Patents by Inventor Rodney David Stramel

Rodney David Stramel 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: 10723897
    Abstract: The present disclosure relates to an inkjet composition comprising a curable polyurethane dispersion and an aqueous carrier.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: July 28, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Rodney David Stramel, Gregg A. Lane
  • Patent number: 10723896
    Abstract: The present disclosure relates to an inkjet printing process that comprises applying a radiation-curable primer composition onto a substrate to form a primer layer. The primer composition comprises a curable polyurethane dispersion, a photoinitiator and water. An inkjet ink composition is inkjet printed onto the primer layer as a printed inkjet ink layer. The inkjet ink composition comprises a colorant, a curable polyurethane dispersion, a photoinitiator and water. The curable polyurethane is dispersed in the inkjet ink composition in an amount of composition is 0.1 to 30 weight % of the inkjet ink composition. The printed inkjet ink layer is cured on the substrate by exposing both the primer layer and printed inkjet ink layer on the substrate to radiation.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: July 28, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Rodney David Stramel, Tao Chen, Bor-Jiunn Niu, Gregg A. Lane
  • Publication number: 20200164661
    Abstract: Herein is disclosed a method of transfer inkjet printing comprising jetting a radiation curable inkjet ink onto an intermediate transfer member of an inkjet printer to form an image; irradiating the radiation curable inkjet ink on the intermediate transfer member to form an at least partially cured image; and transferring the at least partially cured image to a substrate to form a printed substrate. Herein is also disclosed a transfer inkjet printing apparatus adapted, in use, to perform the method.
    Type: Application
    Filed: September 25, 2017
    Publication date: May 28, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Zhang-Lin Zhou, Rodney David Stramel, Gregg A. Lane, Shao-Wei Li, Brian J. Keefe
  • Publication number: 20200148902
    Abstract: The present disclosure is drawn to UV-curable inkjet inks, fluid sets, and printing systems. An example UV-curable inkjet ink can include water, a photo-initiator, from 8 wt % to 25 wt % organic co-solvent, and from 2 wt % to 20 wt % of a polyurethane. The polyurethane can include a polymer strand including a polymer backbone having two ends terminating at first and second capping units. The polymer backbone can be formed of polymerized monomers including a diisocyanate and a reactive diol selected from an acrylate-containing diol or a methacrylate-containing diol. The first capping unit can include an acrylate-containing monoalcohol, a methacrylate-containing monoalcohol, an allyl-containing monoalcohol, an allyl-containing monoamine, a styrene-containing monoalcohol, an acrylamide-containing monoalcohol, or a methacrylamide-containing monoalcohol reacted with an isocyanate group of the diisocyanate.
    Type: Application
    Filed: October 17, 2017
    Publication date: May 14, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: George SARKISIAN, Zhang-Lin ZHOU, Rodney David STRAMEL
  • Patent number: 10640599
    Abstract: The present disclosure is drawn to a reactive polyurethane dispersion including a polymer strand having a polymer backbone that has two ends terminating at a first capping unit and a second capping unit. The polymer backbone can include polymerized monomers including a reactive diol and a diisocyanate. The reactive diol can be an acrylate-containing diol, a methacrylate-containing diol, or combination thereof. The first capping unit can be an acrylate-containing monoalcohol or a methacrylate-containing monoalcohol reacted with an isocyanate group of the diisocyanate. The second capping unit can be 3-(cyclohexylamino)-1-propanesulfonic acid or 2-(cyclohexylamino)ethanesulfonic acid reacted with an isocyanate group of the diisocyanate.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: May 5, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Rodney David Stramel, Gregg A. Lane
  • Publication number: 20200131372
    Abstract: The present disclosure is drawn to aqueous pigment dispersions. In one example, an aqueous pigment dispersion can include from 40 wt % to 90 wt % water, from 2 wt % to 30 wt % organic co-solvent, from 7.5 wt % to 30 wt % quinacridone pigment, from 0.5 wt % to 3.5 wt % styrene-acrylic dispersant, and from 0.5 wt % to 3.5 wt % hydrophilic polyurethane dispersant having an acid number from 20 to 100. The styrene-acrylic dispersant and the hydrophilic polyurethane dispersant can be present at a weight ratio from 1:5 to 5:1.
