公开(公告)号：US11639400B2

公开(公告)日：2023-05-02

申请号：US16546818

申请日：2019-08-21

申请人： RICOH COMPANY, LTD.

发明人： Takashi Matsumura ,  Tatsuya Niimi ,  Takuya Saito

IPC分类号： B29C64/188 ,  C08F20/06 ,  B29C64/264 ,  B29C64/129 ,  B33Y10/00 ,  B33Y70/00

摘要： An active energy ray curable liquid contains an unsaturated acid monomer and a metal salt.

公开(公告)号：US11639027B2

公开(公告)日：2023-05-02

申请号：US17174546

申请日：2021-02-12

申请人： CALT Dynamics Limited

发明人： Ross Lawless ,  Irene Villafane

IPC分类号： B29C64/129 ,  B29C64/188 ,  B29C64/245 ,  B29C64/236 ,  B29C64/364 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20 ,  B29C37/00 ,  B29C64/30

摘要： A system and method for continuous additive manufacturing of objects is provided. The system includes a container configured to receive a photopolymer and a print bed disposed within the container. An first end effector is movably disposed within the container. A light source is operably coupled to the first end effector, the light source being configured to emit and electromagnetic radiation. Wherein at least one of the print bed or first end effector is movable relative to the other to perform continuous separation curing of the photopolymer on the print bed with the electromagnetic radiation.

公开(公告)号：US20230079547A1

公开(公告)日：2023-03-16

申请号：US17864418

申请日：2022-07-14

申请人： Young Optics Inc.

发明人： Wei-Cheng Lo ,  You Ren Wang ,  Chang Chun Chen

IPC分类号： B29C64/321 ,  B29C64/129 ,  B29C64/295 ,  B29C64/245 ,  B33Y30/00

摘要： A 3D printing apparatus including a base plate, a transparent plate, a fluid space, a molding container, a heater, a fluid guider and a light engine is provided. The fluid space is disposed between the base plate and the transparent plate. The molding container has an accommodating space and the base plate is disposed in the accommodating space. The heater is configured to heat a fluid. The fluid guider is configured to guide the heated fluid into the fluid space. The light engine is configured to project a pixelated light on the base plate.

公开(公告)号：US11603424B2

公开(公告)日：2023-03-14

申请号：US17274635

申请日：2019-09-09

申请人： Arkema France

发明人： Guillaume Monnier

IPC分类号： C08F222/10 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/129 ,  C08F2/50 ,  C08F220/12 ,  C08F220/20 ,  B33Y80/00

摘要： The invention relates to a crosslinkable composition, which comprises a component a) at least one halogenated bisphenol A diglycidyl ether tetra(meth)acrylate and a component b) at least one diluent from mono(meth)acrylates of a monoalcohol comprising a biphenyl structure, and at least one optional component from components c), d), e), f) and g). It also relates to its use for coatings or materials, in particular for 3D printed articles for optical applications, as it also relates to the crosslinked composition and to the finished product, in particular the 3D article which results therefrom.

公开(公告)号：US20230062985A1

公开(公告)日：2023-03-02

申请号：US17899651

申请日：2022-08-31

申请人： SEIKO EPSON CORPORATION

发明人： Keigo SUGAI

IPC分类号： B29C64/232 ,  B29C64/129 ,  B29C64/209 ,  B29C64/236 ,  B29C64/241 ,  B29C64/264

摘要： A three-dimensional object printing apparatus includes a first head, an energy emitter, and a moving mechanism. The first head has a first nozzle face in which a nozzle for ejecting liquid is provided. The energy emitter has an emission face from which energy for curing the liquid ejected from the first head is emitted. The moving mechanism changes relative position of the first head and the energy emitter in relation to a three-dimensional workpiece. The moving mechanism includes a linear motion mechanism that changes the relative position of the first head and the energy emitter in relation to the workpiece along a first axis, a first up-and-down mechanism that moves the first nozzle face along a second axis intersecting with the first axis, and a second up-and-down mechanism that moves the emission face along the second axis.

公开(公告)号：US11590694B2

公开(公告)日：2023-02-28

申请号：US16887229

申请日：2020-05-29

申请人： The Procter & Gamble Company

发明人： John L. Brent, Jr. ,  Steven D. Smith ,  Jacob R. Adams

IPC分类号： B29C64/124 ,  B33Y10/00 ,  B33Y80/00 ,  B29C64/321 ,  B29C64/277 ,  B29C64/129 ,  B33Y70/10 ,  D21F1/00 ,  B33Y30/00 ,  B29K105/08 ,  B29L31/48 ,  B29L31/00 ,  B29K105/00 ,  D21F11/00

摘要： A method for manufacturing a deflection member is disclosed. The method may include the step of incorporating a monomer, a photoinitiator system, a photoinhibitor, and/or a reinforcing member. A further step includes blending the monomer, photoinitiator, and/or photoinhibitor to form a blended photopolymer resin. Further steps may be emitting a first wavelength and emitting a second wavelength. A further step may be polymerizing the monomer to form a resinous framework comprising protuberance locked-on to the reinforcing member.

