公开(公告)号：US20220411270A1

公开(公告)日：2022-12-29

申请号：US17732445

申请日：2022-04-28

申请人： Nippon Kornmeyer Carbon Group GmbH

发明人： Torsten KORNMEYER ,  David KLEIN ,  Michael GERADS

IPC分类号： C01B32/205 ,  C01B32/05 ,  C01B32/21

摘要： A method for producing carbon or graphite foam parts with high purity level for high-temperature insulation under vacuum or protective gas, as insulating material or as filter material, includes the following steps: introducing dry, foamable starch (1) into an open-top container (2) having a round or angular cross section, until the base (3) of the container (2) is covered amply and uniformly with starch (1); introducing the container (2) partly filled with starch (1) into an oven (4), and heating the container (2) to a foaming temperature of >180° C. over a prolonged period of several hours to foam the starch (1), until the container (2) has filled completely with carbon foam (6); withdrawing the container (2) from the oven (4) and extracting the carbon foam (6) after sufficient cooling, and optionally portioning the carbon foam (6) into carbon foam parts (6.1).

公开(公告)号：US20240286961A1

公开(公告)日：2024-08-29

申请号：US18572664

申请日：2022-07-05

申请人： Nippon Kornmeyer Carbon Group GmbH

发明人： Torsten KORNMEYER ,  David KLEIN ,  Michael GERADS

IPC分类号： C04B35/524 ,  B29C64/124 ,  B29C64/35 ,  B29K33/20 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10 ,  C04B35/626 ,  C04B35/636 ,  C04B35/64

CPC分类号： C04B35/524 ,  B29C64/124 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10 ,  C04B35/6269 ,  C04B35/6365 ,  C04B35/64 ,  B29C64/35 ,  B29K2033/20 ,  C04B2235/3826 ,  C04B2235/425 ,  C04B2235/48 ,  C04B2235/6026 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/658

摘要： A process for 3D printing articles made of carbon or graphite includes producing a flowable polymeric mixture from a UV permeable and polymerizable polymer or cellulose and a UV crosslinkable resin, admixing the polymeric mixture with sugar and/or cellulose until the mixture has a consistency such that it can be filled into a 3D printer and processed thereby, homogenizing the mixture at room temperature or elevated temperature, filling a 3D printer with the mixture, layerwise printing a shaped article with simultaneous exposure to UV radiation for layerwise crosslinking of the UV crosslinkable resin, cleaning the shaped article, introducing the UV precured shaped article into a furnace and stabilizing the UV precured shaped article in air at a predetermined stabilizing temperature until all volatile constituents have outgassed from the prefabricated shaped article and subsequently high temperature treating the shaped article for carbonization or graphitization in a furnace under protective gas.

公开(公告)号：US20240286962A1

公开(公告)日：2024-08-29

申请号：US18572612

申请日：2022-06-29

申请人： Nippon Kornmeyer Carbon Group GmbH

发明人： Torsten KORNMEYER ,  David KLEIN

IPC分类号： C04B35/532 ,  C04B35/626 ,  C04B35/634 ,  C04B35/636 ,  C04B35/83

CPC分类号： C04B35/532 ,  C04B35/6267 ,  C04B35/63444 ,  C04B35/6365 ,  C04B35/83 ,  C04B2235/48 ,  C04B2235/5212 ,  C04B2235/5248 ,  C04B2235/6562 ,  C04B2235/6567

摘要： A method for producing carbonized or graphitized molding parts is particularly simple to implement and also allows producing complex molding parts without mechanical post-processing. This is achieved by the production of a pourable liquid polymer mixture which is as homogenized as possible, consisting of a carbon granulate, pitch, soot or graphite powder and polyacrylnitrile dissolved in a solvent, filling the liquid polymer mixture into a casting mold and immersing the filled casting mold in water over a predetermined period of time until the polymer mixture is sufficiently cured and dimensionally stable, and subsequent breaking of the casting mold and stabilizing the prefabricated cured molding part by uniform heating up in a furnace in air at a predefined temperature for stabilizing and degassing volatile constituents, and performing a high-temperature treatment for carbonizing or graphitizing the molding part in a furnace under protective gas.

公开(公告)号：US20210363636A1

公开(公告)日：2021-11-25

申请号：US17251442

申请日：2019-06-13

申请人： Nippon Kornmeyer Carbon Group GmbH

发明人： Torsten KORNMEYER

IPC分类号： C23C16/458 ,  H01L21/673

摘要： A plasma boat for receiving wafers with partial damping of the plasma deposition comprises a number of boat plates spaced apart in parallel, which are provided with wafer holders for receiving upright wafers, in order to securely hold the wafers during transport and during the depositing process in a coating chamber, and wherein the boat plates are mechanically connected to one another by electrically insulating spacers. This provides a plasma boat, with regulated plasma deposition, which ensures a deposition on wafers that is uniform over the surface area thereof and has a constant layer thickness. This is achieved by a damping element (12) being respectively arranged between the wafer holders (16) located parallel to one another, between adjacent boat plates (15), and electrically insulated with respect to the latter on spacer elements (2).