    Type: Application
    Filed: September 14, 2017
    Publication date: April 30, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Dennis Z. Guo, Jie ZHANG, Tienteh CHEN, Marcos A, BARRETO CABAN, June YANG, Rodney David STRAMEL
  • Publication number: 20200131380
    Abstract: Printable compositions comprising a liquid carrier; and a radiation curable polyurethane dispersed in the liquid carrier are described, as well as methods of preparing the printable compositions and methods of printing using the printable compositions.
    Type: Application
    Filed: September 25, 2017
    Publication date: April 30, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Zhang-Lin Zhou, Gregg A. Lane, Rodney David Stramel, Qianhan Yang
  • Patent number: 10619007
    Abstract: The present disclosure is drawn to polymeric amine synergists, photo curable inks containing the polymeric amine synergists, and methods of making the photo curable inks. A polymeric amine synergist can include an aminobenzene modified with a polyether chain connecting to the aminobenzene through an amide linkage.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: April 14, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Rodney David Stramel, Gregg A. Lane
  • Publication number: 20200017681
    Abstract: The present disclosure is drawn to reactive polyurethane dispersions. In one example, a reactive polyurethane dispersion can include a polymer strand having a polymer backbone that has two ends terminating at a first capping unit and a second capping unit. The polymer backbone can include polymerized monomers including a reactive diol and a diisocyanate. The reactive diol can be an acrylate-containing diol, a methacrylate-containing diol, an acrylamide-containing diol, a methacrylamide-containing diol, or combination thereof. The first capping unit can be an acrylamide-containing monoalcohol or methacrylamide-containing monoalcohol reacted with an isocyanate group of the diisocyanate. The second capping unit can be an ionic stabilizing group.
    Type: Application
    Filed: January 31, 2017
    Publication date: January 16, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
  • Publication number: 20200017698
    Abstract: The present disclosure is drawn to a reactive polyurethane dispersion including a polymer strand having a polymer backbone that has two ends terminating at a first capping unit and a second capping unit. The polymer backbone can include polymerized monomers including a reactive diol and a blend of two or more diisocyanates. The reactive diol can be an acrylate-containing diol, a methacrylate-containing diol, or combination thereof. The first capping unit can be an acrylate-containing monoalcohol or methacrylate-containing monoalcohol reacted with an isocyanate group of the diisocyanates. The second capping unit can be an ionic stabilizing group. The polymer backbone can be devoid of ionic stabilizing groups.
    Type: Application
    Filed: January 31, 2017
    Publication date: January 16, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
  • Publication number: 20190352519
    Abstract: The present disclosure relates to an inkjet composition comprising a curable polyurethane dispersion and an aqueous carrier.
    Type: Application
    Filed: January 31, 2017
    Publication date: November 21, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
  • Patent number: 10421837
    Abstract: The present disclosure is drawn to polymeric amine synergist compositions. The polymeric amine synergist composition can include a polymeric amine synergist including an aminobenzene modified with a polyether chain connecting to the aminobenzene through an ether linkage. The polymeric amine synergist can be present in a reaction product mixture with either i) an aminophenol, or ii) a carbonate base.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: September 24, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Rodney David Stramel, Gregg A. Lane
  • Publication number: 20190284326
    Abstract: The present disclosure is drawn to a reactive polyurethane dispersion including a polymer strand having a polymer backbone that has two ends terminating at a first capping unit and a second capping unit. The polymer backbone can include polymerized monomers including a reactive diol and a diisocyanate. The reactive diol can be an acrylate-containing diol, a methacrylate-containing diol, or combination thereof. The first capping unit can be an acrylate-containing monoalcohol or a methacrylate-containing monoalcohol reacted with an isocyanate group of the diisocyanate. The second capping unit can be 3-(cyclohexylamino)-1-propanesulfonic acid or 2-(cyclohexylamino)ethanesulfonic acid reacted with an isocyanate group of the diisocyanate.
