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).
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Patent number: 12202992Abstract: 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: GrantFiled: October 3, 2019Date of Patent: January 21, 2025Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Jie Zheng, Dennis Z. Guo
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Publication number: 20240287348Abstract: The present disclosure describes coating compositions containing halogenated polyurethanes, coated fabric media, and methods of making coated fabric media. In one example, a coating composition incudes an aqueous liquid vehicle, a cross-linkable polymeric binder, and a halogenated polyurethane dispersion. The halogenated polyurethane dispersion includes a polyurethane polymer strand having a halogen atom covalently bonded to the polyurethane polymer strand.Type: ApplicationFiled: June 25, 2021Publication date: August 29, 2024Inventors: Xiaoqi Zhou, Xulong Fu, Zhang-Lin Zhou
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Patent number: 11987928Abstract: 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: GrantFiled: July 22, 2019Date of Patent: May 21, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Xiaoqi Zhou, Zhang-Lin Zhou
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Publication number: 20240124740Abstract: A printable medium that comprises a base substrate with an image-side and a back-side. An ink-receiving layer comprising water and, at least, two polymeric networks with the first polymeric network being a polyurethane-based polymer and the second polymeric network being a reactive polyaziridine polymer is applied to the image-side of the fabric base substrate. Also described herein are a method for forming the printable medium and a printing method that includes ejecting an ink composition onto the print medium described herein.Type: ApplicationFiled: January 22, 2021Publication date: April 18, 2024Applicant: Hewlett-Packard Development Company, L.P.Inventors: Xiaoqi ZHOU, Zhang-Lin ZHOU
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Patent number: 11794506Abstract: 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: GrantFiled: August 27, 2019Date of Patent: October 24, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Xiaoqi Zhou, Zhang-Lin Zhou
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Publication number: 20230272241Abstract: 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: ApplicationFiled: August 28, 2020Publication date: August 31, 2023Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Xiaoqi Zhou
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Publication number: 20230022843Abstract: 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: ApplicationFiled: July 20, 2021Publication date: January 26, 2023Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Xiaoqi Zhou
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Publication number: 20220403188Abstract: 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: ApplicationFiled: June 7, 2021Publication date: December 22, 2022Inventors: Zhang-Lin Zhou, Qianhan Yang
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Publication number: 20220403200Abstract: 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: ApplicationFiled: June 7, 2021Publication date: December 22, 2022Inventors: Zhang-Lin Zhou, Qianhan Yang
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Publication number: 20220356293Abstract: 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: ApplicationFiled: December 16, 2019Publication date: November 10, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Xiaoqi ZHOU, Or BRANDSTEIN
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Publication number: 20220348776Abstract: 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: ApplicationFiled: November 13, 2019Publication date: November 3, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Julia Jiayun ZHOU, Qianhan YANG
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Publication number: 20220332971Abstract: 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: ApplicationFiled: January 10, 2020Publication date: October 20, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Yubai BI, Qianhan YANG
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Publication number: 20220325135Abstract: 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: ApplicationFiled: April 3, 2020Publication date: October 13, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Or BRANDSTEIN, Qianhan YANG
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Publication number: 20220243079Abstract: 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: ApplicationFiled: October 3, 2019Publication date: August 4, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Jie ZHENG, Dennis Z. GUO
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Patent number: 11401652Abstract: 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: GrantFiled: December 17, 2019Date of Patent: August 2, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Xiaoqi Zhou
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Patent number: 11390764Abstract: 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: GrantFiled: September 19, 2017Date of Patent: July 19, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Shao-Wei Li
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Publication number: 20220195663Abstract: 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: ApplicationFiled: August 27, 2019Publication date: June 23, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Xiaoqi Zhou, Zhang-Lin Zhou
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Publication number: 20220186070Abstract: 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: ApplicationFiled: October 18, 2019Publication date: June 16, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Xiaoqi ZHOU
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Publication number: 20220154028Abstract: 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: ApplicationFiled: September 27, 2019Publication date: May 19, 2022Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Zhang-Lin ZHOU, Xiaoqi ZHOU
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Publication number: 20220154395Abstract: 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: ApplicationFiled: October 3, 2019Publication date: May 19, 2022Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Xiaoqi ZHOU, Zhang-Lin ZHOU, Or BRANDSTEIN