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).

  • Patent number: 11794506
    Abstract: A coating composition comprising water and polyurethane particles including cationic triphenyl-phosphonium salt functional groups. Also disclosed is a coated printable medium, with an image-side and a back-side, comprising a base substrate and the coating composition, such as described herein, that is applied over, at least, one side of the base substrate, forming an image-receiving layer. Also disclosed is the method for making such printable medium.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: October 24, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xiaoqi Zhou, Zhang-Lin Zhou
  • Publication number: 20230272241
    Abstract: The present disclosure describes phosphonium-containing polyurethane compositions, coating compositions, and coated fabric media. In one example, a phosphonium-containing polyurethane composition can include an aqueous liquid vehicle and polyurethane particles. The polyurethane particles can include a polyurethane polymer devoid of end cap groups, the polyurethane polymer also including a polyurethane backbone having side chain groups along the polyurethane backbone. The side chain groups can collectively include aliphatic phosphonium salts and polyalkylene oxide groups.
    Type: Application
    Filed: August 28, 2020
    Publication date: August 31, 2023
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Xiaoqi Zhou
  • Publication number: 20230022843
    Abstract: The present disclosure describes phosphonium-containing polyurethane compositions, coating compositions, and coated fabric media. In one example, a phosphonium-containing polyurethane composition can include an aqueous liquid vehicle and polyurethane particles. The polyurethane particles can include a polyurethane polymer devoid of end cap groups. The polyurethane polymer can include a polyurethane backbone having a polymerized diamine chain extender forming a portion of the backbone. The polyurethane polymer can also include side chain groups along the polyurethane backbone. The side chain groups can collectively include aliphatic phosphonium salts and polyalkylene oxide groups.
    Type: Application
    Filed: July 20, 2021
    Publication date: January 26, 2023
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Xiaoqi Zhou
  • Publication number: 20220403200
    Abstract: A multi-fluid kit for textile printing includes an inkjet ink and a fixer fluid. The inkjet ink includes a self-crosslinked polyurethane binder particle including a polyurethane polymer with a polymerized carboxylate-based diol and a polymerized sulfonated diamine, a pigment, and an ink aqueous vehicle; and a fixer fluid includes an azetidinium-containing polyamine, and a fixer aqueous vehicle.
    Type: Application
    Filed: June 7, 2021
    Publication date: December 22, 2022
    Inventors: Zhang-Lin Zhou, Qianhan Yang
  • Publication number: 20220403188
    Abstract: An inkjet ink includes a polyurethane binder particle including at least two polyurethane polymers; a pigment; and an aqueous vehicle. A first of the at least two polyurethane polymers has a first backbone chain formed from a first diisocyanate, a first hydrophobic graft diol, a first polycarbonate based diol, and a sulfonated diamine. A second of the at least two polyurethane polymer has a second backbone chain formed from a second diisocyanate, a second hydrophobic graft diol, and a second polycarbonate based diol, and includes a mono-amino substituted sulfonic acid as its capping moiety.
    Type: Application
    Filed: June 7, 2021
    Publication date: December 22, 2022
    Inventors: Zhang-Lin Zhou, Qianhan Yang
  • Publication number: 20220356293
    Abstract: A phosphonium-containing polyurethane composition can include an aqueous liquid vehicle including water, organic co-solvent, and surfactant, and polyurethane particles including a polyurethane polymer with a polyurethane backbone. The polyurethane polymer can have pendant side chain groups along the polyurethane backbone as well as end cap groups terminating the polyurethane polymer. The pendant side chain groups and the end cap groups can collectively include aliphatic phosphonium salts and polyalkylene oxides.
