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公开(公告)号：WO2020027849A1
公开(公告)日：2020-02-06
申请号：PCT/US2018/045092
申请日：2018-08-03
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： CHEN, Tao , FU, Xulong , CHOU, Beverly , BRANDSTEIN, Or
Abstract: The present disclosure is drawn to coated print media, methods of making coated print media, and methods of printing. In one example, a coated print medium can include a substrate, a base coating layer on the substrate, and a top coating layer on the base coating layer. The base coating layer can include an inorganic pigment, a binder, and a fixing agent. The top coating layer can include polyvinyl alcohol and polymer nanobeads having a gloss transition temperature from 70 °C to 350 °C. The polyvinyl alcohol and polymer nanobeads can be included at from 50 wt% to 100 wt% by dry weight of the top coating layer.
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公开(公告)号：WO2019240818A1
公开(公告)日：2019-12-19
申请号：PCT/US2018/037804
申请日：2018-06-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： WEISMAN, Adam , CHOU, Beverly , BRANDSTEIN, Or
IPC: B41J2/435 , B41J2/315 , B41M5/36 , B41F19/02 , C09D11/102
Abstract: The present disclosure is drawn to methods of radiative embossing print media. In one example, the method of radiative embossing a print medium can include printing a radiation absorbing ink on a coated print medium to form a printed area. The coated print medium can include a print substrate and an expanding coating layer on the print substrate. The expanding coating layer can include a thermal expansion agent having a minimum expansion temperature. The method can further include heating the coated print medium using a heater such that the printed area and unprinted area reach a first temperature from 5 °C to 90 °C below the minimum expansion temperature. The coated print medium can be irradiated with radiation having a wavelength from 200 nm to 400 nm to selectively heat the print area and expand the thermal expansion agent in the printed area.
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公开(公告)号：WO2019013783A1
公开(公告)日：2019-01-17
申请号：PCT/US2017/041751
申请日：2017-07-12
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： KHORRAMI, Fereshteh , CHOU, Beverly , FU, Xulong , CHEN, Tao
CPC classification number: D21H19/36 , B41M5/5218 , B41M5/5254 , D21H19/48 , D21H19/56 , D21H19/64 , D21H27/10
Abstract: An example of a coating composition for a packaging liner includes an inorganic pigment, a latex, polyvinyl alcohol in an amount ranging from greater than 2 dry wt% to about 7 dry wt%, and a fixing agent. The fixing agent is selected from the group consisting of water-soluble mono-valent metallic salts, water-soluble multi-valent metallic salts, and combinations thereof, wherein the metallic salt includes (i) a cation of a metal selected from the group consisting of Group I metals, Group II metals, Group III metals, transition metals, and combinations thereof, and (ii) an anion selected from the group consisting of chloride, propionate, iodide, bromide, nitrate, sulfate, sulfite, phosphate, chlorate, acetate, chlorohydrate, and combinations thereof.
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公开(公告)号：WO2022093212A1
公开(公告)日：2022-05-05
申请号：PCT/US2020/057663
申请日：2020-10-28
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： CHOU, Beverly , WEISMAN, Adam , BECKER, Tynan
Abstract: Self-wicking assay devices can include a hydrophilic porous substrate for sequential sample fluid flow from a complexing region to a detecting region thereof. The complexing region can include an analyte-complexing compound on the hydrophilic porous substrate, and the detecting region can be positioned downstream from the complexing region along the hydrophilic porous substrate. A binding promoter can be applied to the detecting region of hydrophilic porous substrate, an immobilized testing compound can be applied to the binding promoter at a first discrete location of the detecting region, and an immobilized control compound can be applied to the binding promoter at a second discrete location of the detecting region.
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公开(公告)号：WO2022093211A1
公开(公告)日：2022-05-05
申请号：PCT/US2020/057658
申请日：2020-10-28
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： CHOU, Beverly , WEISMAN, Adam
IPC: G01N1/14 , G01N21/77 , G01N21/84 , G01N33/543
Abstract: The present disclosure relates to self-wicking assay devices that can include a porous membrane for sequential flow of a sample fluid from a complexing region to a detecting region thereof. The complexing region can include a releasing compound to ameliorate binding between a porous membrane and an analyte introduced by the sample fluid and an analyte-complexing compound. The detecting region can be positioned downstream from the complexing region along the porous membrane. The detecting region can include an immobilized testing compound applied to the porous membrane at a first discrete location of the detecting region, and an immobilized control compound applied to the porous membrane at a second discrete location of the detecting region.
