Patents by Inventor Heather E. Clarke

Heather E. Clarke 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: 11427557
    Abstract: Disclosed herein are compositions (e.g.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: August 30, 2022
    Assignee: Cabot Corporation
    Inventors: Alexander I. Shakhnovich, Heather E. Clarke
  • Publication number: 20220010152
    Abstract: Disclosed herein are polymers, which can be incorporated in pigment dispersions and inkjet ink compositions, comprising first monomers selected from ethylenically unsaturated hydrophobic monomers, and second monomers selected from maleic anhydride, maleic acid, and salts, esters, imides, and amides thereof. The polymers can have a portion of the second monomers functionalized with at least one organic group having a calcium index value greater than or equal to a calcium index value of phenylphosphonic acid. Additionally and/or alternatively, the at least one polymer can be crosslinked via the second monomers. Dispersions and inkjet ink compositions comprising such polymers can also further comprise at least one pigment and a liquid vehicle. Also disclosed are methods of making such polymers.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Inventors: Jinqi Xu, Paul S. Palumbo, Andrea Lebed, Heather E. Clarke, Alexander I. Shakhnovich, Tianqi Liu
  • Patent number: 10954402
    Abstract: Disclosed herein are inkjet ink compositions comprising: at least one pigment and at least one polyurethane comprising: at least one polypropylene glycol, and at least one diisocyanate. The at least one polyurethane contains at least 70 wt % polypropylene glycol relative to the at least one polyurethane and has a weight average molecular weight (Mw) of no more than 80,000.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 23, 2021
    Assignee: Cabot Corporation
    Inventors: Jinqi Xu, Jodi A. Bates, Heather E. Clarke, Tianqi Liu, Paul S. Palumbo
  • Publication number: 20200377470
    Abstract: Disclosed herein are compositions (e.g.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Inventors: Alexander I. Shakhnovich, Heather E. Clarke
  • Publication number: 20190161631
    Abstract: Disclosed herein are polymers, which can be incorporated in pigment dispersions and inkjet ink compositions, comprising first monomers selected from ethylenically unsaturated hydrophobic monomers, and second monomers selected from maleic anhydride, maleic acid, and salts, esters, imides, and amides thereof. The polymers can have a portion of the second monomers functionalized with at least one organic group having a calcium index value greater than or equal to a calcium index value of phenylphosphonic acid. Additionally and/or alternatively, the at least one polymer can be crosslinked via the second monomers. Dispersions and inkjet ink compositions comprising such polymers can also further comprise at least one pigment and a liquid vehicle. Also disclosed are methods of making such polymers.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Inventors: Jinqi Xu, Paul S. Palumbo, Andrea Lebed, Heather E. Clarke, Alexander I. Shaknovich, Tianqi Liu
  • Patent number: 10233342
    Abstract: Disclosed herein are polymers, which can be incorporated in pigment dispersions and inkjet ink compositions, comprising first monomers selected from ethylenically unsaturated hydrophobic monomers, and second monomers selected from maleic anhydride, maleic acid, and salts, esters, imides, and amides thereof. The polymers can have a portion of the second monomers functionalized with at least one organic group having a calcium index value greater than or equal to a calcium index value of phenylphosphonic acid. Additionally and/or alternatively, the at least one polymer can be crosslinked via the second monomers. Dispersions and inkjet ink compositions comprising such polymers can also further comprise at least one pigment and a liquid vehicle. Also disclosed are methods of making such polymers.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: March 19, 2019
    Assignee: Cabot Corporation
    Inventors: Jinqi Xu, Paul S. Palumbo, Andrea Lebed, Heather E. Clarke, Alexander I. Shaknovich, Tianqi Liu
  • Publication number: 20190071580
    Abstract: Disclosed herein are inkjet ink compositions comprising: at least one pigment and at least one polyurethane comprising: at least one polypropylene glycol, and at least one diisocyanate. The at least one polyurethane contains at least 70 wt % polypropylene glycol relative to the at least one polyurethane and has a weight average molecular weight (Mw) of no more than 80,000.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 7, 2019
    Inventors: Jinqi Xu, Jodi A. Bates, Heather E. Clarke, Tianqi Liu, Paul S. Palumbo
  • Patent number: 10138388
