公开(公告)号：US11633908B2

公开(公告)日：2023-04-25

申请号：US16289737

申请日：2019-03-01

申请人： Formlabs, Inc.

发明人： Maximilian Zieringer ,  Alpay Kimyonok

IPC分类号： B29C64/129 ,  B29C35/08 ,  B33Y70/10 ,  B33Y80/00 ,  B29K75/00 ,  B33Y10/00 ,  B29K33/00

摘要： The present disclosure relates generally to curable resins, in particular latent cure resins, and related methods for use in an additive fabrication (e.g., 3-dimensional printing) device.

公开(公告)号：US11612569B2

公开(公告)日：2023-03-28

申请号：US16923933

申请日：2020-07-08

申请人： Triastek, Inc.

发明人： Xiaoling Li ,  Haohui Lu ,  Wei Wu ,  Haili Liu ,  Senping Cheng ,  Renjie Li ,  Yang Liu ,  Feihuang Deng

IPC分类号： A61K9/20 ,  B33Y70/00 ,  B29C64/209 ,  B29C64/106 ,  B29C64/393 ,  B33Y50/02 ,  B29C64/321 ,  B29C64/171 ,  B33Y10/00 ,  B33Y80/00 ,  B33Y30/00 ,  B29C64/118 ,  B29C64/295 ,  B29C64/336 ,  B29L31/00 ,  B29K33/00 ,  B29K105/00 ,  B29K1/00 ,  B33Y40/00

摘要： Provided herein are devices and systems for depositing a material or manufacturing a product, such as a pharmaceutical dosage form, by additive manufacturing. Further provided are methods of using the devices and systems, as well as methods of manufacturing a product, such as a pharmaceutical dosage form, by additive manufacturing. In certain embodiments, the device includes a material supply system configured to melt an pressurized a material, a pressure sensor configured to detect a pressure of the material within the device, and a control switch comprising a sealing needle operable in an open position and closed position. The sealing needle extends through a feed channel containing the material and includes a taper end, wherein the tapered end of the sealing needle engages a tapered inner surface of a nozzle to inhibit flow of the material through the nozzle when the sealing needle is in the closed position.

公开(公告)号：US11584809B2

公开(公告)日：2023-02-21

申请号：US16764314

申请日：2019-01-08

申请人： Denka Company Limited

发明人： Masanori Matsumoto ,  Tetsuo Noguchi ,  Kohhei Nishino

IPC分类号： C08F8/32 ,  B29C45/00 ,  C08F234/00 ,  C08L9/06 ,  C08F222/40 ,  B29K25/00 ,  B29K33/00 ,  B29K33/20 ,  B29K55/02 ,  B29K79/00 ,  B29L31/30

摘要： The present invention provides a maleimide-based copolymer, a method for producing same, and a resin composition obtained using same.
This maleimide-based copolymer contains 40-60 mass % of aromatic vinyl monomer units, 5-20 mass % of vinyl cyanide monomer units, and 35-50 mass % of maleimide monomer units, and is such that a 4 mass % tetrahydrofuran solution of the copolymer has a transmittance of 90% or more for light having a wavelength of 450 nm at an optical path length of 10 mm, and the residual maleimide-based monomer amount is less than 300 ppm. This maleimide-based copolymer preferably further contains 0-10 mass % of unsaturated dicarboxylic acid anhydride monomer units, and preferably has a glass transition temperature of 165° C. or higher.

公开(公告)号：US11584089B2

公开(公告)日：2023-02-21

申请号：US16618133

申请日：2018-05-29

申请人： Stratasys Ltd.

发明人： Yaniv Shitrit ,  Eduardo Napadensky

IPC分类号： B29C64/00 ,  B33Y10/00 ,  B29C64/40 ,  B33Y30/00 ,  B29C64/112 ,  B29C64/209 ,  B33Y70/10 ,  B29K33/00 ,  B29K509/08

摘要： A method of additive manufacturing of a three-dimensional object. The method comprises: sequentially dispensing and solidifying a plurality of layers comprising (i) a stack of model layers arranged in a configured pattern corresponding to the shape of the object and being made of a modeling material, (ii) a sacrificial structure having a stack of sacrificial layers made of an elastomeric material, and (iii) a stack of intermediate layers made of a support material having an elastic modulus less than the elastomeric material and being between the stack of model layers and the sacrificial structure; and applying a peeling force to the sacrificial structure (e.g., in dry environment) to remove the sacrificial structure, and to expose the stack of model layers and/or the stack of intermediate layers beneath the sacrificial structure.

公开(公告)号：US11566349B2

公开(公告)日：2023-01-31

申请号：US16990164

申请日：2020-08-11

申请人： U.S. Army Combat Capabilities Development Command, Army Research Laboratory

发明人： Ryan M. Dunn ,  Kevin R. Hart ,  Eric D. Wetzel

IPC分类号： D01D5/08 ,  D01D5/34 ,  D01D10/02 ,  D01F8/04 ,  D02J13/00 ,  D01F8/14 ,  B29C55/00 ,  B29C35/02 ,  D01F8/10 ,  D01F8/18 ,  D01F8/00 ,  B33Y70/00 ,  D01D5/30 ,  D01D5/24 ,  B29C64/106 ,  B29C48/91 ,  B29C71/00 ,  B29C48/16 ,  B29C64/118 ,  G02B6/02 ,  B29K69/00 ,  B29K105/08 ,  B29L31/00 ,  B29K55/02 ,  B29K33/00 ,  B29C71/02

摘要： A polymer body includes a first thermoplastic polymer, and a second thermoplastic polymer. The first thermoplastic polymer and the second thermoplastic polymer form a continuous solid structure. The first thermoplastic polymer forms an external supporting structure that at least partially envelops the second thermoplastic polymer. A first flow temperature of the first thermoplastic polymer is at least 10° C. higher than a second flow temperature of the second thermoplastic polymer. The first thermoplastic polymer may be removable by exposure to a selective solvent.

