公开(公告)号：US11345087B2

公开(公告)日：2022-05-31

申请号：US16321534

申请日：2017-07-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Gioacchino Raia ,  Adrian S. Eckert ,  Bernhard Hofmann ,  Christian A. Richter ,  Bastian P. Kirchner ,  Anja Friedrich ,  Helmar B. Mayr ,  Carsten Franke ,  Gallus Schechner

IPC: B29C64/245 ,  A61C13/00 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/135 ,  B29C64/129 ,  A61C13/087 ,  B29C64/20 ,  A61C13/08 ,  B29K105/00 ,  B29K509/00 ,  B29L31/00

Abstract: A device for progressively building up an object from a light hardenable material. The device has a perforated build platform for the object. The build platform forms a build surface that faces a light source. The build platform and the light source are positionable relative to each other by computer control. The device is further configured for supplying the light hardenable material through the perforation of the build platform for building up the object. The invention enables the making of colored objects by stereolithography.

公开(公告)号：US20210386519A1

公开(公告)日：2021-12-16

申请号：US17250966

申请日：2019-10-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andreas G. Herrmann ,  Malte Korten ,  Bastian P. Kirchner ,  Daniel D. Oberpertinger ,  Philipp Jurgen Semmler ,  Anja Friedrich ,  Michaela Urban

IPC: A61C5/77 ,  A61C5/73 ,  B33Y80/00

Abstract: The invention relates to a 3d-printed dental restoration precursor, a 3d-printed array comprising a 3d-printed dental restoration precursor, a kit of parts comprising at least two 3d-printed dental restoration precursors or 3d-printed dental restorations and a process of producing such a 3d-printed array, 3d-printed dental restoration precursor or 3d-printed dental restorations. The 3d-printed dental restoration precursor comprises at least one crown unit having an outer surface and an inner surface and at least one support element having a fixation section. The support element is connected through the fixation section to the outer surface of the crown unit in a particular region.

公开(公告)号：US20210268730A1

公开(公告)日：2021-09-02

申请号：US17250254

申请日：2019-06-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Gioacchino Raia ,  Adrian S. Eckert ,  Helmar B. Mayr ,  Dietmar Blees

IPC: B29C64/182 ,  B29C64/135 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00

Abstract: A method of building up at least a first (10) and a second (20) physical workpiece from a light hardenable material (105) on a 3D printing device (100). The method has the steps of providing to the 3D printing device a first dataset for building up a first workpiece; starting a first print job based on the first dataset; providing to the same 3D printing device a second dataset for building up a second workpiece after the start the first print job; and starting a second print job based on the second dataset before finishing the first print job.

公开(公告)号：US20200337813A1

公开(公告)日：2020-10-29

申请号：US16764917

申请日：2018-11-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bastian P. Kirchner ,  Gioacchino Raia ,  Anja Friedrich ,  Daniel D. Oberpertinger ,  Malte Korten ,  Andreas G. Herrmann

IPC: A61C13/00 ,  A61C5/77 ,  B29C64/129 ,  B29C64/35 ,  B33Y40/20 ,  B33Y10/00 ,  B33Y80/00 ,  B33Y30/00

Abstract: A method of making a physical object by additive manufacturing. The method has the steps of providing a light hard-enable primary material (11), building up the object (100) by successively hardening portions of the light hardenable primary material (11) by irradiating the portions with light, coating at least a part of the object (100) with a light permeable coating or oxygen protective material; and irradiating the coated object (100) with light and thereby post-hardening any light hardenable material (11).

公开(公告)号：US20200324479A1

公开(公告)日：2020-10-15

申请号：US16769310

申请日：2018-12-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Anja Friedrich ,  Michael Jahns ,  Malte Korten ,  Christian A. Richter ,  Bastian P. Kirchner ,  Gallus Schechner ,  Daniel D. Oberpertinger ,  Wolfgang Weinmann

IPC: B29C64/35 ,  A61C5/77 ,  B08B3/10

Abstract: A system (1) for washing a 3D-printed object (4). The system (1) has a washing device (2) and a workpiece (3) that includes the 3D-printed object (4). The washing device (2) has a container (7) that forms a process chamber (8) for receiving a liquid cleaning agent (9), and the container (7) has an inlet (10) into the process chamber (8). The workpiece (3) further has a support structure (6) that supports the 3D-printed object (4) and a base (5) supporting the support structure (6). The base (5), in a mating relationship with the inlet (10), forms a restraint preventing the workpiece (3) from passing through the inlet (10) in a situation in which the workpiece (3) is placed with the 3D-printed object (4) located within the process chamber (8).

