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1. 发明申请

WO2020079618A1 SPRAYABLE POWDER OF FLUOROPOLYMER PARTICLES 审中-公开
公开(公告)号：WO2020079618A1
公开(公告)日：2020-04-23
申请号：PCT/IB2019/058833
申请日：2019-10-16
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： GELDMACHER, Andreas M. , ZENTIS, Fee , MAERZ, Michael , HINTZER, Klaus , KASPAR, Harald , EICHLER, Jens , GOTTSCHALK-GAUDIG, Gabriele H.
IPC分类号： C08J3/12 , B29C64/153
摘要： The present disclosure relates to a fluoropolymer powder for additive manufacturing of fluoropolymers having an average particle size (d 50 ) in a range from 20 to 100 micrometers, preferably 30 to 70 micrometers, more preferably from 30 to 65 micrometers, most preferably from 30 to 60 micrometers and an average particle size (d 90 ) in a range from 60 to 120 micrometers, and a bulk density of at least 800 g/l and no greater than 2000 g/l when measured according to DIN EN ISO 60:2000-1. Also provided are uses of the powder, processes of making the powders, articles produced by using the powder and processes for additive manufacturing using the powder.

2. 发明申请

WO2017004008A1 MEASURING DEVICE, SYSTEM, METHOD, AND PROGRAM 审中-公开
标题翻译：测量装置，系统，方法和程序
公开(公告)号：WO2017004008A1
公开(公告)日：2017-01-05
申请号：PCT/US2016/039756
申请日：2016-06-28
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： KARASAWA, Fumio , GELDMACHER, Andreas M. , SOMASUNDARAM, Guruprasad
IPC分类号： G01B11/00 , G01B11/02 , G01B11/14 , G01N21/55
CPC分类号： G01N21/55 , G01N21/274 , G01N2021/551 , G01N2201/0221
摘要： Problem: To provide a device, system, method, and program able to easily measure retroreflective coefficients using a commercially available mobile terminal having an imaging unit. Resolution Means: A device is provided that has an imaging unit for capturing an image of a target object, an observation angle acquiring unit for acquiring an observation angle determined by a positional relationship between the imaging unit, a light source for emitting light for capture and the target object, an entrance angle acquiring unit for acquiring an entrance angle of light emitted for capture incident on the target object, a converting unit for converting image data of an image to a luminance value of the target object using capture information of the image, and a calculating unit for calculating a value of a retroreflective coefficient of the target object based on an illuminance value and the luminance value of the target object.
摘要翻译：问题：提供一种能够使用具有成像单元的市售移动终端容易地测量回归系数的装置，系统，方法和程序。分辨率装置：提供一种装置，具有用于拍摄目标物体的图像的成像单元，观察角度获取单元，用于获取由成像单元，用于发射用于捕获的光的光源和用于捕获的光的位置关系确定的观察角度;以及目标对象，用于获取入射到目标对象上的捕获发射的光的入射角的入射角获取单元，使用图像的捕获信息将图像的图像数据转换为目标对象的亮度值的转换单元，以及计算单元，用于基于目标对象的照度值和亮度值计算目标对象的回射系数的值。

3. 发明申请

WO2021024162A1 CONTINUOUS ADDITIVE MANUFACTURING METHOD FOR MAKING CERAMIC ARTICLES, AND CERAMIC ARTICLES 审中-公开
公开(公告)号：WO2021024162A1
公开(公告)日：2021-02-11
申请号：PCT/IB2020/057327
申请日：2020-08-03
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： SHAH, Amy T. , HANSEN, James D. , STEGALL, David B. , HUFFMAN, Alexander J. , HUGHES, Gareth A. , LACKEY, Melissa A. , HUMPAL, Kathleen M. , GELDMACHER, Andreas M. , KELLER, Kristen F.
IPC分类号： C04B35/00 , B28B1/00 , B29C64/10 , B29C64/106 , B29C64/124 , B29C64/129 , C04B35/053 , C04B35/111 , C04B35/14 , C04B35/195 , C04B35/44 , C04B35/447 , C04B35/486 , C04B35/50 , C04B35/505 , C04B35/56 , C04B35/563 , C04B35/565 , C04B35/58 , C04B35/581 , C04B35/583 , C04B35/584
摘要： 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.

4. 发明申请

WO2018160297A1 METAL BOND ABRASIVE ARTICLES AND METHODS OF MAKING METAL BOND ABRASIVE ARTICLES 审中-公开
公开(公告)号：WO2018160297A1
公开(公告)日：2018-09-07
申请号：PCT/US2018/015134
申请日：2018-01-25
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： RIFAUT, Jean-Luc , VEERARAGHAVAN, Badri , REMHOF, Tilo , GOERS, Brian D. , GELDMACHER, Andreas M. , SMITHSON, Robert L. W. , MARKOWICZ, Przemyslaw P. , FINK, Johannes
IPC分类号： B24D3/06 , B29C64/153 , C09K3/14 , B24D18/00
摘要： Metal bond abrasive articles and methods of making metal bond abrasive articles via a focused beam are disclosed. In an aspect, a metal bond abrasive article includes a metallic binder material having abrasive particles retained therein, where the abrasive particles have at least one coating disposed thereon. The coating includes a metal, a metal oxide, a metal carbide, a metal nitride, a metalloid, or combinations thereof, and the at least one coating has an average thickness of 0.5 micrometers or greater. The metal bond abrasive article includes a number of layers directly bonded to each other. Metal bond abrasive articles prepared by the method can include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying a metal bond abrasive article; and generating, with the manufacturing device by an additive manufacturing process, the metal bond abrasive article based on the digital object. A system is also provided, including a display that displays a 3D model of a metal bond abrasive 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 the metal bond abrasive article.

