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    PRE-TREATMENT COMPOSITION AND PRINTABLE MEDIUM
    31.
    发明申请
    PRE-TREATMENT COMPOSITION AND PRINTABLE MEDIUM 有权

    公开(公告)号：US20210324575A1

    公开(公告)日：2021-10-21

    申请号：US17269220

    申请日：2019-12-17

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Zhang-Lin Zhou ,  Xiaoqi Zhou

    IPC: D06M15/564

    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.

    INKJET FLUID COMPOSITION
    32.
    发明申请
    INKJET FLUID COMPOSITION 有权

    公开(公告)号：US20210261802A1

    公开(公告)日：2021-08-26

    申请号：US17059642

    申请日：2018-11-14

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Kai-Kong Iu ,  Junji Yamamoto ,  Zhang-Lin Zhou ,  Qianhan Yang

    IPC: C09D11/101 ,  C09D11/033 ,  C09D11/037 ,  C09D11/107 ,  C09D11/38 ,  B41J2/21

    Abstract: An example of a thermal inkjet fluid composition includes a water soluble photoacid generator having substantially no absorbance at a radiation wavelength ranging from about 360 nm to about 410 nm, a water soluble polymeric sensitizer having absorption at the radiation wavelength ranging from about 360 nm to about 410 nm, a polymeric binder, and a balance of water. The water soluble polymeric sensitizer includes a functionalized aromatic chromophore moiety, a polyether chain, and an amide linkage or an ether linkage attaching one end of the polyether chain to the functionalized aromatic chromophore moiety.

    Reactive polyurethane dispersions
    33.
    发明授权
    Reactive polyurethane dispersions 有权

    公开(公告)号：US10920074B2

    公开(公告)日：2021-02-16

    申请号：US16335541

    申请日：2017-01-31

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Zhang-Lin Zhou ,  Rodney David Stramel ,  Gregg A. Lane

    IPC: C08L75/16 ,  C08G18/75 ,  C08G18/81 ,  C09D11/101 ,  C09D11/322 ,  C09D175/16

    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.

    Reactive polyurethane dispersions
    34.
    发明授权
    Reactive polyurethane dispersions 有权

    公开(公告)号：US10907057B2

    公开(公告)日：2021-02-02

    申请号：US16334897

    申请日：2017-01-31

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Zhang-Lin Zhou ,  Rodney David Stramel ,  Gregg A. Lane

    IPC: C09D11/101 ,  C08G18/08 ,  C08G18/67 ,  C08G18/72 ,  C08G18/73 ,  C08G18/75

    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.

    Inkjet printing
    35.
    发明授权
    Inkjet printing 有权

    公开(公告)号：US10821760B2

    公开(公告)日：2020-11-03

    申请号：US16331239

    申请日：2017-02-07

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Zhang-Lin Zhou ,  Rodney David Stramel ,  Gregg A. Lane

    IPC: B41J11/02 ,  B41M5/00 ,  C09D11/322 ,  C09D11/54 ,  C09D11/40 ,  C09D11/101 ,  B41M7/00 ,  C09D11/38 ,  B41M5/52

    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 inkjet printed over the printed inkjet ink layer as an overcoat layer. The overcoat composition comprises a curable polyurethane dispersion, a photoinitiator and water, wherein the amount of curable polyurethane dispersed in the overcoat composition is 0.1 to 30 weight %. The printed inkjet ink layer is cured by exposing both the printed inkjet ink layer and the overcoat layer on the substrate to radiation.

    Forming 3-D nano-particle assemblies
    40.
    发明授权
    Forming 3-D nano-particle assemblies 有权
    形成3-D纳米颗粒组件

    公开(公告)号：US09476833B2

    公开(公告)日：2016-10-25

    申请号：US13754404

    申请日：2013-01-30

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Steven J. Barcelo ,  Zhiyong Li ,  Ansoon Kim ,  Zhang-Lin Zhou ,  Gary Gibson

    IPC: G01N33/00 ,  G01N21/65 ,  B82Y40/00

    CPC classification number: G01N21/658 ,  B82Y40/00 ,  Y10S977/882

    Abstract: According to an example, methods for forming three-dimensional (3-D) nano-particle assemblies include depositing SES elements onto respective tips of nano-fingers, in which the nano-fingers are arranged in sufficiently close proximities to each other to enable the tips of groups of adjacent ones of the nano-fingers to come into sufficiently close proximities to each other to enable the SES elements on the tips to be bonded together when the nano-fingers are partially collapsed. The methods also include causing the nano-fingers to partially collapse toward adjacent ones of the nano-fingers to cause a plurality of SES elements on respective groups of the nano-fingers to be in relatively close proximities to each other and form respective clusters of SES elements, introducing additional particles that are to attach onto the clusters of SES elements, and causing the clusters of SES elements to detach from the nano-fingers.

    Abstract translation: 根据一个实例，用于形成三维（3-D）纳米颗粒组件的方法包括将SES元件沉积到纳米手指的各个尖端上，其中纳米手指以彼此足够接近的方式排列，使得 纳米手指的相邻组的尖端彼此靠近，使得当纳米手指被部分折叠时，尖端上的SES元件能够结合在一起。 所述方法还包括使纳米指部分相对于纳米手指部分地折叠，以使纳米手指的相应组上的多个SES元件彼此相对接近并形成相应的SES簇 引入附加到SES元件簇上的附加颗粒，并使SES元件簇与纳米手指分离。

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