公开(公告)号：US20230158735A1

公开(公告)日：2023-05-25

申请号：US17910506

申请日：2021-04-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gareth A. Hughes ,  Jeffrey N. Bartow ,  Steven J. Ilkka

IPC: B29C64/124 ,  B29C64/40 ,  B33Y10/00 ,  B33Y80/00 ,  B32B5/02 ,  B32B7/12 ,  B32B27/08 ,  B32B27/12 ,  B32B27/32

CPC classification number: B29C64/124 ,  B29C64/40 ,  B33Y10/00 ,  B33Y80/00 ,  B32B5/022 ,  B32B7/12 ,  B32B27/08 ,  B32B27/12 ,  B32B27/32 ,  B32B2250/02 ,  B32B2038/0076

Abstract: The present disclosure provides a method of making an additive manufactured article. The method includes: a) attaching a multilayer structure (300, 500) to a build platform (210); b) selectively curing a photocurable composition (219) that is in contact with a porous layer (330, 530) of the multilayer structure, thereby forming an object attached to the porous layer; and c) separating the object from the build platform. The multilayer structure includes an adhesive layer (310, 510), an impermeable layer (320, 520) attached to the adhesive layer, and a porous layer (330, 530) attached to the impermeable layer. The adhesive layer of the multilayer structure is attached to the build platform. The present disclosure also provides an object made by the method, and the multilayer article used in the method. Use of the multilayer article assists in improving adhesion between the build platform and the object.

公开(公告)号：US20220395961A1

公开(公告)日：2022-12-15

申请号：US17775639

申请日：2020-12-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tianyu Wu ,  Gareth A. Hughes ,  Bruce A. Sventek ,  Fabian Stolzenburg ,  Jing Chen ,  Gregory A. Kobussen ,  Robert L.W. Smithson

IPC: B24D3/34 ,  B24D18/00 ,  B33Y10/00 ,  B33Y70/10 ,  B29C64/124

Abstract: The present disclosure provides a polymer bond abrasive article formed of a continuous photocured polymer matrix having abrasive particles retained therein. The photocured polymer matrix includes at least one of an optical brightener or a light absorber, and the polymer bond abrasive article has a three-dimensional shape. An abrasive tool is also provided, including the abrasive article affixed to a shaft or a pad. Further, a method of making the polymer bond abrasive article is provided, including a) obtaining a photocurable composition liquid dispersion; b) selectively curing a portion of the photocurable composition; and repeating steps a) and b) to form the polymer bond abrasive article. The dispersion contains at least one photocurable component; abrasive particles; a photoinitiator; and at least one of an optical brightener or a light absorber.

公开(公告)号：US20220350127A1

公开(公告)日：2022-11-03

申请号：US17763763

申请日：2020-12-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alexander J. Huffman ,  Brian J. Gates ,  Jeremy K. Larsen ,  David A. Ender ,  Gareth A. Hughes ,  James D. Hansen

IPC: G02B21/33 ,  G02B21/02

Abstract: The present disclosure provides a multiphoton imaging method. The method includes a) immersing a semi-submersible microscope objective in a liquid medium that is at least one of scattering or absorbing; b) directing laser light through the semi-submersible microscope objective and into the liquid medium in an image-wise manner under conditions such that multiphoton absorption by the multiphoton absorber occurs, and at least partial polymerization of the polymerizable compound occurs resulting in an article; and c) removing uncured polymerizable compound to clean the article. The liquid medium includes a polymerizable compound, a secondary component, and a multiphoton absorber. An article is also provided. The article includes a material defining one or more tortuous or arcuate channels, one or more internal architectural voids, one or more undercuts, one or more perforations, or combinations thereof, at least one of which exhibits a surface roughness of 1.0 micrometer Ra or less.

公开(公告)号：US20200299815A1

公开(公告)日：2020-09-24

申请号：US16060290

申请日：2016-11-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gareth A. Hughes ,  Elizaveta Y. Plotnikov ,  David M. Wilson ,  Anatoly Z. Rosenflanz ,  Douglas P. Goetz ,  Jordan A. Campbell ,  Fabian Stolzenburg ,  Colin McCullough ,  Gang Qi ,  Yong K. Wu ,  Jean A. Tangeman ,  Jason D. Anderson ,  Sandeep K. Singh

IPC: C22C32/00 ,  C22C21/00 ,  B22F3/11 ,  B22F7/00 ,  C22C47/14 ,  C22C49/06 ,  C22C49/14

Abstract: A metal matrix composite is provided, including a metal, inorganic particles, and discontinuous fibers. The inorganic particles and the discontinuous fibers are dispersed in the metal. The metal includes aluminum, magnesium, or alloys thereof. The inorganic particles have an envelope density that is at least 30% less than a density of the metal. The metal matrix composite has a lower envelope density than the matrix metal while retaining a substantial amount of the mechanical properties of the metal.

公开(公告)号：US11523888B2

公开(公告)日：2022-12-13

申请号：US16583548

申请日：2019-09-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： James D. Hansen ,  Joseph C. Dingeldein ,  Gareth A. Hughes ,  Gopal B. Haregoppa ,  Bastian P. Kirchner ,  Till Meurer ,  Holger Hauptmann

IPC: A61C13/00

Abstract: An additively manufactured dental crown with a wall having a bottom edge and an occlusal portion joined with the wall opposite the bottom edge. The wall and occlusal portion form an interior surface and an opposing exterior surface. By using additive manufacturing and materials for such, the dental crown can have thin walls with a thickness of less than 300 microns at the thinnest portion of it and can include fine printed features such as identifiers, internal ribs, slots, porous meshes, and retention elements.