5. 发明申请

WO2021214664A1 PARTICLES INCLUDING POLYTETRAFLUOROETHYLENE AND PROCESS FOR MAKING A THREE-DIMENSIONAL ARTICLE 审中-公开
公开(公告)号：WO2021214664A1
公开(公告)日：2021-10-28
申请号：PCT/IB2021/053263
申请日：2021-04-20
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： ZENTIS, Fee , OSTROWSKI, Karoline Anna , KASPAR, Harald , HINTZER, Klaus , GELDMACHER, Andreas M.
IPC分类号： C08F214/26 , B29C64/153 , B33Y10/00 , B33Y70/00
摘要： Particles of a polytetrafluoroethylene for use in additive manufacturing. The polytetrafluoroethylene includes first polymerized units of tetrafluoroethylene and second polymerized units of at least one of a fluorinated vinyl ether or a fluorinated allyl ether. The second polymerized units are present in an amount not more than one percent by weight based on the total weight of the first polymerized units and the second polymerized units. The particles have a melt flow index of at least 0.5 gram/10 minutes (372 ˚C/5 kg) and a melting point of at least 316 ˚C, measured after the first melting and crystallization of the particles. The polytetrafluoroethylene may have a core and a shell, in which the shell has a greater amount of the second polymerized units than the core. A process for making a three-dimensional article using the particles, a three-dimensional article made by the process, and use of the particles for selective laser sintering are also disclosed.

6. 发明申请

WO2021038438A1 DENTAL BUR, MANUFACTURING METHOD THEREFOR AND DATA STREAM 审中-公开
公开(公告)号：WO2021038438A1
公开(公告)日：2021-03-04
申请号：PCT/IB2020/057935
申请日：2020-08-25
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： SCHUMACHER, Knut , GELDMACHER, Andreas M. , REMHOF, Tilo , GROTENBURG, Karl
IPC分类号： A61C3/06 , A61C3/02 , B24D5/14 , B24D7/14 , B24D3/06 , B24D18/00 , B22F3/105
摘要： Metal bond abrasive dental bur, comprising a tool head, formed by a plurality of solid layers of a metallic binder material having abrasive particles retained therein, the solid layers being directly bonded to each other. The tool head comprises a rotationally symmetric abrading surface portion, a radially outer portion comprising the abrading surface portion, and a radially inner portion. The density of abrasive particles is higher in the radially outer portion than in the radially inner portion. Method of making a metal bond abrasive dental bur, comprising the steps of a) carrying out a subprocess comprising the steps, in this sequence, of: i) depositing a layer of loose powder particles comprising metallic binder particles and abrasive particles; ii) treating a first selected area of the layer of loose powder particles with a focused beam to deposit a first amount of energy per unit area to bond powder particles together to form a solid layer, and treating a second selected area of the layer of loose powder particles with a focused beam to deposit a second amount of energy per unit area to bond powder particles together; b) carrying out step a) a plurality of times to form the metal bond abrasive dental bur from solid layers of the bonded powder particles. The first amount of energy is low enough to not vaporize abrasive particles in the first selected area, and the second amount of energy is high enough to vaporize at least a minimum percentage of the abrasive particles in the second selected area.

7. 发明申请

WO2018151759A1 OPTICAL ARTICLES AND SYSTEMS INTERACTING WITH THE SAME 审中-公开
公开(公告)号：WO2018151759A1
公开(公告)日：2018-08-23
申请号：PCT/US2017/053632
申请日：2017-09-27
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： MCCOY, Michael A. , CASNER, Glenn E. , GOLD, Anne C. , GUTTMANN, Silvia Geciova-Borovova , SHAKLEE, Charles A. , SHANNON, Robert W. , SINGH, Gautam , SOMASUNDARAM, Guruprasad , TILSTRA, Andrew H. , WHEATLEY, John A. , YLITALO, Caroline M. , SANGARI, Arash , CUNLIFFE, Alexandra R. , GANDRUD, Jonathan D. , CHEN-HO, Kui , POTTS, Travis L. , GIESE, Maja , GELDMACHER, Andreas M. , HANSEN, Katja , LIERSE, Markus G.W. , SHARMA, Neeraj
IPC分类号： G02B5/124 , G02B5/30 , G06K19/06
摘要： The present disclosure includes in one instance an optical article comprising a data rich plurality of retroreflective elements that are configured in a spatially defined arrangement, where the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties, and where data rich means information that is readily machine interpretable. The present disclosure also includes a system comprising the previously mentioned optical article, an optical system, and an inference engine for interpreting and classifying the plurality of retroreflective elements wherein the optical system feeds data to the inference engine.

8. 发明申请

WO2016164238A1 A DENTAL LIGHT IRRADIATION DEVICE 审中-公开
标题翻译： DENTAL LIGHT IRRADIATION DEVICE
公开(公告)号：WO2016164238A1
公开(公告)日：2016-10-13
申请号：PCT/US2016/025132
申请日：2016-03-31
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： GELDMACHER, Andreas M. , GERLACH, Korbinian , FINK, Johannes , WELKER, Stefan K.
IPC分类号： A61C13/15 , A61B5/06
CPC分类号： A61B5/0088 , A61B5/065 , A61B5/067 , A61B5/7455 , A61B2017/00119 , A61B2034/2048 , A61C19/004
摘要： A dental light irradiation device has sensing means for sensing a change of a position of the device, and an indicator for physically indicating the position change. The invention helps controlling the positioning of the device during use.
摘要翻译：牙科照射装置具有用于感测装置的位置变化的感测装置和用于物理地指示位置变化的指示器。本发明有助于在使用期间控制装置的定位。

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