    Abstract: Disclosed herein are polymers, which can be incorporated in pigment dispersions and inkjet ink compositions, comprising first monomers selected from ethylenically unsaturated hydrophobic monomers, and second monomers selected from maleic anhydride, maleic acid, and salts, esters, imides, and amides thereof. The polymers can have a portion of the second monomers functionalized with at least one organic group having a calcium index value greater than or equal to a calcium index value of phenylphosphonic acid. Additionally and/or alternatively, the at least one polymer can be crosslinked via the second monomers. Dispersions and inkjet ink compositions comprising such polymers can also further comprise at least one pigment and a liquid vehicle. Also disclosed are methods of making such polymers.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: November 27, 2018
    Assignee: Cabot Corporation
    Inventors: Jinqi Xu, Paul S. Palumbo, Andrea Lebed, Heather E. Clarke, Alexander I. Shaknovich, Tianqi Liu
  • Publication number: 20180230322
    Abstract: Disclosed herein are polymers, which can be incorporated in pigment dispersions and inkjet ink compositions, comprising first monomers selected from ethylenically unsaturated hydrophobic monomers, and second monomers selected from maleic anhydride, maleic acid, and salts, esters, imides, and amides thereof. The polymers can have a portion of the second monomers functionalized with at least one organic group having a calcium index value greater than or equal to a calcium index value of phenylphosphonic acid. Additionally and/or alternatively, the at least one polymer can be crosslinked via the second monomers. Dispersions and inkjet ink compositions comprising such polymers can also further comprise at least one pigment and a liquid vehicle. Also disclosed are methods of making such polymers.
    Type: Application
    Filed: April 11, 2018
    Publication date: August 16, 2018
    Inventors: Jinqi Xu, Paul S. Palumbo, Andrea Lebed, Heather E. Clarke, Alexander I. Shaknovich, Tianqi Liu
  • Publication number: 20180118963
    Abstract: Disclosed herein are polymers, which can be incorporated in pigment dispersions and inkjet ink compositions, comprising first monomers selected from ethylenically unsaturated hydrophobic monomers, and second monomers selected from maleic anhydride, maleic acid, and salts, esters, imides, and amides thereof. The polymers can have a portion of the second monomers functionalized with at least one organic group having a calcium index value greater than or equal to a calcium index value of phenylphosphonic acid. Additionally and/or alternatively, the at least one polymer can be crosslinked via the second monomers. Dispersions and inkjet ink compositions comprising such polymers can also further comprise at least one pigment and a liquid vehicle. Also disclosed are methods of making such polymers.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 3, 2018
    Inventors: Jinqi Xu, Paul S. Palumbo, Andrea Lebed, Heather E. Clarke, Alexander I. Shaknovich, Tianqi Liu
  • Patent number: 9896583
    Abstract: Disclosed herein are high structured carbon blacks, methods of synthesis and treatment, and dispersions and inkjet ink formulations prepared therefrom. The carbon black can have the following properties: OAN?170 mL/100 g; and STSA ranging from 160 to 220 m2/g. The carbon black can also have the following properties: OAN?170 mL/100 g; and a ratio of STSA/BET surface area ranging from 0.7 to 1.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: February 20, 2018
    Assignee: Cabot Corporation
    Inventors: Andrew P. Dikan, Stephane F. Rouanet, Heather E. Clarke, Bruce E. MacKay, Danny Pierre
  • Publication number: 20160355686
    Abstract: Disclosed herein are high structured carbon blacks, methods of synthesis and treatment, and dispersions and inkjet ink formulations prepared therefrom. The carbon black can have the following properties: OAN?170 mL/100 g; and STSA ranging from 160 to 220 m2/g. The carbon black can also have the following properties: OAN?170 mL/100 g; and a ratio of STSA/BET surface area ranging from 0.7 to 1.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 8, 2016
    Inventors: Andrew P. Dikan, Stephane F. Rouanet, Heather E. Clarke, Bruce E. MacKay, Danny Pierre
  • Patent number: 9388300
    Abstract: Disclosed herein are high structured carbon blacks, methods of synthesis and treatment, and dispersions and inkjet ink formulations prepared therefrom. The carbon black can have the following properties: OAN ?170 mL/100 g; and STSA ranging from 160 to 220 m2/g. The carbon black can also have the following properties: OAN ?170 mL/100 g; and a ratio of STSA/BET surface area ranging from 0.7 to 1.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: July 12, 2016
    Assignee: Cabot Corporation
    Inventors: Andrew P. Dikan, Stephane F. Rouanet, Heather E. Clarke, Bruce E. MacKay, Danny Pierre
  • Publication number: 20150259513
    Abstract: Disclosed herein are high structured carbon blacks, methods of synthesis and treatment, and dispersions and inkjet ink formulations prepared therefrom. The carbon black can have the following properties: OAN?170 mL/100 g; and STSA ranging from 160 to 220 m2/g. The carbon black can also have the following properties: OAN?170 mL/100 g; and a ratio of STSA/BET surface area ranging from 0.7 to 1.
