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    METHOD FOR THE LAYER-BY-LAYER PRODUCTION OF A CURED THREE-DIMENSIONAL SHAPED BODY, SHAPED BODY OBTAINABLE BY THE METHOD, AND USE THEREOF
    2.
    发明公开
    METHOD FOR THE LAYER-BY-LAYER PRODUCTION OF A CURED THREE-DIMENSIONAL SHAPED BODY, SHAPED BODY OBTAINABLE BY THE METHOD, AND USE THEREOF 审中-公开

    公开(公告)号：US20230191653A1

    公开(公告)日：2023-06-22

    申请号：US17924866

    申请日：2021-06-14

    申请人： ASK CHEMICALS GMBH

    发明人： Dennis BARTELS ,  Dominik POLSAKIEWICZ

    IPC分类号： B28B1/00 ,  B22C1/22 ,  B22C9/10 ,  B22C9/06

    CPC分类号： B28B1/001 ,  B22C1/224 ,  B22C9/06 ,  B22C9/10 ,  B33Y70/10

    摘要： The present invention relates to a method for the layer-by-layer production of a cured three- dimensional shaped body, wherein the method comprises at least: (i) providing a binder comprising at least the following components: a) monomeric furfuryl alcohol and optionally a resin component comprising at least a furan resin, wherein about 60% by weight to 100% by weight of monomeric furfuryl alcohol, based on the sum of monomeric furfuryl alcohol and resin component are present in the binder, and b) a hardener component selected from methanesulfonic acid, benzenesulfonic acid, and mixtures thereof, (ii) providing a layer of a refractory molding material to provide a molding material layer, (iii) selectively applying a component a) or b) of the binder separately from the refractory molding material to at least a part of the molding material layer, (iv) applying the other component of the binder separately from the component mentioned in step (iii), wherein step (iv) can be carried out before or after step (iii), or step (iv) can be combined with step (ii), and (v) optionally repeating steps (ii), (iii), and (iv) once or several times. Shaped bodies obtainable thereby as well as their use are disclosed as well.

    Mould material mixture having improved flowability
    7.
    发明授权
    Mould material mixture having improved flowability 有权

    公开(公告)号：US10232430B2

    公开(公告)日：2019-03-19

    申请号：US14852942

    申请日：2015-09-14

    申请人： ASK Chemicals GmbH

    发明人： Jens Müller ,  Diether Koch ,  Marcus Frohn ,  Jörg Körschgen

    IPC分类号： B22C1/16 ,  B22C1/18 ,  B22C1/26 ,  B22C1/04 ,  B22C1/24 ,  B22C9/12

    摘要： The invention relates to a mold material mixture for producing casting molds for metal processing, a process for producing casting molds, casting molds which can be obtained by the process and their use. The production of the casting molds is carried out using a refractory base molding material and a binder based on water glass. A proportion of a particulate metal oxide selected from the group consisting of silicon dioxide, aluminium oxide, titanium oxide and zinc oxide is added to the binder, with particular preference being given to using synthetic amorphous silicon dioxide. The mold material mixture contains a surface-active material as further significant constituent. The addition of the surface-active material enables the flowability of the mold material mixture to be improved, which makes it possible to produce casting molds having a very complicated geometry.