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Patent Agency Ranking
公开(公告)号：WO2022081133A1
公开(公告)日：2022-04-21
申请号：PCT/US2020/055304
申请日：2020-10-13
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： VAIDYANATHAN, Rajasekar , ABELOVSKI, Benjamin , CHOU, Beverly , ROGACS, Anita
IPC: B01D69/02 , G01N33/538 , B81B1/00 , B41J2/175
Abstract: The present disclosure describes methods of modifying porous wicking membranes. In one example, a method of modifying a porous wicking membrane can include applying a flow modifier composition to a porous wicking membrane. The porous wicking membrane can have an initial capillary flow time (CFT) before the flow modifier composition is applied and a modified CFT after the flow modifier composition is applied. The modified CFT can be finite and different from the initial CFT. The CFT can be defined as the time for a water front to traverse a distance of 4 cm across the porous wicking membrane. The flow modifier composition can include an aqueous liquid vehicle and a flow modifying material that includes wax nanoparticles to increase the CFT or a surfactant to decrease the CFT.
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公开(公告)号：WO2022005468A1
公开(公告)日：2022-01-06
申请号：PCT/US2020/040446
申请日：2020-07-01
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： CHOU, Beverly , ROGACS, Anita , ABELOVSKI, Benjamin
Abstract: The present disclosure describes methods of forming hydrophobic flow barriers in porous substrates. In one example, a method of forming a hydrophobic flow barrier in a porous substrate can include applying a flow modifier composition onto an area of a surface of a porous substrate. The flow modifier composition can include an aqueous solvent, dispersed hydrophobic material particles, and a dispersant. The flow modifier composition can wick through pores of the porous substrate. The method can also include controlling the lateral spread, or penetration depth, or both, of the flow modifier composition through the porous substrate to form a hydrophobic flow barrier.
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公开(公告)号：WO2019240820A1
公开(公告)日：2019-12-19
申请号：PCT/US2018/037828
申请日：2018-06-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： CHOU, Beverly , WEISMAN, Adam , BRANDSTEIN, Or
Abstract: The present disclosure is drawn to radiation embossable coated print media. In one example, a radiation embossable coated print medium can include a print substrate, an expanding coating layer on the print substrate, and an ink receiving layer on the expanding coating layer. The expanding coating layer can include a flexible polymer binder and temperature responsive thermoplastic beads in the flexible polymeric binder. The temperature responsive thermoplastic beads can include a propellant encapsulated in a thermoplastic polymer shell.
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公开(公告)号：WO2019240813A1
公开(公告)日：2019-12-19
申请号：PCT/US2018/037738
申请日：2018-06-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： WEISMAN, Adam , BRANDSTEIN, Or , CHOU, Beverly
Abstract: The present disclosure is drawn to methods of embossing print media, printing systems, and printers. In one example, a method of embossing a print medium can include printing a radiation absorbing ink on a coated print medium to form a printed area. The coated print medium can include a print substrate and an expanding coating layer on the print substrate. The expanding coating layer can include a thermal expansion agent having a minimum expansion temperature. The method can further include heating the coated print medium using a heater such that the printed area and unprinted area reach a first temperature from 5 C to 90 C below the minimum expansion temperature. The coated print medium can be irradiated with radiation having a wavelength from 200 nm to 400 nm to selectively heat the print area and expand the thermal expansion agent in the printed area.
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公开(公告)号：WO2022093214A1
公开(公告)日：2022-05-05
申请号：PCT/US2020/057734
申请日：2020-10-28
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： ABELOVSKI, Benjamin , CHOU, Beverly , ROGACS, Anita
IPC: A61B5/00 , G01N1/14 , G01N33/487 , G01N35/10 , B81B1/00
Abstract: The present disclosure relates to forming a fluid degradable barrier valve with materials including a self-wicking porous substrate and a barrier valve formulation. The barrier valve formulation can include from about 1 wt% to about 20 wt% of a hydrophobic material dispersed or dissolved in an aqueous liquid vehicle including water and from about 5 wt% to about 30 wt% of an organic co-solvent having a negative partition coefficient.
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