Hewlett-packard Development Company, L.p.

Hewlett-packard Company

Novartis Ag

Nektar Therapeutics

Alliance Pharmaceutical Corp.

Inhale Therapeutic Systems, Inc.

Novartis Pharma Ag

Other

Hp Indigo B.v.

Imcor Pharmaceutical Company

Hewlett-packard Indigo B.v.

Alexey S Kabalnov

Ernest George Schutt

Jeffry G Weers

Thomas E Tarara

Stephen G Rudisill

Luis A Dellamary

Vladek P Kasperchik

Ali Emamjomeh

Shannon Reuben Woodruff

Keshava A Prasad

Jacob Wright

Hector Jose Lebron

Patricia A Wang

Graciela Emma Negri Jimenez

Thomas Michael Sabo

Jesiska Tandy

Jake Wright

Matthew Allen Shepherd

Jay Stephen Gondek

Sterling Chaffins

Stephen William Bauer

Zeying Ma

Kevin P Dekam

Sean P McClelland

Winthrop D Childers

Sivapackia Ganapathiappan

Lihua Zhao

Albert Teishev

Howard S Tom

Emre Hiro Discekici

David M Schut

Jong-Souk Yeo

Brian Eugene Curcio

Erica Montei Fung

Yaron Grinwald

Kristopher J Erickson

Charles G Dupuy

Bernardo A Gutierrez

David H Klein

Leo A Trevino

Mehrgan Khavari

Shirley Lee

Cassady Sparks Roop

Michael A Novick

Mark H Kowalski

Gary W Byers

Craig M Gates

Mark C Huth

Amiya K Chatterjee

Johnathon Holroyd

Raffaella Fior

Morgan Thomas Schramm

Dennis Z Guo

David Michael Ingle

Gil Bar-Haim

Geoffrey Schmid

Zia Ur Rehman

Yi Feng

Reut Avigdor

Loren E Johnson

Mary E Austin

Donald E Wenzel

Eyal Bachar

Vanessa Verzwyvelt

Esteve Comas Cespedes

Marc Klein

Dennis J Schissler

Guang Jin Li

Paul Tyrell

Pablo Antonio Murciego Rodriguez

Vladislav Kaploun

Daniel Tanchangco

Luanne J Rolly

Alina Grishman

Marlene Ann McGorrin

Shao-Wei Li

Danny Feldman

Jason Christopher Butler

David William Jenkins

Eyal Bodinger

Thomas Jeffrey Winter

Elizabeth A Fellner

Hakan Wennerstrom

Naomi Oak

Behrang Khorsandian

Jeffrey G Weers

Chorng Ing Sow

Graciela Negri

Kevin G Miller

Tadashi Yoshida

Jacob Tyler Wright

Guang-Jin Li

Jin Li Guang

Chorng Sow

The present disclosure describes multi-fluid kits for three-dimensional printing, materials kits for three-dimensional printing, and methods of making three-dimensional printed articles. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and a pore-promoting agent. The fusing agent can include water and a radiation absorber. The radiation absorber can absorb radiation energy and convert the radiation energy to heat. The pore-promoting agent can include water and a water-soluble pore-promoting compound. The pore-promoting compound can chemically react at an elevated temperature to generate a gas.

Three-dimensional printing with pore-promoting agents

The present disclosure is drawn to a composite particulate build material, including 92 wt % to 99.5 wt % polymeric particles having an average size from 10 μm to 150 μm and an average aspect ratio of less than 2:1. The composite particulate build material further includes from 0.5 wt % to 8 wt % reinforcing particles having an average size of 0.1 μm to 20 μm and an average aspect ratio of 3:1 to 100:1 applied to surfaces of the polymeric particles, wherein the reinforcing particles include mica or glass.

Composite particulate build materials

A multi-fluid kit for three-dimensional printing includes a fusing agent and a fluorescing detailing agent. The fusing agent includes water and a radiation absorber. The radiation absorber absorbs radiation energy and converts the radiation energy to heat. The fluorescing detailing agent includes water and a fluorescent colorant that is active by exposure to ultraviolet energy to emit light in the visible range of from about 400 nm to about 780 nm. The multi-fluid kit is devoid of a second detailing agent and a second fluorescent colorant.

Three-dimensional printing

The present disclosure is drawn to 3-dimensional printed parts that can include a conductive composite portion and an insulating portion. The conductive composite portion can include a matrix of fused thermoplastic polymer particles interlocked with a matrix of sintered elemental transition metal particles. The insulating portion can include a matrix of fused thermoplastic polymer particles that are continuous with the matrix of fused thermoplastic polymer particles in the conductive composite portion. The insulating portion can be substantially free of sintered elemental transition metal particles and can include transition metal oxide bronze particles.