公开(公告)号：US10245126B2

公开(公告)日：2019-04-02

申请号：US15515238

申请日：2015-10-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar B. Mayr

IPC: A61C13/00 ,  A61C13/08 ,  A61C13/09 ,  G01J3/50 ,  G06T7/12 ,  G06T7/90 ,  A61B1/24 ,  G01J3/46 ,  G06T7/00 ,  A61C19/10

Abstract: A method of making a dental restoration has the steps of capturing an image of a tooth, posterizing the image, determining a tooth color structure, providing information about a multicolored block having a block color structure, matching the tooth color structure and the block color structure, based on the matching, determining a position within the block in which the tooth color structure and the block color structure match, and machining the dental restoration from the block at the determined position. The invention helps facilitating the making of dental restorations at maximized aesthetics.

公开(公告)号：US20190021815A1

公开(公告)日：2019-01-24

申请号：US16078455

申请日：2017-02-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andreas Herrmann ,  Gallus Schechner ,  Reinhold Hecht ,  Helmar B. Mayr ,  Malte Korten ,  Bernhard Hofmann ,  Gioacchino Raia ,  Till Meurer

IPC: A61C5/73 ,  A61C5/77 ,  A61C13/20

Abstract: The invention relates to a preformed dental composite crown being characterized by its shape and chemical composition, the shape being characterized as follows: having an occlusal top surface and depending buccal, mesial, distal and lingual side surfaces, the side surfaces being connected to each other and forming a crown cervix, the wall thickness of the crown at the crown cervix being lower than 0.6 mm; at least two of opposing depending side surfaces having a concave shape; the chemical composition of the material the preformed dental composite crown is made of being a hardened composition comprising the following components: nano-filler(s) in an amount from 20 to 70 wt. %, resin matrix in an amount from 20 to 75 wt. %, wt. % with respect to the weight of the chemical composition, the resin matrix comprising urethane(meth)acrylate(s) and (meth)acrylate(s) not comprising a urethane moiety. The invention also relates to a kit of parts comprising such a preformed dental composite crown, processes for producing such crowns and the use of such a crown for treating a dental tooth.

公开(公告)号：US10182892B2

公开(公告)日：2019-01-22

申请号：US14404038

申请日：2013-05-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Michael Jahns

IPC: A61C13/08 ,  A61C13/083 ,  A61C13/00 ,  A61C13/09 ,  B29C64/165

Abstract: A method of making a customized dental blank comprises the steps of providing individual tooth color information, forming an open-celled dental blank precursor, providing the open-celled dental blank precursor with color in accordance with the individual tooth color information, and compressing the dental blank precursor. The method helps maximizing the optical quality of dental restoration at minimized costs.

公开(公告)号：US11786345B2

公开(公告)日：2023-10-17

申请号：US16764917

申请日：2018-11-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bastian P. Kirchner ,  Gioacchino Raia ,  Anja Friedrich ,  Daniel D. Oberpertinger ,  Malte Korten ,  Andreas G. Herrmann

IPC: A61C13/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  A61C5/77 ,  B29C64/35 ,  B29C64/129 ,  B33Y40/20

CPC classification number: A61C13/0013 ,  A61C5/77 ,  A61C13/0019 ,  B29C64/129 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20 ,  B33Y80/00

Abstract: A method of making a physical object by additive manufacturing. The method has the steps of providing a light hardenable primary material (11), building up the object (100) by successively hardening portions of the light hardenable primary material (11) by irradiating the portions with light, coating at least a part of the object (100) with a light permeable coating or oxygen protective material; and irradiating the coated object (100) with light and thereby post-hardening any light hardenable material (11).

公开(公告)号：US11607841B2

公开(公告)日：2023-03-21

申请号：US17304596

申请日：2021-06-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carsten Franke ,  Maiken Givot ,  Malte Korten ,  Robert L. W. Smithson ,  Brian D. Goers ,  Negus B. Adefris ,  Thomas J. Anderson ,  Brian A. Shukla ,  Michael C. Harper ,  Elizaveta Y. Plotnikov

IPC: B29C64/153 ,  B24D18/00 ,  B33Y10/00 ,  B24D3/06 ,  B24D3/14 ,  B24D5/10 ,  B24D7/10 ,  B24D5/06 ,  B22F10/28 ,  B29C64/393 ,  B33Y30/00 ,  C22C29/12 ,  C22C32/00 ,  B22F10/10 ,  B22F10/73 ,  B22F12/63 ,  B22F12/67 ,  B22F10/32 ,  B22F10/34 ,  B22F10/36 ,  B22F10/366 ,  B22F10/66 ,  B33Y50/02 ,  B33Y80/00

Abstract: A method of forming a vitreous bond abrasive article is presented that includes receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying a plurality of layers of a vitreous bond abrasive article precursor. The vitreous bond abrasive article precursor includes abrasive particles bonded together by a vitreous bond precursor material and an organic compound. The vitreous bond abrasive article precursor further comprises at least one of: at least one tortuous cooling channel extending at least partially through the vitreous bond abrasive article precursor or at least one arcuate cooling channel extending at least partially through the vitreous bond abrasive article precursor. The method also includes generating, with the manufacturing device by an additive manufacturing process, the vitreous bond abrasive article precursor based on the digital object.