    Type: Application
    Filed: December 16, 2019
    Publication date: November 10, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Xiaoqi ZHOU, Or BRANDSTEIN
  • Publication number: 20220348776
    Abstract: The present disclosure describes ink compositions having a polyurethane binder that can be used for textile printing. In one example, an ink composition can include water, an organic co-solvent, a colorant, and a polyurethane binder. The polyurethane binder can include pre-polymer segments that include polymerized monomers of a diisocyanate, a graft diol, a polymeric diol, and an acid-containing diol. The graft diol can include thioglycerol having a polymer sidechain replacing a hydrogen atom on a sulfur atom of the thioglycerol. The polymer sidechain can include a polymerized monomer of an acrylate ester, a methacrylate ester, a styrene, or a combination thereof. The polyurethane binder can also include chain extenders connecting the pre-polymer segments. The chain extenders can include a polymerized sulfonate-containing diamine.
    Type: Application
    Filed: November 13, 2019
    Publication date: November 3, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Julia Jiayun ZHOU, Qianhan YANG
  • Publication number: 20220332971
    Abstract: A graft polyurethane copolymer dispersion can include dispersed polyurethane particles including a graft polyurethane copolymer. The graft polyurethane copolymer in this example includes a polyurethane backbone, a graft side-chain polymer attached to the polyurethane backbone, sulfonic acid groups, and isocyanate-generated amines. The graft side-chain polymer can include a poly(meth)acrylic moieties with C1 to C12 alkyl pendant groups, polyalkylene oxide pendant groups, or a combination thereof.
    Type: Application
    Filed: January 10, 2020
    Publication date: October 20, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Yubai BI, Qianhan YANG
  • Publication number: 20220325135
    Abstract: The present disclosure sets forth ink compositions having a biodegradable polyurethane binder that can be used for textile printing. In one example, an ink composition can include water, an organic co-solvent, a colorant, and a biodegradable polyurethane binder. The biodegradable polyurethane binder can include prepolymer segments including polymerized monomers of a diisocyanate and a diol. The diol can include to terminal 6-hydroxyhexanoate groups linked by an organic linking group. Chain extenders can connect the prepolymer segments. The chain extenders can include a polymerized diamine.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 13, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Or BRANDSTEIN, Qianhan YANG
  • Publication number: 20220243079
    Abstract: The present disclosure includes a white ink composition including a liquid vehicle with water and organic co-solvent, from 0.5 wt % to 15 wt % white metal oxide particles dispersed in the liquid vehicle, and from 0.1 wt % to 30 wt % of polyurethane particles dispersed in the liquid vehicle. The polyurethane particles include a polyurethane polymer with polymerized sulfonated-diamines, polymerized nonionic diamines, and isocyanate-generated self-crosslinked amines.
    Type: Application
    Filed: October 3, 2019
    Publication date: August 4, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Jie ZHENG, Dennis Z. GUO
  • Patent number: 11401652
    Abstract: A pre-treatment composition comprising water, reactive crosslinking agents and polyurethane particles polyurethane particles including sulfonated- or carboxylated-diamine groups, isocyanate-generated amine groups, and polyalkylene oxide side-chains. Also disclosed is a pre-treated printable medium comprising a base substrate and the pre-treatment composition, such as described herein, that is applied over, at least, one side of the base substrate, forming an image-receiving surface. Also disclosed is the method for making such printable medium.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 2, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Xiaoqi Zhou
  • Patent number: 11390764
    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: Grant
    Filed: September 19, 2017
    Date of Patent: July 19, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Shao-Wei Li
  • Publication number: 20220195663
    Abstract: A coating composition comprising water and polyurethane particles including cationic triphenyl-phosphonium salt functional groups. Also disclosed is a coated printable medium, with an image-side and a back-side, comprising a base substrate and the coating composition, such as described herein, that is applied over, at least, one side of the base substrate, forming an image-receiving layer. Also disclosed is the method for making such printable medium.
    Type: Application
    Filed: August 27, 2019
    Publication date: June 23, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Xiaoqi Zhou, Zhang-Lin Zhou
  • Publication number: 20220186070
    Abstract: A multi-functional polyurethane coating composition can include water and polyurethane particles including a blend of polyurethane polymers with polyurethane backbones. The polyurethane particles can include multiple pendant groups independently attached to one or multiple polyurethane backbones within the blend of polyurethane polymers. The multiple pendant groups of the polyurethane particles include polyalkylene oxides, aliphatic phosphonium salts, and epoxides.
