Patents by Inventor Graciela E. Negri Jimenez
Graciela E. Negri Jimenez 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: 11993010Abstract: In an example of a method for three-dimensional (3D) printing, a polymeric build material is applied to form a build material layer. A fusing agent is selectively applied, based on a 3D object model, onto the build material layer to form a patterned portion. A hydrophobic agent is selectively applied, based on the 3D object model, onto at least a portion of the patterned portion. The hydrophobic agent includes a lipophilic phase discontinuously dispersed within an aqueous phase by a surfactant, wherein the lipophilic phase includes an organosilane having a central silicon atom coupled to a C6 to C24 aliphatic or alicyclic hydrocarbon and multiple hydrolyzable groups, wherein the organosilane is present in the hydrophobic agent at from about 1 wt % to about 20 wt %. The build material layer is exposed to energy to selectively coalesce the patterned portion and form a 3D object layer having a hydrophobic portion.Type: GrantFiled: September 19, 2019Date of Patent: May 28, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Graciela E. Negri Jimenez, Emre Hiro Discekici, Shannon Reuben Woodruff
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Patent number: 11939484Abstract: A multi-fluid kit for three-dimensional printing can include a fusing agent with water and a radiation absorber, and a detailing agent. The radiation absorber can absorb radiation energy and converts the radiation energy to heat. The detailing agent can include water and from about 0.1 wt % to about 20 wt % organosilanes based on a total weight of the detailing agent, wherein the organosilanes include an organosilane compound with a central silicon having both a water-solubilizing group and multiple hydrolyzable groups attached thereto.Type: GrantFiled: June 10, 2019Date of Patent: March 26, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Graciela E. Negri Jimenez, Michael A. Novick, Tienteh Chen, Jacob Wright
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Publication number: 20240025113Abstract: In an example of a surface treatment method, a three-dimensionally printed polyamide object is used. In the surface treatment method, the three-dimensionally printed polyamide object is first exposed to benzyl alcohol. In the surface treatment method, the three-dimensionally printed polyamide object is exposed to microwave irradiation after the benzyl alcohol exposure.Type: ApplicationFiled: October 30, 2020Publication date: January 25, 2024Inventors: EMRE HIRO DISCEKICI, GRACIELA E NEGRI JIMENEZ, SHANNON REUBEN WOODRUFF, ALAY YEMANE, MARK H. KOWALSKI
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Publication number: 20230398733Abstract: An example of a multi-fluid kit for three-dimensional (3D) printing includes a fusing agent and a surface treating agent. The fusing agent includes an electromagnetic radiation absorber and a first aqueous vehicle. The surface treating agent includes a second aqueous vehicle, a surfactant, and benzyl alcohol dissolved in the second aqueous vehicle.Type: ApplicationFiled: October 30, 2020Publication date: December 14, 2023Inventors: EMRE HIRO DISCEKICI, MARK H. KOWALSKI, SHANNON REUBEN WOODRUFF, ALAY YEMANE, GRACIELA E NEGRI JIMENEZ
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Publication number: 20230227692Abstract: An example of a jettable antioxidant formulation is for three-dimensional (3D) printing. The jettable antioxidant formulation includes an antioxidant blend; a surfactant, a dispersant, or a combination thereof; a water soluble or water miscible organic co-solvent; and water. The antioxidant blend consists of a primary antioxidant and a secondary antioxidant.Type: ApplicationFiled: April 24, 2020Publication date: July 20, 2023Inventors: GRACIELA E NEGRI JIMENEZ, SHANNON REUBEN WOODRUFF, EMRE HIRO DISCEKICI, JASON C BUTLER
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Publication number: 20230226754Abstract: An example of a multi-fluid kit for three-dimensional (3D) printing kit includes a fusing agent and a build material reactive functional agent. The fusing agent includes water and an electromagnetic radiation absorber. The build material reactive functional agent includes a vehicle and trifluoroacetic anhydride. The multi-fluid kit may also be part of a 3D printing kit.Type: ApplicationFiled: April 23, 2020Publication date: July 20, 2023Inventors: GRACIELA E NEGRI JIMENEZ, SHANNON REUBEN WOODRUFF, EMRE HIRO DISCEKICI
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Publication number: 20230227671Abstract: The present disclosure is drawn to food contact compliant three-dimensional printing kits, materials, compositions, systems, and methods. In one example, a multi-fluid kit of food contact compliant agents for three-dimensional printing can include a food contact compliant fusing agent and a food contact compliant detailing agent. The food contact compliant fusing agent can include from about 70 wt% to about 96 wt% water, from about 3 wt% to about 10 wt% by solids weight of a food contact compliant carbon black dispersion, and from about 1 wt% to about 25 wt% of a food contact compliant water-soluble first co-solvent. The food contact compliant detailing agent can include from about 75 wt % to about 99 wt% water and from about 0.01 wt% to about 1 wt% of a food contact compliant chelating compound.Type: ApplicationFiled: October 15, 2020Publication date: July 20, 2023Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: EMRE HIRO DISCEKICI, GRACIELA E NEGRI JIMENEZ, THOMAS M SABO, JASON BUTLER
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Publication number: 20220258413Abstract: In an example of a method for three-dimensional (3D) printing, a polymeric build material is applied to form a build material layer. A fusing agent is selectively applied, based on a 3D object model, onto the build material layer to form a patterned portion. A hydrophobic agent is selectively applied, based on the 3D object model, onto at least a portion of the patterned portion. The hydrophobic agent includes a perfluorinated polymer having a mean particle size ranging from about 50 nm to about 195 nm. The build material layer is exposed to energy to selectively coalesce the patterned portion and form a 3D object layer having a hydrophobic portion.Type: ApplicationFiled: September 19, 2019Publication date: August 18, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Graciela E. Negri Jimenez, Shannon Reuben Woodruff, Emre Hiro Discekici
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Publication number: 20220152922Abstract: In an example of a method for three-dimensional (3D) printing, a polymeric build material is applied to form a build material layer. A fusing agent is selectively applied, based on a 3D object model, onto the build material layer to form a patterned portion. A hydrophobic agent is selectively applied, based on the 3D object model, onto at least a portion of the patterned portion. The hydrophobic agent includes a lipophilic phase discontinuously dispersed within an aqueous phase by a surfactant, wherein the lipophilic phase includes an organosilane having a central silicon atom coupled to a C6 to C24 aliphatic or alicyclic hydro-carbon and multiple hydrolyzable groups, wherein the organosilane is present in the hydrophobic agent at from about 1 wt % to about 20 wt %. The build material layer is exposed to energy to selectively coalesce the patterned portion and form a 3D object layer having a hydrophobic portion.Type: ApplicationFiled: September 19, 2019Publication date: May 19, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Graciela E. Negri Jimenez, Emre Hiro Discekici, Shannon Reuben Woodruff
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Publication number: 20220112393Abstract: A multi-fluid kit for three-dimensional printing can include a fusing agent with water and a radiation absorber, and a detailing agent. The radiation absorber can absorb radiation energy and converts the radiation energy to heat. The detailing agent can include water and from about 0.1 wt % to about 20 wt % organosilanes based on a total weight of the detailing agent, wherein the organosilanes include an organosilane compound with a central silicon having both a water-solubilizing group and multiple hydrolyzable groups attached thereto.Type: ApplicationFiled: June 10, 2019Publication date: April 14, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Graciela E. Negri Jimenez, Michael A. Novick, Tienteh Chen, Jacob Wright