公开(公告)号：US11565026B2

公开(公告)日：2023-01-31

申请号：US17308825

申请日：2021-05-05

申请人： Northwestern University

发明人： Jian Yang ,  Evan C. Baker ,  Henry O. T. Ware ,  Fan Zhou ,  Cheng Sun ,  Guillermo A. Ameer ,  Robert Van Lith

IPC分类号： A61L31/06 ,  C08J3/24 ,  B33Y80/00 ,  B29C64/135 ,  B29C41/22 ,  B29C41/00 ,  B33Y30/00 ,  B33Y70/00 ,  B29C64/20 ,  A61L31/16 ,  A61L31/18 ,  C09D167/06 ,  B29L31/00 ,  B33Y10/00 ,  B29K33/00 ,  B29K105/00

摘要： Provided herein are methods, compositions, devices, and systems for the 3D printing of biomedical implants. In particular, methods and systems are provided for 3D printing of biomedical devices (e.g., endovascular stents) using photo-curable biomaterial inks (e.g., or methacrylated poly(diol citrate)).

公开(公告)号：US11548215B2

公开(公告)日：2023-01-10

申请号：US16625267

申请日：2017-06-30

申请人： NIKON CORPORATION ,  Essilor International ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE HAUTE-ALSACE (UHA)

发明人： Olivier Soppera ,  Manuel Theodet

IPC分类号： B29C64/135 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/264 ,  A61F2/16 ,  G02B1/04 ,  B29K33/00 ,  B29L11/00

摘要： A method of producing an optical device from a volume of a curable composition, includes the following steps: —polymerizing a first portion of the volume by irradiating an external surface of the volume with a light irradiation, thereby increasing a transmittance of the first portion for the light irradiation; —polymerizing a second portion of the volume by irradiating the second portion with the light irradiation through the external surface and the polymerized first portion, wherein the light irradiation has a light intensity varying over the external surface between a first light intensity and a second light intensity distinct from the second light intensity. A corresponding system is also described.

公开(公告)号：US11530307B2

公开(公告)日：2022-12-20

申请号：US16707161

申请日：2019-12-09

申请人： SHIN-ETSU CHEMICAL CO., LTD.

发明人： Jun Hatakeyama

IPC分类号： C08J5/18 ,  B29C41/00 ,  B29C41/12 ,  C08F222/10 ,  B29K33/00

摘要： A stretchable film is made of, at least as a top surface of the stretchable film, a cured product of a stretchable film material containing a silicone polyurethane resin. The top surface of the stretchable film has a repeated uneven pattern formed with depths of 0.1 μm to 2 mm and pitches of 0.1 μm to 5 mm. Thus, the present invention provides a stretchable film having excellent stretchability, with the film top surface being excellent in water repellency and free from sticking; and a method for forming the stretchable film.

公开(公告)号：US11458696B2

公开(公告)日：2022-10-04

申请号：US16843312

申请日：2020-04-08

申请人： JOHNS MANVILLE

发明人： Mingfu Zhang ,  Jawed Asrar

IPC分类号： B29C70/50 ,  B05C9/12 ,  B05C9/14 ,  B05C11/02 ,  B29B15/12 ,  B32B5/32 ,  B05D1/40 ,  B05D3/02 ,  B29B11/12 ,  B29B11/16 ,  B29B13/02 ,  B29B13/06 ,  B29B15/14 ,  B29C70/06 ,  C08J5/04 ,  C08K7/04 ,  D06M15/71 ,  D06M15/705 ,  D06M15/61 ,  D06M15/51 ,  B05C9/10 ,  B29C48/285 ,  B29K33/00 ,  B29K105/08 ,  B29K105/00 ,  B29L7/00 ,  B29L9/00

摘要： A thermoplastic prepreg includes a mat, web, or fabric of fibers and hollow glass microspheres that are positioned atop the mat, web, or fabric of fibers or dispersed therein. The thermoplastic prepreg also includes a thermoplastic polymer that is fully impregnated through the mat, web, or fabric of fibers and the hollow glass microspheres so that the thermoplastic prepreg has a void content of less than 3% by volume of the thermoplastic prepreg. The thermoplastic material is polymerized monomers and oligomers in which greater than 90% by weight of the monomers or oligomers react to form the thermoplastic material.

公开(公告)号：US11440272B2

公开(公告)日：2022-09-13

申请号：US16061612

申请日：2016-12-14

申请人： Magna Exteriors Inc.

发明人： John A. Ingram ,  David A. Calder ,  Daniel P. McNulty ,  Paul A. Trudeau ,  Henry E. Moore

IPC分类号： B29C70/34 ,  C08J5/04 ,  C08J5/24 ,  B29C70/08 ,  B29K33/00 ,  B29K67/00 ,  B29K707/04 ,  B29K709/08

摘要： Impregnated veil and compression molding process of reinforcing fiber pre-impregnated continuous and discontinuous thermoset and thermoplastic materials. Veils are incorporated within the process, filming or laminating stages of the pre-pregging, either hotmelt or solvent based processes, in a variety of chosen resins. The veils help to improve visual part quality, reduce fiber splitting, and provide an isolating material in applications where incompatible materials must exist.