    Type: Application
    Filed: January 31, 2017
    Publication date: September 19, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
  • Patent number: 10414927
    Abstract: The present disclosure is drawn to polymeric photo active agents, photo curable inks containing the polymeric photo active agents, and methods of making the photo curable inks. A polymeric photo active agent can include a xanthone analog modified with a polyether chain connecting to the xanthone analog through an amide linkage.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: September 17, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Or Brandstein, Rodney David Stramel, Gregg A. Lane
  • Patent number: 10414862
    Abstract: A polymeric amine synergist is disclosed herein. An example of the polymeric amine synergist includes an aniline moiety, a polyethylene glycol chain, and an ether linkage attaching one end of the polyethylene glycol chain to the aniline moiety. The polymeric amine synergist may be included in a photo curable ink composition.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: September 17, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Rodney David Stramel, Gregg A. Lane
  • Publication number: 20190276482
    Abstract: The present disclosure is drawn to a photo active agent which includes a bisacylphosphinic compound in the form of an acid or salt having Structure I: where A and A? are independently aryl or from C2 to C8 lower alkyl; M is H, a monovalent cation, a divalent cation, or mixture thereof; n is 1 or 2; and q is 1 or 2. The photo active agent can be present in a composition that includes from 0.001 wt % to 5 wt % of a dialcohol phosphinic acid precursor or dialcohol phosphinic salt of the bisacylphosphinic compound of Structure I.
    Type: Application
    Filed: April 3, 2017
    Publication date: September 12, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Marisa SAMOSHIN, Rodney David STRAMEL
  • Publication number: 20190276695
    Abstract: The present disclosure relates to an Inkjet printing process that comprises inkjet printing an inkjet ink composition onto a substrate to form a printed inkjet ink layer. The inkjet ink composition comprises a colorant, a curable polyurethane dispersion, a photoinitiator and water, wherein the amount of curable polyurethane dispersed in the inkjet ink composition is 0.1 to 30 weight %. A radiation-curable overcoat composition is applied over the printed inkjet ink layer as an overcoat layer. The overcoat composition comprises a curable polyurethane dispersion, a photoinitiator and water. The printed inkjet ink layer is then cured on the substrate by exposing both the overcoat layer and inkjet ink layer on the substrate to radiation.
    Type: Application
    Filed: January 31, 2017
    Publication date: September 12, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Bor-Jiunn NIU
  • Publication number: 20190276690
    Abstract: The present disclosure relates to an inkjet printing process that comprises applying a radiation-curable primer composition onto a substrate to form a primer layer. The primer composition comprises a curable polyurethane dispersion, a photoinitiator and water. An inkjet ink composition is inkjet printed onto the primer layer as a printed inkjet ink layer. The inkjet ink composition comprises a colorant, a curable polyurethane dispersion, a photoinitiator and water. The curable polyurethane is dispersed in the inkjet ink composition in an amount of composition is 0.1 to 30 weight % of the inkjet ink composition. The printed inkjet ink layer is cured on the substrate by exposing both the primer layer and printed inkjet ink layer on the substrate to radiation.
    Type: Application
    Filed: January 31, 2017
    Publication date: September 12, 2019
    Applicant: Hewlett-Packard Development Company, L.P
    Inventors: Zhang-Lin Zhou, Rodney David STRAMEL, Tao CHEN, Bor-Jiunn NIU, Gregg A. LANE
  • Publication number: 20190276584
    Abstract: The present disclosure is drawn to a reactive polyurethane dispersion including a polymer strand having a polymer backbone that has two ends terminating at a first capping unit and a second capping unit. The polymer backbone can include polymerized monomers including a reactive diol and a diisocyanate. The reactive diol can be an acrylate-containing diol, a methacrylate-containing diol, an allyl-containing diol, or combination thereof. The first capping unit can be an allyl-containing monoalcohol reacted with an isocyanate group of the diisocyanate. The second capping unit can be an ionic stabilizing group.
    Type: Application
    Filed: January 31, 2017
    Publication date: September 12, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
  • Patent number: 10400067
    Abstract: The present disclosure is drawn to polymeric photoactive agent compositions. The polymeric photoactive agent composition can include a polymeric photoactive agent including a xanthone analog modified with a polyether chain connecting to the xanthone analog through an ether linkage. The polymeric photoactive agent can be present in a reaction product mixture with either i) a xanthone analog modified with a hydroxyl group, or ii) a carbonate base.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: September 3, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Rodney David Stramel, Qianhan Yang