3d Systems, Inc.

Other

Corning Incorporated

Khalil M Moussa

Mehrgan Khavari

Scott Broce

John S Stockwell

Pingyong Xu

Hop D Nguyen

Chris Robert Manners

Ronald E Johnson

Jin Hong Lim

Martin Johnson

Lung-Ming Wu

Kenneth J Newell

John D Clay

Stephen Ruatta

Nickalaus Podgursky

Hongqing V Wang

Leigh Herran

Stephen D Hanna

Chris Roberts Manners

Catherine Hinczewski

Charles H Zenuk

Rajeev Kulkami

John S Deeken

Monica Keilsohn

Michael Brady

Kabir Bhatia

Cathy Yenly Vu Phan

Jiaching Liu

Pavan Kumar

Hernando Vicente Angulo

Jenny Reilly

Terry Wilkes

Nickalaus K Podgursky

Additives for three-dimensional build materials or inks are described herein which, in some embodiments, can impart one or more structural enhancements to articles printed from the build materials. In one aspect, a polymerizable liquid comprises at least one additive including a plurality of cyclopolymerizable functionalities separated by an aliphatic linker or alkylene oxide linker.

Additives for build materials and associated printed 3D articles

Build materials for 3D printing applications are described herein which, in some embodiments, comprise monomeric species operable for producing articles with high Tand/or high heat deflection temperature while maintaining shelf stability. In one aspect, a polymerizable liquid comprises at least 20 weight percent isocyanurate polyacrylate; a photoinitiator component; and a crystallization inhibitor component comprising monomeric curable material, oligomeric curable material or mixtures thereof, wherein the polymerizable liquid does not exhibit crystallization over a period of 28 days at a storage temperature of 5-10° C.

Shelf-stable build materials for 3D printing

In one aspect, build materials for use with a three-dimensional (3D) printing system are described herein. In some embodiments, a build material described herein comprises an acrylate component, a photoinitiator component, a non-curable absorber component, and water. The photoinitiator component of the build material is operable to initiate curing of the acrylate component and/or other curable materials that may optionally be present when the photoinitiator is exposed to incident curing radiation having a Gaussian distribution of wavelengths and a peak wavelength λ. The build material has a penetration depth (D) and a critical energy (E) at the wavelength λ. In some embodiments, the Dis greater than 200 μm and less than 300 μm, and the Eis 3-12 mJ/cm. In other embodiments, the Dis greater than 10 μm and less than 50 μm, and the Eis 5-40 mJ/cm.

Hydrogels for 3D printing having high resolution

Additives for three-dimensional build materials or inks are described herein which, in some embodiments, can impart flame retardant properties and/or structural enhancements to articles printed from the build materials. In some embodiments, such an additive comprises a compound of Formula I herein, wherein L and Z are ring substituents comprising at least one polymerizable point of unsaturation, and wherein Rand Rare independently selected from the group consisting of alkylene and alkenylene, and R-Reach represent one to four optional ring substituents, each one of the one to four ring substituents independently selected from the group consisting of alkyl, heteroalkyl, haloalkyl, halo, hydroxyl, alkoxy, amine, amide, and ether, and wherein n is an integer from 1 to 7.

In one aspect, inks for use with a three-dimensional (3D) printing system are described herein. In some embodiments, an ink described herein comprises up to 80 wt. % oligomeric curable material; up to 80 wt. % monomeric curable material; up to 10 wt. % photoinitiator; up to 1 wt. % non-curable absorber material; and up to 10 wt. % one or more additional components, based on the total weight of the ink, and wherein the total amount of the foregoing components is equal to 100 wt. %. Additionally, the photoinitiator is operable to initiate curing of the oligomeric curable material and/or the monomeric curable material when the photoinitiator is exposed to incident curing radiation having a peak wavelength λ. Moreover, the ink has a penetration depth (D), a critical energy (E), and a print through depth (D) at the wavelength λ of less than or equal to 2×D.

Inks for 3D printing having low print through depth

Polymerizable liquids for 3D printing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed from the build materials. The polymerizable liquids may also impart desirable mechanical properties to the articles. In some embodiments, a polymerizable liquid comprises a curable isocyanurate component in an amount of at least 20 wt. %, based on total weight of the polymerizable liquid, and an organophosphate component comprises one or more organophosphate compounds. In some embodiments, the polymerizable liquid further comprises an acrylate component.

Flame resistant build materials and associated printed 3D articles

Polymerizable liquids for 3D printing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed from the liquids. The polymerizable liquids may also impart desirable mechanical properties to the articles. In some embodiments, a polymerizable liquid comprises a curable isocyanurate component in an amount of at least 5 wt. %, based on total weight of the polymerizable liquid, and a brominated acrylate ester component. Additionally, methods of printing three-dimensional articles using said polymerizable liquids are described herein.

In one aspect, inks for use with a three-dimensional (3D) printing system are described herein. In some embodiments, an ink described herein comprises 20-60 wt. % oligomeric curable material; 10-50 wt. % cyclocarbonate (meth)acrylate monomer; and 0.1-5 wt. % photoinitiator, based on the total weight of the ink. Additionally, in some cases, the ink further comprises one or more additional curable materials differing from the oligomeric curable material and the cyclocarbonate (meth)acrylate monomer. An ink described herein, in some embodiments, also comprises one or more additional component that are non-curable.

Inks for 3D printing having low polymerization shrinkage

Build materials for 3D printing applications are described herein which, in some embodiments, comprise a dye component operable to alter spectral characteristics of the printed part over the course of the build cycle. In some embodiments, for example, the dye component can provide desirable light penetration depth during article printing and sufficient optical clarity during final light curing processes.

Optically active build materials for 3D printing

Growing community of inventors

Stevenson Ranch, CA, United States of America

Khalil M Moussa