公开(公告)号：US12233606B2

公开(公告)日：2025-02-25

申请号：US18520708

申请日：2023-11-28

Applicant: Stratasys Ltd.

Inventor： Yuval Vidavsky ,  Dani Peri ,  Mariana Pokrass ,  Avraham Levy ,  Eynat Matzner

IPC: B29C64/40 ,  B29C35/08 ,  B29C64/112 ,  B29C64/35 ,  B29K33/04 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  C08F2/48 ,  C08F220/28 ,  C08F283/06 ,  C11D3/04 ,  C11D3/08 ,  C11D7/06 ,  C11D7/14 ,  G03F7/00 ,  G03F7/027 ,  G03G9/087

Abstract: Novel support material formulations, characterized as providing a cured support material with improved dissolution rate, while maintaining sufficient mechanical strength, are disclosed. The formulations comprise a water-miscible non-curable polymer, a first water-miscible, curable material and a second, water-miscible material that is selected capable of interfering with intermolecular interactions between polymeric chains formed upon exposing the first water-miscible material to curing energy. Methods of fabricating a three-dimensional object, and a three-dimensional object fabricated thereby are also disclosed.

公开(公告)号：US12208567B2

公开(公告)日：2025-01-28

申请号：US18126512

申请日：2023-03-27

Applicant: Stratasys Ltd.

Inventor： Lev Kuno

IPC: B29C64/112 ,  B33Y10/00 ,  B33Y70/00 ,  C08L79/04 ,  C09D11/101 ,  C09D11/38

Abstract: A formulation system usable in additive manufacturing of a three-dimensional object that comprises, in at least a portion thereof, a cyanate ester-containing polymeric network, and additive manufacturing processes employing the formulation system are provided. Also provided are objects obtainable by the additive manufacturing and kits containing the formulation system. The formulation system includes a first modeling material formulation which includes a first curable material which is a thermally-curable cyanate ester and a second modeling material formulation which comprises an activating agent for promoting polymerization of the cyanate ester and is devoid of the first curable material, and further includes a second curable material which is different from the first curable material, and optionally an agent for promoting hardening of the second curable material.

公开(公告)号：US12208566B2

公开(公告)日：2025-01-28

申请号：US17600360

申请日：2020-03-30

Applicant: Stratasys Ltd.

Inventor： Barak Glassman

IPC: B29C64/112 ,  B29C64/194 ,  B29C64/241 ,  B29C64/245 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method of fabricating an object in layers, comprises, for at least one layer: dispensing a building material formulation to form a first portion of the layer, and leveling the first portion by a leveling device; increasing a vertical distance between the first portion and the leveling device; and while a topmost surface of the first portion is exposed and beneath a segment of the leveling device: dispensing a building material formulation to form a second portion of the layer, laterally displaced from the first portion along an indexing direction, and leveling the second portion by the leveling device.

公开(公告)号：US12202207B2

公开(公告)日：2025-01-21

申请号：US18121721

申请日：2023-03-15

Applicant: STRATASYS LTD.

Inventor： Shai Lipowitch ,  Yoav Bressler ,  Shahar Klinger ,  Yosef Meller

IPC: B29C64/393 ,  B29C64/112 ,  B29C64/209 ,  B33Y50/02 ,  B33Y10/00

Abstract: Methods and systems are disclosed for selecting a print head of a 3D printing machine to apply 3D printing material at one or more positions in a printed 3D object. Embodiments of the present invention may include, in the selection process one or more elements pertaining for example to: geometry of the received 3D model; colorization of the received 3D model; transparency of the received 3D model; properties of the 3D printing material; and constraints of the 3D printing machine.

公开(公告)号：US20240262038A1

公开(公告)日：2024-08-08

申请号：US18574861

申请日：2022-06-30

Applicant: Stratasys Ltd.

Inventor： Murielle SAYADA ,  Jankiel KIMELBLAT

IPC: B29C64/357 ,  B29C64/112 ,  B29C64/40 ,  B33Y10/00 ,  B33Y40/20

CPC classification number: B29C64/357 ,  B29C64/40 ,  B33Y10/00 ,  B33Y40/20 ,  B29C64/112

Abstract: Method and kits for handling an aqueous waste solution or dispersion obtained upon removing a water-miscible support material from a three-dimensional object during additive manufacturing of the object, and additive manufacturing processes utilizing same are provided. The methods and kits utilize a super absorbent polymeric material to convert the liquid waste solution to a solid or semi-solid composition.

公开(公告)号：US12042985B2

公开(公告)日：2024-07-23

申请号：US17418973

申请日：2019-12-26

Applicant: Stratasys Ltd.

