Patents by Inventor Rodney David Stramel
Rodney David Stramel 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: 10619007Abstract: 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: GrantFiled: January 27, 2015Date of Patent: April 14, 2020Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Rodney David Stramel, Gregg A. Lane
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Publication number: 20200017698Abstract: 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: ApplicationFiled: January 31, 2017Publication date: January 16, 2020Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
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Publication number: 20200017681Abstract: 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: ApplicationFiled: January 31, 2017Publication date: January 16, 2020Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
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Publication number: 20190352519Abstract: The present disclosure relates to an inkjet composition comprising a curable polyurethane dispersion and an aqueous carrier.Type: ApplicationFiled: January 31, 2017Publication date: November 21, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
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Patent number: 10421837Abstract: 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: GrantFiled: December 15, 2015Date of Patent: September 24, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Rodney David Stramel, Gregg A. Lane
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Publication number: 20190284326Abstract: 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: ApplicationFiled: January 31, 2017Publication date: September 19, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
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Patent number: 10414862Abstract: 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: GrantFiled: July 9, 2015Date of Patent: September 17, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Rodney David Stramel, Gregg A. Lane
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Patent number: 10414927Abstract: 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: GrantFiled: January 27, 2015Date of Patent: September 17, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Or Brandstein, Rodney David Stramel, Gregg A. Lane
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Publication number: 20190276690Abstract: 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: ApplicationFiled: January 31, 2017Publication date: September 12, 2019Applicant: Hewlett-Packard Development Company, L.PInventors: Zhang-Lin Zhou, Rodney David STRAMEL, Tao CHEN, Bor-Jiunn NIU, Gregg A. LANE
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Publication number: 20190276695Abstract: 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: ApplicationFiled: January 31, 2017Publication date: September 12, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Bor-Jiunn NIU
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Publication number: 20190276482Abstract: 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: ApplicationFiled: April 3, 2017Publication date: September 12, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Marisa SAMOSHIN, Rodney David STRAMEL
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Publication number: 20190276584Abstract: 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: ApplicationFiled: January 31, 2017Publication date: September 12, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
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Patent number: 10400067Abstract: The present disclosure is drawn to polymeric photoactive agent compositions. The polymeric photoactive agent composition can include a polymeric photoactive agent including a xanthone analog modified with a polyether chain connecting to the xanthone analog through an ether linkage. The polymeric photoactive agent can be present in a reaction product mixture with either i) a xanthone analog modified with a hydroxyl group, or ii) a carbonate base.Type: GrantFiled: October 27, 2015Date of Patent: September 3, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Rodney David Stramel, Qianhan Yang
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Patent number: 10400066Abstract: The present disclosure is drawn to polymeric photoactive agent, photo curable inks containing the polymeric photoactive agent, and methods of making the photo curable inks. The polymeric photoactive agent can include a xanthone analog modified with a polyether chain connecting to the xanthone analog through an ether linkage.Type: GrantFiled: January 27, 2015Date of Patent: September 3, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Or Brandstein, Rodney David Stramel, Gregg A. Lane
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Publication number: 20190256654Abstract: The present disclosure is drawn to polymeric photoactive agent, photo curable inks containing the polymeric photoactive agent, and methods of making the photo curable inks. The polymeric photoactive agent can include a xanthone analog modified with a polyether chain connecting to the xanthone analog through an ether linkage.Type: ApplicationFiled: April 30, 2019Publication date: August 22, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Or Brandstein, Rodney David Stramel, Gregg A. Lane
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Patent number: 10364364Abstract: A photo curable ink composition includes a photo-reactive binder, a water soluble polymeric sensitizer, a water soluble photoinitiator, a colorant, and a balance of water. The water soluble polymeric sensitizer includes a functionalized anthrone moiety, a polyether chain, and an amide linkage or an ether linkage attaching one end of the polyether chain to the functionalized anthrone moiety. The water soluble photoinitiator having a formula (I) of: wherein n is any integer from 1 to 5 and M is a metal with a valence from 1 to 5.Type: GrantFiled: October 29, 2015Date of Patent: July 30, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin Zhou, Yubai Bi, Or Brandstein, Rodney David Stramel, Gregg A. Lane
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Publication number: 20190218404Abstract: 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, a styrene-containing diol, or combination thereof. The first capping unit can be a styrene-containing monoalcohol reacted with an isocyanate group of the diisocyanate. The second capping unit can be an ionic stabilizing group.Type: ApplicationFiled: January 31, 2017Publication date: July 18, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Qianhan YANG
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Publication number: 20190184725Abstract: 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.Type: ApplicationFiled: February 7, 2017Publication date: June 20, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
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Patent number: 10071353Abstract: An aqueous radiation curable dispersant formulation includes water and styrene acrylic resin stabilized thioxanthone derivative photoinitiator particles dispersed in the water. The styrene acrylic resin stabilized thioxanthone derivative photo initiator particles have a volume-weighted mean diameter of less than 40 nm. The styrene acrylic resin stabilized thioxanthone derivative photo initiator particles include a water-insoluble, thioxanthone derivative photoinitiator core having one, two, or three units. When the water-insoluble, thioxanthone derivative photoinitiator core includes two units or three units, the units are covalently bonded together.Type: GrantFiled: January 29, 2015Date of Patent: September 11, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Marcos A. Barreto Caban, Thomas W. Butler, Rodney David Stramel, Gregg A. Lane
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Publication number: 20180194955Abstract: A photo curable ink composition includes a photo-reactive binder, a water soluble polymeric sensitizer, a water soluble photoinitiator, a colorant, and a balance of water. The water soluble polymeric sensitizer includes a functionalized anthrone moiety, a polyether chain, and an amide linkage or an ether linkage attaching one end of the polyether chain to the functionalized anthrone moiety. The water soluble photoinitiator having a formula (I) of: wherein n is any integer from 1 to 5 and M is a metal with a valence from 1 to 5.Type: ApplicationFiled: October 29, 2015Publication date: July 12, 2018Inventors: Zhang-Lin Zhou, Yubai Bi, Or Brandstein, Rodney David Stramel, Gregg A. Lane