following properties: OAN?170 mL/100 g; and STSA ranging from 160 to 220 m2/g; (b) at least one polymeric dispersant selected from polyoxyethylene / polyoxypropylene block copolymers, styrene-acrylic resins, styrene-methacrylic resins, styrene-maleic acid copolymers, and styrene- maleic anhydride copolymers; (c) at least one surfactant selected from ethoxylated siloxanes, succinic acid esters, and succinic acid salts; and (d) at least one polyurethane.
    Type: Application
    Filed: November 17, 2016
    Publication date: May 18, 2017
    Inventors: Tianqi Liu, Robert J. Anderson, Jinqi Xu, Jodi A. Bates, Paul S. Palumbo
  • Modified Colorants and Inkjet Ink Compositions Comprising Modified Colorants
    Publication number: 20160075880
    Abstract: The present invention relates to a modified colorant comprising a colorant having attached at least one organic group. Various embodiments of the organic group are disclosed. For each of these embodiments, preferably the organic group has a defined calcium index value. Also disclosed are various uses for these modified colorants, including inkjet ink compositions.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 17, 2016
    Inventors: Feng Gu, James A. Belmont, Elizabeth G. Burns, Paul S. Palumbo, Barry B. Corden, Yuan Yu, Ervina Halim
  • INK COMPOSITIONS
    Publication number: 20150315393
    Abstract: Polyurethanes containing at least one bisphosphonate group, as well as related compositions, articles, and methods, are disclosed.
    Type: Application
    Filed: July 13, 2015
    Publication date: November 5, 2015
    Inventors: Jinqi Xu, Paul S. Palumbo
  • Ink compositions
    Patent number: 9109128
    Abstract: Polyurethanes containing at least one bisphosphonate group, as well as related compositions, articles, and methods, are disclosed.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: August 18, 2015
    Assignee: Cabot Corporation
    Inventors: Jinqi Xu, Paul S. Palumbo
  • Modified colorants and inkjet ink compositions comprising modified colorants
    Patent number: 8858695
    Abstract: The present invention relates to a modified colorant comprising a colorant having attached at least one organic group. Various embodiments of the organic group are disclosed. For each of these embodiments, preferably the organic group has a defined calcium index value. Also disclosed are various uses for these modified colorants, including inkjet ink compositions.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: October 14, 2014
    Assignee: Cabot Corporation
    Inventors: Feng Gu, James A. Belmont, Elizabeth G. Burns, Paul S. Palumbo, Barry B. Corden, Yuan Yu, Ervina Halim
  • CORE-SHELL POLYMERIC MATERIALS
    Publication number: 20140275395
    Abstract: Disclosed herein are particulate core-shell materials, comprising a core comprising a polyurethane; and a shell comprising a polyacrylate, wherein the shell coats the core. Also disclosed are methods of making particulate core-shell materials, and aqueous dispersions and inkjet ink compositions comprising the same.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 18, 2014
    Applicant: Cabot Corporation
    Inventors: Jinqi Xu, Paul S. Palumbo
  • INK COMPOSITIONS
    Publication number: 20130210999
    Abstract: Polyurethanes containing at least one bisphosphonate group, as well as related compositions, articles, and methods, are disclosed.
    Type: Application
    Filed: October 20, 2011
    Publication date: August 15, 2013
    Applicant: CABOT CORPORATION
    Inventors: Jinqi Xu, Paul S. Palumbo
  • Method of preparing pigment compositions
    Patent number: 8492457
    Abstract: The present invention relates to a method of preparing a pigment composition comprising the steps of combining a polymer and a pigment to form a mixture and heating the mixture to a temperature of between about 70° C. and 250° C. to form the pigment composition. The method may further comprise the step of dispersing the pigment composition in an aqueous medium to form an aqueous pigment dispersion. The pigment compositions and aqueous pigment compositions can be used in an inkjet ink composition, which is also disclosed.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: July 23, 2013
    Assignee: Cabot Corporation
    Inventor: Paul S. Palumbo
  • Modified colorants with aliphatic poly-acid groups
    Patent number: 8021471
    Abstract: Modified colorants which can be pigments or dyes are described wherein the colorant has attached at least one aliphatic poly-acid group. Ink and inkjet ink compositions, formulations, and systems are further described, as well as methods of generating a printed image.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: September 20, 2011
    Assignee: Cabot Corporation
    Inventor: Paul S. Palumbo
  • METHOD OF PREPARING PIGMENT COMPOSITIONS
    Publication number: 20110060098
    Abstract: The present invention relates to a method of preparing a pigment composition comprising the steps of combining a polymer and a pigment to form a mixture and heating the mixture to a temperature of between about 70° C. and 250° C. to form the pigment composition. The method may further comprise the step of dispersing the pigment composition in an aqueous medium to form an aqueous pigment dispersion. The pigment compositions and aqueous pigment compositions can be used in an inkjet ink composition, which is also disclosed.