    Type: Application
    Filed: May 28, 2015
    Publication date: September 17, 2015
    Inventors: Andrew P. Dikan, Stephane F. Rouanet, Heather E. Clarke, Bruce E. MacKay, Danny Pierre
  • Patent number: 9056991
    Abstract: A composition useful as an inkjet ink is described as well as methods of making the composition. The composition includes a pigment and a polymer and the polymer may include a polyurethane. The composition exhibits properties that make it useful in thermal and piezo inkjet applications.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: June 16, 2015
    Assignee: Cabot Corporation
    Inventor: Heather E. Clarke
  • Patent number: 9056994
    Abstract: Disclosed herein are high structured carbon blacks, methods of synthesis and treatment, and dispersions and inkjet ink formulations prepared therefrom. The carbon black can have the following properties: OAN?170 mL/100 g; and STSA ranging from 160 to 220 m2/g. The carbon black can also have the following properties: OAN?170 mL/100 g; and a ratio of STSA/BET surface area ranging from 0.7 to 1.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: June 16, 2015
    Assignee: Cabot Corporation
    Inventors: Andrew P. Dikan, Stephane F. Rouanet, Heather E. Clarke, Bruce E. MacKay, Danny Pierre
  • Publication number: 20140162064
    Abstract: Disclosed herein are high structured carbon blacks, methods of synthesis and treatment, and dispersions and inkjet ink formulations prepared therefrom. The carbon black can have the following properties: OAN?170 mL/100 g; and STSA ranging from 160 to 220 m2/g. The carbon black can also have the following properties: OAN?170 mL/100 g; and a ratio of STSA/BET surface area ranging from 0.7 to 1.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 12, 2014
    Inventors: Andrew P. Dikan, Stephane F. Rouanet, Heather E. Clarke, Bruce E. MacKay, Danny Pierre
  • Publication number: 20140013996
    Abstract: Disclosed herein are high structured carbon blacks, methods of synthesis and treatment, and dispersions and inkjet ink formulations prepared therefrom. The carbon black can have the following properties: OAN?170 mL/100 g; and STSA ranging from 160 to 220 m2/g. The carbon black can also have the following properties: OAN?170 mL/100 g; and a ratio of STSA/BET surface area ranging from 0.7 to 1.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 16, 2014
    Inventors: Andrew P. Dikan, Stephane F. Rouanet, Heather E. Clarke, Bruce E. MacKay, Danny Pierre
  • Publication number: 20130123426
    Abstract: A composition useful as an inkjet ink is described as well as methods of making the composition. The composition includes a pigment and a polymer and the polymer may include a polyurethane. The composition exhibits properties that make it useful in thermal and piezo inkjet applications.
    Type: Application
    Filed: July 29, 2011
    Publication date: May 16, 2013
    Applicant: CABOT CORPORATION
    Inventor: Heather E. Clarke
  • Publication number: 20100240805
    Abstract: An adhesive composition substantially free of formaldehyde, comprising at least one bio-derived component, at least one multivalent cation and at least one polymer having a crosslinkable group, wherein the polymer having at least one crosslinkable group is substantially free of epichlorohydrin.
    Type: Application
    Filed: September 22, 2009
    Publication date: September 23, 2010
    Inventors: Todd R. Miller, Heather E. Clarke, Lee R. Johnson, Rick A. Porter