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1.发明申请公开(公告)号：US20190118244A1
公开(公告)日：2019-04-25
申请号：US16092115
申请日：2017-04-10
发明人： Sandra LEHMANN , Klaus RIEMANN , Nils ZIMMER , Hermann LIEBER , Jürgen HÜBERT
IPC分类号： B22C1/16 , B22C1/22 , B22C1/18 , B22C1/02 , B22C9/08 , C04B35/634 , C04B35/63 , C04B38/00 , C04B38/08
摘要： The present invention relates to the use of closed-pore microspheres of expanded perlite as a filler for producing moldings for the foundry industry, to a composition for producing moldings for the foundry industry, comprising closed-pore microspheres of expanded perlite as a filler, and a binder, the binder being selected from the group consisting of water glass, phenol-formaldehyde resins, two-component systems comprising as reactants a polyisocyanate and a polyol component containing free hydroxyl groups (OH groups), and starch, and also to moldings for the foundry industry and to a process for producing a molding for the foundry industry.
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公开(公告)号：US20200262758A1
公开(公告)日：2020-08-20
申请号：US16617329
申请日：2018-05-30
发明人： Sandra LEHMANN , Klaus RIEMANN , Nils ZIMMER , Hermann LIEBER , Jürgen HÜBERT , Fabio SOLA , Heike MUSHARDT
摘要： What are described are a process for producing an insulating product for the refractory industry or an insulating material as intermediate for production of such a product, and a corresponding insulating material/insulating product. Likewise described are the use of a matrix encapsulation process in the production of an insulating product for the refractory industry and a corresponding insulating product and/or an insulating material as intermediate for production of such a product.
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3.发明公开公开(公告)号：US20240001434A1
公开(公告)日：2024-01-04
申请号：US18335241
申请日：2023-06-15
发明人： Sandra LEHMANN , Klaus RIEMANN , Nils ZIMMER , Hermann LIEBER , Jürgen HÜBERT
IPC分类号： B22C1/16 , B22C1/02 , B22C1/18 , B22C1/22 , B22C9/08 , C04B35/63 , C04B35/634 , C04B38/00 , C04B38/08
CPC分类号： B22C1/167 , B22C1/02 , B22C1/183 , B22C1/2253 , B22C1/2273 , B22C9/088 , C04B35/6303 , C04B35/63404 , C04B35/63476 , C04B38/0061 , C04B38/085 , C04B2235/3427
摘要： The present invention relates to the use of closed-pore microspheres of expanded perlite as a filler for producing moldings for the foundry industry, to a composition for producing moldings for the foundry industry, comprising closed-pore microspheres of expanded perlite as a filler, and a binder, the binder being selected from the group consisting of water glass, phenol-formaldehyde resins, two-component systems comprising as reactants a polyisocyanate and a polyol component containing free hydroxyl groups (OH groups), and starch, and also to moldings for the foundry industry and to a process for producing a molding for the foundry industry.
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公开(公告)号：US20190201970A1
公开(公告)日：2019-07-04
申请号：US16312171
申请日：2017-06-17
发明人： Sandra LEHMANN , Klaus RIEMANN , Nils ZIMMER , Hermann LIEBER , Jürgen HÜBERT
IPC分类号： B22C9/08
摘要： The invention relates to core-shell particles for use as a filler for feeder compositions for producing feeders, comprising (a) a core which possesses one or more cavities and a wall surrounding these cavities, where the core (a) has an average diameter in the range from 0.15 to 0.45 mm, (b) a shell enclosing the core and consisting of or comprising (b1) particles comprising or consisting of a material from the group consisting of calcined kaolin or cordierite, where the particles (b1) have a d10 of at least 0.05 μm and a d90 of at most 45 μm, and also (b2) a binder which binds the particles (b1) to one another and to the core (a).
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公开(公告)号：US20190047041A1
公开(公告)日：2019-02-14
申请号：US16079336
申请日：2017-02-17
发明人： Gérard LADÉGOURDIE , Sandra LEHMANN , Hermann LIEBER , Klaus RIEMANN , Nils ZIMMER , Jürgen HÜBERT , Markus DÖRSCHEL , Bernd DONNER , Ursula NITSCH
摘要： A description is given of a use of a composition comprising an ortho-fused phenolic resole in an amount of up to 60 wt %; as first solvent for the ortho-fused phenolic resole, one or more compounds selected from the group consisting of alkyl silicates, alkyl silicate oligomers and mixtures thereof, the total amount of these compounds being greater than 30 wt %; optionally one or more further solvents for the ortho-fused phenolic resole; optionally one or more further additives; the weight percentages being based on the total amount of the composition, as a binder component for producing feeder elements by the cold box process. A description is also given of the use of a two-component binder system for producing feeder elements by the cold box process, and of a method for producing a feeder element for the foundry industry, and also of a feeder element.
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