公开(公告)号：US11584081B2

公开(公告)日：2023-02-21

申请号：US17549315

申请日：2021-12-13

申请人： Stratasys, Inc.

发明人： Joel Ong ,  Christopher Prucha ,  Stephanie Benight ,  Bill Buel

IPC分类号： B29C64/295 ,  B29C64/124 ,  B29C64/364 ,  B29C64/393 ,  B29C64/135 ,  B33Y50/02 ,  B33Y10/00 ,  B29C64/255 ,  B29C64/232 ,  B29C64/129 ,  B33Y40/00 ,  B33Y30/00

摘要： A method for additive manufacturing includes: at a build tray arranged over a build window and containing a resin reservoir of a resin, heating the resin reservoir toward a target bulk resin temperature less than a heat deflection temperature of the resin in a photocured state; at a resin interface between a surface of the build window and the resin reservoir, heating an interface layer of the resin reservoir toward a target reaction temperature; and, in response to the resin reservoir exhibiting a first temperature proximal the target bulk resin temperature and to the interface layer exhibiting a second temperature proximal the target reaction temperature: at the resin interface, selectively photocuring a first volume of the resin to form a first layer of a build adhered to a build platform; and retracting the build platform away from the build window.

公开(公告)号：US20230019395A1

公开(公告)日：2023-01-19

申请号：US17377823

申请日：2021-07-16

申请人： Hirsch Dynamics Holding AG

发明人： Markus HIRSCH

IPC分类号： B29C64/277 ,  B29C64/393 ,  B29C64/245 ,  B29C64/129

摘要： A method for manufacturing an object, in particular an orthodontic appliance, by a 3D-printing device comprising a supply device for provision of a non-solidified material and means for illumination to solidify a layer of non-solidified material provided by the supply device at least zonally to fabricate the object, characterized by the following steps: a virtual model of the object to be printed is provided for the 3D-printing device, the supply device provides a layer of the non-solidified material, the means for illumination solidify the layer at least zonally, whereby the means for illumination comprises illumination pixels arranged in a grid, preferably with a dimension (between 10 μm and 80 μm, particularly preferred between 30 μm and 50 μm, wherein at least one dimension of the object represented by the virtual model is chosen to be aligned with the dimension of the illumination pixels.

公开(公告)号：US11554539B2

公开(公告)日：2023-01-17

申请号：US16627955

申请日：2017-07-28

申请人： NIKON CORPORATION ,  ESSILOR INTERNATIONAL

发明人： Christophe Provin ,  Akiko Miyakawa

IPC分类号： C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  B29C64/129 ,  B33Y80/00 ,  G03F7/00 ,  B33Y70/00

摘要： A photocurable composition for three-dimensional stereolithography which has a lower viscosity and from which a cured product having a high refractive index is obtained, and a three-dimensional object formed by using the composition. The composition is a photocurable composition for three-dimensional stereolithography containing a fluorene monomer, a carbazole monomer, a diluent monomer, and a photopolymerization initiator, the carbazole monomer being contained in an amount of less than 30 wt % with respect to the total amount of the fluorene monomer and the carbazole monomer, and the diluent monomer being contained in an amount of at least 20 wt % with respect to total solids.

公开(公告)号：US20220410492A1

公开(公告)日：2022-12-29

申请号：US17902221

申请日：2022-09-02

申请人： SprintRay Inc.

发明人： Amir Mansouri ,  Hossein Bassir ,  Aayush Patel ,  Huijian Tian

IPC分类号： B29C64/393 ,  B29C64/129 ,  B33Y30/00 ,  B29C64/264 ,  B33Y50/02 ,  B29C64/295 ,  B29C64/135 ,  B29C64/106 ,  B29C64/277 ,  B29C64/124

摘要： The present subject matter is directed towards a system and a method for selectively post-curing a three-dimensional (3D-printed) object to attain variable properties. The system comprises a selective post-curing chamber coupled to a computer in communication with a database for accessing a digital model or data concerning the 3D-printed object. The chamber comprises a movable light source assembly and a mounting platform for supporting at least one 3D-printed object thereon. The computer includes one or more executable instructions for selectively emitting a curing light onto the 3D-printed object along a predetermined curing toolpath based on the digital model. The curing of the 3D-printed object along the predetermined curing toolpath generates variable properties along different regions of the 3D-printed object.