3-dimensional printed parts

Disclosed herein are kits, methods, systems, and compositions for threedimensional printing. In an example, disclosed herein is a multi-fluid kit for threedimensional printing comprising: a marking agent comprising a marking component which is a fluorescent color agent that is activated by ultraviolet radiation to emit light in the visible range of from about 400 nm to about 780 nm; a first fusing agent; a second fusing agent different from the first fusing agent; and a detailing agent.

An example of a dispersion includes cesium tungsten oxide nanoparticles, a zwitterionic stabilizer, and a balance of water. An example of a jettable composition includes cesium tungsten oxide nanoparticles, a zwitterionic stabilizer, a surfactant, a co-solvent, and a balance of water. A method for improving the stabilization of a jettable composition includes incorporating a zwitterionic stabilizer in the jettable composition, which includes the cesium tungsten oxide nanoparticles, the surfactant, the co-solvent, and the balance of water.

Dispersion and jettable composition containing cesium tungsten oxide nanoparticles and a zwitterionic stabilizer

In one example a system is for post-processing a three-dimensional (3D) object generated in an additive manufacturing process in which an identifiable agent is applied to a portion of a build material to form a portion of the 3D object. The system comprises an identification unit and a sensor. The identification unit is to cause the identifiable agent to become distinguishable to thereby cause the portion of the 3D object, corresponding to the portion of build material to which the identifiable agent was applied, to be distinguishable from any build material remnant disposed on the 3D object and to which no identifiable agent was applied. The sensor is to distinguish the build material remnant from the portion of the 3D object.

Post-processing in additive manufacturing

This disclosure describes three-dimensional printing kits, methods, and systems for three-dimensional printing with phosphorescent pigments. In one example, a three-dimensional printing kit can include a powder bed material and a low-tint fusing agent. The powder bed material can include polymer particles and phosphorescent pigment particles mixed with the polymer particles. The low-tint fusing agent can include water and an electromagnetic radiation absorber. The electromagnetic radiation absorber can absorb radiation energy and convert the absorbed radiation energy to heat.

Three-dimensional printing with phosphorescent pigments

The present disclosure is drawn to a composite particulate build material, including 92 wt % to 99.5 wt % polymeric particles having an average size from 10 &#x3bc;m to 150 &#x3bc;m and an average aspect ratio of less than 2:1. The composite particulate build material further includes from 0.5 wt % to 8 wt % reinforcing particles having an average size of 0.1 &#x3bc;m to 20 &#x3bc;m and an average aspect ratio of 3:1 to 100:1 applied to a surface of the polymeric particles.

According to examples described herein, methods, compositions, and agents comprising an antistatic agent are described. According to one example, a fusing agent composition for three-dimensional printing can comprise: at least one antistatic agent in an amount of from about 0.01 wt % to about 20 wt % based on a total weight of the fusing agent composition, at least one near infrared absorbing compound, at least one surfactant, at least one organic solvent, and water.

Disclosed herein are compositions for three-dimensional printing. In an example, disclosed herein is a composition for three-dimensional printing comprising: (A) a powder build material; (B) a first fusing agent; (C) a second fusing agent different from the first fusing agent; (D) a detailing agent; (E) a cyan ink composition; (F) a yellow ink composition; (G) a magenta ink composition; and (H) a black ink composition.

Three-dimensional printing compositions

The present disclosure is drawn to material sets and 3-dimensional printing systems that include a fusing agent. One example of a material set can include a fusing agent and a detailing agent. The fusing agent can include water, a carbon black pigment, and a water-soluble co-solvent in an amount from 20 wt % to 60 wt %. The detailing agent can include water and a black dye. In another example, a material set can include a fusing agent and a thermoplastic polymer powder.

Material sets

The present disclosure is drawn to material sets for 3-dimensional printing. The material set can include a thermoplastic polymer powder having an average particle size from 20 &#x3bc;m to 200 &#x3bc;m, a conductive fusing agent composition including a transition metal, and nonconductive fusing agent composition. The nonconductive fusing agent composition can include transition metal oxide bronze particles.

A nanoparticle used in 3D printing is disclosed herein. In an example, the nanoparticle can comprise: at least one metal oxide, which absorbs infrared light in a range of from about 780 nm to about 2300 nm and is shown in formula (1):MM'O&#x2003;&#x2003;(1)wherein M is an alkali metal, m is greater than 0 and less than 1, M&#x2032; is any metal, and n is greater than 0 and less than or equal to 4; and a bilayer-forming surfactant encapsulating at least a portion of the metal oxide, wherein the nanoparticle has a diameter of from about 0.1 nm to about 500 nm.

Infrared absorbing nanoparticle(s)

Growing community of inventors

Corvallis, OR, United States of America

Alexey S Kabalnov