Inventor： Yaniv Hirschsohn ,  Lior Zonder ,  Ohad Shitrit ,  Cesar M. Manna

IPC: B29C64/153 ,  B29C64/314 ,  B33Y10/00 ,  B33Y70/00 ,  B82Y30/00 ,  B29K33/00 ,  B29K509/00 ,  B33Y80/00

CPC classification number: B29C64/153 ,  B29C64/314 ,  B33Y10/00 ,  B33Y70/00 ,  B29K2033/08 ,  B29K2509/00 ,  B33Y80/00 ,  B82Y30/00

Abstract: Formulations usable in additive manufacturing of a three-dimensional object, which comprise a reinforcing material such as silica particles in an amount of from 10 to 30%, or from 15 to 20%, by weight, of the total weight of the formulation, and a designed combination of curable materials as described in the specification, is provided. Additive manufacturing of three-dimensional objects made of such a formulation and featuring enhanced mechanical properties, and objects obtained thereby are also provided.

公开(公告)号：US11939468B2

公开(公告)日：2024-03-26

申请号：US18076478

申请日：2022-12-07

Applicant: Stratasys Ltd.

Inventor： Mazi Amiel-Levy ,  Shiran Lupo ,  Tal Ely ,  Daniel Dikovsky

IPC: B33Y70/00 ,  B29C64/106 ,  B29C64/393 ,  B33Y40/00 ,  B33Y40/10 ,  C08K3/36 ,  C08L71/02 ,  B29K71/00 ,  B29K105/00 ,  B33Y50/02 ,  B33Y80/00

CPC classification number: C08L71/02 ,  B29C64/106 ,  B29C64/393 ,  B33Y40/00 ,  B33Y40/10 ,  B33Y70/00 ,  C08K3/36 ,  B29K2071/02 ,  B29K2105/0085 ,  B33Y50/02 ,  B33Y80/00

Abstract: Modeling material formulations and formulation systems usable in additive manufacturing of a three-dimensional object, featuring, when hardened, a Shore A hardness lower than 10 and/or a Shore 00 hardness lower than 40, are provided. Additive manufacturing processes utilizing these formulations and formulation systems, and three-dimensional objects obtainable thereby, are also provided.

公开(公告)号：US20240051220A1

公开(公告)日：2024-02-15

申请号：US18383494

申请日：2023-10-25

Applicant: Stratasys Ltd.

Inventor： Gregory BRUSILOVSKI ,  Uri GRACH ,  Boaz Max PEREK

IPC: B29C64/112 ,  B29B13/02 ,  B33Y40/10 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/295 ,  B29C64/209 ,  B29C64/393 ,  B29C64/336 ,  B29C67/00

CPC classification number: B29C64/112 ,  B29B13/022 ,  B33Y40/10 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/295 ,  B29C64/209 ,  B29C64/393 ,  B29C64/336 ,  B29C67/0007 ,  B29C2035/0283

Abstract: An additive manufacturing (AM) system includes a carriage that deposits material in a defined pattern and a building platform that receives material deposited from the carriage. The carriage includes a pre-heating assembly with a plurality of pre-heating chambers and a printing block with a plurality of slots for receiving a plurality of printing heads. The carriage is equipped with more pre-heating chambers than head slots.

公开(公告)号：US11897187B2

公开(公告)日：2024-02-13

申请号：US16914392

申请日：2020-06-28

Applicant: Stratasys Ltd.

Inventor： Mayan Rumbak ,  Eduardo Napadensky ,  Gavish Mida

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

CPC classification number: B29C64/112 ,  B29C64/209 ,  B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10 ,  B29K2033/12 ,  B29K2509/08 ,  B29K2995/0021 ,  B29K2995/0098

Abstract: A method of additive manufacturing of a three-dimensional object includes sequentially dispensing and solidifying a plurality of layers. The plurality of layers may be formed with a plurality of different colored model materials, a flexible material arranged in a configured pattern to form a sacrificial structure at least partially encompassing the object, and a soft material. The soft material is arranged in a configured pattern to provide separation between the model material and the sacrificial structure. The plurality of different colored model materials is arranged in a configured pattern corresponding to the shape and color definition of the object.

公开(公告)号：US11890816B2

公开(公告)日：2024-02-06

申请号：US17264043

申请日：2019-07-30

Applicant: STRATASYS LTD.

Inventor： Lior Elgali ,  Dror Kasimov ,  Yoav Bressler ,  Shai Lipowitch

IPC: B29C64/393 ,  B29C64/336 ,  H04N1/60 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y70/00

CPC classification number: B29C64/393 ,  B29C64/336 ,  H04N1/60 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y70/00

Abstract: A system and a method of mitigating color discrepancies in three-dimensional (3D) printing systems may including a plurality of printing heads may include: printing one or more samples according to one or more sample parameters; obtaining a color offset vector from the one or more samples; receiving a model representing a 3D object, the model comprising a plurality of model printing points associated with respective color; analyzing the model in view of the obtained color offset vector to produce a calibrated data structure, adapted to mitigate color discrepancies; and printing the 3D object according to the calibrated data structure.