    Type: Application
    Filed: October 18, 2019
    Publication date: June 16, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Xiaoqi ZHOU
  • Publication number: 20220154395
    Abstract: Aspects of the present disclosure relate to a printable medium including a polyurethane dispersion. As an example, a printable medium may include a fabric base substrate, with an image-side and a back-side. A film-forming layer may be applied to the image-side of the fabric base substrate, including an anionic polyurethane dispersion having a reactive group on a backbone of the polyurethane dispersion and a reactive group on a capping unit of the polyurethane dispersion. An ink-receiving coating layer may be applied over the film-forming layer, including a crosslink agent.
    Type: Application
    Filed: October 3, 2019
    Publication date: May 19, 2022
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Xiaoqi ZHOU, Zhang-Lin ZHOU, Or BRANDSTEIN
  • Publication number: 20220154028
    Abstract: Described herein is a printing set comprising a curable transparent pre-treatment composition and a fixer composition. The curable transparent pre-treatment composition comprises a curable polyurethane, wherein the curable polyurethane comprises a copolymer of a polyisocyanate; a polyol comprising at least one reactive group selected from an acrylate group, a methacrylate group, an acrylamide group, a methacrylamide group, a styrene, an allyl group and a combination thereof; and a chain-terminating compound comprising a monoalcohol or a monoamine. The fixer composition comprises a salt of a cation and an anion. Also described herein is a method of printing on a textile and a printed textile substrate.
    Type: Application
    Filed: September 27, 2019
    Publication date: May 19, 2022
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Zhang-Lin ZHOU, Xiaoqi ZHOU
  • Publication number: 20220145112
    Abstract: A flame-resistant print media coating composition includes water and polyurethane particles dispersed in the water. The polyurethane particles include polyurethane polymer with a polyurethane backbone. The polyurethane backbone includes urethane linkage groups associated with aliphatic phosphonium salts as well as polymeric portions.
    Type: Application
    Filed: July 31, 2019
    Publication date: May 12, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Xiaoqi Zhou, Zhang-Lin Zhou, Or Brandstein
  • Publication number: 20220145107
    Abstract: A flame-resistant print media coating composition includes water and polyurethane particles dispersed in the water. The polyurethane particles include a polyurethane polymer having a polyurethane backbone with urethane linkage groups coupling polymerized diisocyanates and polymerized polymeric diols along the polyurethane backbone. The polyurethane polymer in this example includes aliphatic phosphonium salt capping groups.
    Type: Application
    Filed: July 31, 2019
    Publication date: May 12, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Xiaoqi Zhou, Xulong Fu
  • Publication number: 20220136170
    Abstract: A fabric coating composition can include water, from 3 wt % to 95 wt % oxazoline reactive compound by dry weight including an oxazoline group, and from 3 wt % to 70 wt % cationic charging agent by dry weight. The fabric coating composition can have a pH from pH 2 to pH 6.
    Type: Application
    Filed: July 22, 2019
    Publication date: May 5, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Xiaoqi Zhou, Zhang-Lin Zhou
  • Publication number: 20220127787
    Abstract: The present disclosure describes methods of printing, textile printing systems, and printers. In one example, a method of printing can include jetting an ink composition onto a substrate, the ink composition including an evaporable solvent, a colorant, and a non-curable polymeric binder. The ink composition on the substrate can be exposed to electromagnetic radiation having a wavelength from 350 nm to 420 nm. The exposure of the ink composition can begin from 0 ms to 600 ms after jetting the ink composition. The electromagnetic radiation can heat the ink composition to evaporate a portion of the evaporable solvent from the ink composition within 5 ms to 500 ms after the beginning of the exposure.
    Type: Application
    Filed: November 19, 2019
    Publication date: April 28, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Ronal Albert ASKELAND, Or BRANDSTEIN, AIi MAHROU