Patents by Inventor Zhang-Lin Zhou

Zhang-Lin Zhou 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).

  • INKJET PRINTING METHOD AND APPARATUS
    Publication number: 20200140711
    Abstract: Herein is disclosed a method of transfer inkjet printing comprising applying a radiation curable primer onto an intermediate transfer member of an inkjet printer to form a radiation curable primer layer; jetting a radiation curable inkjet ink onto the radiation curable primer layer on the intermediate transfer member to form an image; irradiating the radiation curable inkjet ink and the radiation curable primer 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 printer adapted, in use, to perform the method.
    Type: Application
    Filed: September 25, 2017
    Publication date: May 7, 2020
    Inventors: Zhang-Lin ZHOU, STRAMEL David Rodney, Gregg A. LANE, Yubai Bl, Brian J. KEEFE
  • Reactive polyurethane dispersions
    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
  • PRINTABLE COMPOSITIONS
    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
  • INKJET INKS
    Publication number: 20200123400
    Abstract: The present disclosure is drawn inkjet inks, which can include an aqueous ink vehicle and a pigment particle having a block copolymer attached to a surface of the pigment particle. The block copolymer can be linked to the surface through a nitrogen atom-containing coupling group bonded to the surface through the nitrogen atom. The block copolymer can include a steric stabilizing block formed by polymerizing a monomer having a sterically bulky group, and an ionic stabilizing block formed by polymerizing a monomer having an acidic group or a basic group.
    Type: Application
    Filed: September 19, 2017
    Publication date: April 23, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Shao-Wei LI
  • Polymeric photo active agents
    Patent number: 10619030
    Abstract: The present disclosure is drawn to a polymeric photo active agent which includes diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide modified with a polyether having from 2 to 200 ether groups.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: April 14, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Zhang-Lin Zhou
  • Photo active agents
    Patent number: 10619065
    Abstract: The present disclosure is drawn to a photo active agent which includes a diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide modified with a tertiary amine having a water solubilizing group attached to the tertiary amine.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: April 14, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Zhang-Lin Zhou
  • Polymeric amine synergists
    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
  • AMINE SYNERGISTS
    Publication number: 20200040018
    Abstract: The present disclosure is drawn to an amine synergist including a tertiary benzylamine with a substituted benzene ring attached to a tertiary amine. The tertiary amine can be modified with multiple water soluble groups.
    Type: Application
    Filed: January 31, 2017
    Publication date: February 6, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventor: Zhang-Lin ZHOU
  • REACTIVE POLYURETHANE DISPERSIONS
    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
  • REACTIVE POLYURETHANE DISPERSIONS
    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
  • INKJET COMPOSITIONS
    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
  • Polymeric amine synergist compositions
    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
  • PHOTO ACTIVE AGENTS
    Publication number: 20190284417
    Abstract: The present disclosure is drawn to a photo active agent which includes a diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide modified with a tertiary amine having a water solubilizing group attached to the tertiary amine.
    Type: Application
    Filed: January 31, 2017
    Publication date: September 19, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventor: Zhang-Lin ZHOU
  • REACTIVE POLYURETHANE DISPERSIONS
    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
  • Polymeric amine synergist
    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
  • Polymeric photo active agents
    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
  • INKJET PRINTING
    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
  • REACTIVE POLYURETHANE DISPERSIONS
    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
  • PHOTO ACTIVE AGENTS
    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
  • INKJET PRINTING
    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