公开(公告)号：US12070368B2

公开(公告)日：2024-08-27

申请号：US17274208

申请日：2019-09-18

Applicant: Stratasys, Inc.

Inventor： Dirk Achten ,  Roland Wagner ,  Christoph Tomczyk ,  Thomas Buesgen

IPC: A61C7/08 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y10/00

CPC classification number: A61C7/08 ,  B33Y70/00 ,  B33Y80/00 ,  A61C2201/00 ,  B33Y10/00

Abstract: The present invention relates to an orthodontic splint made of a crosslinked polymer, wherein the crosslinked polymer has a glass transition temperature Tg, determined by means of dynamic-mechanical analysis at a frequency of 1/s DMA as peak tan δ, of ≥25° C. and ≤60° C., a modulus of elasticity, determined by means of dynamic-mechanical analysis as the storage modulus E′ at a frequency of 1/s at 35° C., of ≥500 MPa and ≤4000 MPa, and a loss factor tan δ, determined by means of dynamic-mechanical analysis at a frequency of 1/s at 35° C., of ≥0.08. The invention further relates to a process for producing such splints.

公开(公告)号：US12036737B2

公开(公告)日：2024-07-16

申请号：US17291669

申请日：2019-12-02

Applicant: STRATASYS, INC.

Inventor： Dirk Achten ,  Nicolas Degiorgio ,  Jonas Kuenzel ,  Jari Birth ,  Thomas Buesgen

IPC: B29C64/30 ,  B29C51/02 ,  B29C51/14 ,  B29C64/118 ,  B33Y10/00 ,  B33Y40/20

CPC classification number: B29C64/30 ,  B29C51/02 ,  B29C51/14 ,  B29C64/118 ,  B33Y10/00 ,  B33Y40/20

Abstract: The present invention relates to a method for functionalizing a workpiece surface, comprising the following steps: a) providing a workpiece; b) providing a film; c) functionalizing at least one film side by the location-selective application of a functionalization composition comprising a polymer material onto part of the film side in one or more layers by means of a 3D printing process; d) creating an integrally bonded or interlocking connection between the workpiece surface and the film functionalized in step c) by bringing the film into contact with at least part of the workpiece surface, wherein the integrally bonded or interlocking connection to the workpiece surface is achieved with a functionalized film side. The invention further relates to workpieces having a surface functionalized according to the invention.

公开(公告)号：US20230405921A1

公开(公告)日：2023-12-21

申请号：US18456640

申请日：2023-08-28

Applicant: STRATASYS INC.

Inventor： Dirk Achten ,  Thomas Busgen ,  Nicolas Degiorgio ,  Levent Akbas ,  Roland Wagner ,  Peter Reichert ,  Jurgen Hattig

IPC: B29C64/141 ,  A47C23/00 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y80/00 ,  C08G18/08

CPC classification number: B29C64/141 ,  A47C23/002 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y80/00 ,  C08G18/14 ,  B29C64/153

Abstract: It is a feature of a use of an elastic polymer for production of a porous body (in an additive manufacturing method that the porous body comprises a three-dimensional network of node points joined to one another by struts, and a void volume present between the struts, where the struts have an average length of ≥200 μm to ≤50 mm and the struts (100) have an average thickness of ≥100 μm to ≤5 mm. The polymer here is an elastomer selected from the following group: thermoset polyurethane elastomers (PUR), thermoplastic copolyamides (TPA), thermoplastic copolyesters (TPC), thermoplastic olefin-based elastomers (TPO), styrene block copolymers (TPS), thermoplastic urethane-based elastomers (TPU), crosslinked thermoplastic olefin-based elastomers (TPV), thermoplastic polyvinyl chloride-based elastomers (PVC), thermoplastic silicone-based elastomers and a combination of at least two of these elastomers.

公开(公告)号：US12195577B2

公开(公告)日：2025-01-14

申请号：US17781113

申请日：2020-12-14

Applicant: Stratasys, Inc.

Inventor： Dirk Achten ,  Thomas Buesgen ,  Mathias Matner ,  Bettina Mettmann ,  Bernd Garska ,  Michael Kessler ,  Peter Reichert ,  Roland Wagner ,  Thomas Prenveille

IPC: B29C64/10 ,  B29C64/112 ,  B29C64/118 ,  B29C64/153 ,  B29C64/165 ,  B29C64/314 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  C08G18/32 ,  C08G18/42 ,  C08G18/48 ,  C08G18/66 ,  C08G18/73 ,  C08G18/75 ,  C08L75/08 ,  C08L75/14 ,  B29K75/00

Abstract: A method for producing an object comprises the step of producing the object by means of an additive manufacturing process from a construction material. The construction material comprises a first polyurethane polymer which has: a weight percentage ratio of O to N of ≥2 to ≤2.5, determined by elementary analysis; a weight percentage ratio of N to C of ≥0.1 to ≤0.25, determined by elementary analysis; a full-width at half maximum of the melting peak of ≤20 K, determined by dynamic differential scanning calorimetry DSC (2nd heating at heating rate 20 k/min); and a difference between the melting temperature and the recrystallisation temperature of ≥5 K and ≤100 K, determined by dynamic differential scanning calorimetry DSC (2nd heating) at a heating and cooling rate of 20 K/min.