    Type: Application
    Filed: October 18, 2010
    Publication date: March 10, 2011
    Applicant: CABOT CORPORATION
    Inventor: Paul S. Palumbo
  • Polymers and other groups attached to pigments and subsequent reactions
    Patent number: 7893152
    Abstract: Methods of making a modified pigment by reacting a first chemical group and a second chemical group to form a pigment having attached a third chemical group. The first chemical group includes at least one nucleophile and the second chemical group includes at least one electrophile, or vice versa. Resulting modified pigments, and ink compositions containing such pigments, are also described.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: February 22, 2011
    Assignee: Cabot Corporation
    Inventors: Paul S. Palumbo, Curtis E. Adams
  • Method of preparing a pigment composition
    Publication number: 20090192248
    Abstract: The present invention relates to a method of preparing a pigment composition comprising the steps of combining at least one polyamine, at least one pigment, and at least one polymer having at least one carboxylic acid group or salt thereof. Various embodiments of this method are disclosed. The present invention further relates to a pigment composition and uses thereof, such as inkjet ink compositions.
    Type: Application
    Filed: December 5, 2008
    Publication date: July 30, 2009
    Inventors: Paul S. Palumbo, Dave S. Pope, John Mathew
  • Modified colorants with aliphatic poly-acid groups
    Publication number: 20080083347
    Abstract: Modified colorants which can be pigments or dyes are described wherein the colorant has attached at least one aliphatic poly-acid group. Ink and inkjet ink compositions, formulations, and systems are further described, as well as methods of generating a printed image.
    Type: Application
    Filed: August 27, 2007
    Publication date: April 10, 2008
    Inventor: Paul S. Palumbo
  • Process for preparing modified pigments
    Patent number: 7173078
    Abstract: A process for preparing a modified pigment having attached at least one organic group is described. This process comprises the step of reacting a dried mixture comprising a pigment having attached at least one reactive group and a modifying agent. The dried mixture is reacted under high intensity mixing conditions for a time and temperature sufficient to form the modified pigment.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: February 6, 2007
    Assignee: Cabot Corporation
    Inventors: Melanie G. Lamprey, John Mathew, Paul S. Palumbo
  • Modified pigments and process for preparing modified pigments
    Patent number: 6916367
    Abstract: Processes for preparing modified pigments are described. In one embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiol reagent comprising at least one —SH group and at least two ionic or ionizable groups. In a second embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiopolymer comprising at least one —H group. Modified pigments are also described.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: July 12, 2005
    Assignee: Cabot Corporation
    Inventor: Paul S. Palumbo
  • Modified pigments and process for preparing modified pigments
    Patent number: 6833026
    Abstract: Processes for preparing modified pigments are described. In one embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiol reagent comprising at least one —SH group and at least two ionic or ionizable groups. In a second embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiopolymer comprising at least one —SH group. Modified pigments are also described.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: December 21, 2004
    Assignee: Cabot Corporation
    Inventor: Paul S. Palumbo
  • Polymers and other groups attached to pigments and subsequent reactions
    Publication number: 20040229975
    Abstract: Methods of making a modified pigment by reacting a first chemical group and a second chemical group to form a pigment having attached a third chemical group. The first chemical group includes at least one nucleophile and the second chemical group includes at least one electrophile, or vice versa. Resulting modified pigments, and ink compositions containing such pigments, are also described.
    Type: Application
    Filed: February 27, 2004
    Publication date: November 18, 2004
    Inventors: Paul S. Palumbo, Curtis E. Adams
  • Polymers and other groups attached to pigments and subsequent reactions
    Patent number: 6723783
    Abstract: Methods of making a modified pigment by reacting a first chemical group and a second chemical group to form a pigment having attached a third chemical group. The first chemical group includes at least one nucleophile and the second chemical group includes at least one electrophile, or vice versa. Resulting modified pigments, and ink compositions containing such pigments, are also described.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: April 20, 2004
    Assignee: Cabot Corporation
    Inventors: Paul S. Palumbo, Curtis E. Adams