公开(公告)号：US20210315664A1

公开(公告)日：2021-10-14

申请号：US17267574

申请日：2019-09-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David M. Wilson ,  Bradley D. Craig ,  Mark B. Agre ,  Kari A. McGee ,  Daimon K Heller ,  William V. Chiu ,  Gareth A. Hughes

IPC: A61C5/20 ,  C08F222/22 ,  C08F222/10 ,  C08J5/00 ,  C08J5/04 ,  A61K6/17 ,  A61K6/836 ,  A61K6/829 ,  A61K6/802

Abstract: The present disclosure provides a composite material. The composite material includes 20 to 40 weight percent (wt. %) of a polymerizable component; 6 to 40 wt. % of ceramic fibers; and 30 to 70 wt. % of nanoclusters. Each of the ceramic fibers has a diameter and a length, the ceramic fibers having an arithmetic mean diameter of 0.3 micrometers to 5 micrometers, and the length of fifty percent of the ceramic fibers (based on a total number of the ceramic fibers) is at least 10 micrometers and the length of ninety percent of the ceramic fibers is no greater than 500 micrometers. The present disclosure also provides a method of making the composite material. The method includes obtaining components and admixing the components to form a composite material. Further, the present disclosure provides a method of using a composite material including placing a composite material near or on a tooth surface, changing the shape of the composite material near or on a tooth surface, and hardening the composite material. In addition, the present disclosure provides dental products and kits. Hardened composite materials can exhibit high strength.

公开(公告)号：US20180098828A1

公开(公告)日：2018-04-12

申请号：US15288008

申请日：2016-10-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： James D. Hansen ,  Joseph C. Dingeldein ,  Gareth A. Hughes ,  Gopal B. Haregoppa ,  Bastian P. Kirchner ,  Till Meurer ,  Holger Hauptmann

IPC: A61C13/00

CPC classification number: A61C13/0019 ,  A61C13/0004 ,  A61C13/0013

Abstract: An additively manufactured dental crown with a wall having a bottom edge and an occlusal portion joined with the wall opposite the bottom edge. The wall and occlusal portion form an interior surface and an opposing exterior surface. By using additive manufacturing and materials for such, the dental crown can have thin walls with a thickness of less than 300 microns at the thinnest portion of it and can include fine printed features such as identifiers, internal ribs, slots, porous meshes, and retention elements.

公开(公告)号：US20210292243A1

公开(公告)日：2021-09-23

申请号：US17260344

申请日：2019-08-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gareth A. Hughes ,  Melissa A. Lackey ,  Brant U. Kolb ,  Jerome G. Magnant ,  Zeba Parkar ,  Kevin M. Casey ,  Nicholas S. Wren

IPC: C04B35/584 ,  C04B35/634 ,  C04B35/624 ,  C04B35/626 ,  C04B35/64 ,  C04B38/06 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/10 ,  B28B1/00

Abstract: The present disclosure provides a method of making a non-oxide ceramic part. The method includes obtaining a photopolymerizable slurry; selectively curing the photopolymerizable slurry to obtain a gelled article; drying the gelled article to form an aerogel article or a xerogel article; heat treating the aerogel article or the xerogel article to form a porous ceramic article; and sintering the porous ceramic article to obtain a sintered ceramic article. The photopolymerizable slurry includes non-oxide ceramic particles; at least one radiation curable monomer; a solvent; a photoinitiator; an inhibitor; and at least one sintering aid. Further, aerogels, xerogels, porous ceramic articles, and non-oxide ceramic articles are provided. In addition, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process, the article based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article.

公开(公告)号：US20200015945A1

公开(公告)日：2020-01-16

申请号：US16583548

申请日：2019-09-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： James D. Hansen ,  Joseph C. Dingeldein ,  Gareth A. Hughes ,  Gopal B. Haregoppa ,  Bastian P. Kirchner ,  Till Meurer ,  Holger Hauptmann

IPC: A61C13/00

Abstract: An additively manufactured dental crown with a wall having a bottom edge and an occlusal portion joined with the wall opposite the bottom edge. The wall and occlusal portion form an interior surface and an opposing exterior surface. By using additive manufacturing and materials for such, the dental crown can have thin walls with a thickness of less than 300 microns at the thinnest portion of it and can include fine printed features such as identifiers, internal ribs, slots, porous meshes, and retention elements.

公开(公告)号：US20220380260A1

公开(公告)日：2022-12-01

申请号：US17626179

申请日：2020-08-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Amy T. Shah ,  James D. Hansen ,  David B. Stegall ,  Alexander J. Huffman ,  Gareth A. Hughes ,  Melissa A. Lackey ,  Kathleen M. Humpal ,  Andreas M. Geldmacher ,  Kristen F. Keller

IPC: C04B35/488 ,  C04B35/624 ,  C04B35/626 ,  C04B35/64 ,  C04B38/00 ,  C04B38/10

Abstract: The present disclosure provides a method of making a ceramic article. The method includes (a) obtaining a photopolymerizable slurry or sol including a plurality of ceramic particles distributed in the photopolymerizable slurry or sol and (b) selectively polymerizing the photopolymerizable slurry or sol using actinic radiation and continuous movement of a build substrate through the photopolymerizable slurry or sol to form a gelled article. The method also includes (c) extracting solvent from the gelled article to form an aerogel article or a xerogel article; (d) heat treating the aerogel article or the xerogel article to form a porous ceramic article; and (e) sintering the porous ceramic article to form a sintered ceramic article. The sintered ceramic article exhibits a particular density. Further, additive manufactured ceramic articles are provided that exhibit a particular density, opacity, or both. Preferably, all cross-sectional portions of an interior of the ceramic article having selected dimensions are free of a frequency analysis signal maxima larger than a background signal.