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    PROCESS FOR PREPARING POLYOXYALKYLENE POLYESTER POLYOLS
    1.
    发明申请
    PROCESS FOR PREPARING POLYOXYALKYLENE POLYESTER POLYOLS 有权

    公开(公告)号：US20250019486A1

    公开(公告)日：2025-01-16

    申请号：US18695992

    申请日：2022-09-30

    Applicant: Covestro Deutschland AG

    Inventor： Klaus Lorenz ,  Frank Kleinig

    IPC: C08G18/48 ,  C08G18/42 ,  C08G18/46

    Abstract: The invention relates to a process for preparing polyoxyalkylene polyester polyols with calculated OH numbers of 320 mg (KOH)/g to 530 mg (KOH)/g by reacting a starter compound, which contains alcoholic hydroxy groups and/or amine protons, and a fatty acid ester containing an alkylene oxide. The invention further relates to polyoxyalkylene polyester polyols resulting from the method and to a preparation method for polyurethanes by reaction of the polyoxyalkylene polyester polyols according to the invention with polyisocyanates.

    Lagrangian Method for Efficient Computation of First-Order Derivative Properties of Observables of Quantum States Representing Fermions in Quantum Computers
    2.
    发明公开
    Lagrangian Method for Efficient Computation of First-Order Derivative Properties of Observables of Quantum States Representing Fermions in Quantum Computers 审中-公开

    公开(公告)号：US20240346349A1

    公开(公告)日：2024-10-17

    申请号：US18276638

    申请日：2022-02-15

    Applicant: QC WARE CORP. ,  COVESTRO DEUTSCHLAND AG

    Inventor： Robert Michael PARRISH ,  Christian Gogolin

    IPC: G06N10/20 ,  G06F17/11 ,  G06N10/60

    CPC classification number: G06N10/20 ,  G06F17/11 ,  G06N10/60

    Abstract: The present disclosure provides methods for computing first-order derivative properties of observables of fermionic systems, such as the derivatives of electronic ground and exited states of molecules and materials with respect to the positions of the nuclei, with the help of a quantum computer. The method has the advantageous property that first-order derivative properties with respect to an arbitrary number of parameters of the fermionic system can be computed with a quantum computational effort that is independent of the number of such parameters. First-order derivatives of additional observables, such as wave function overlaps, multipole moments, and electronic density characteristics with respect to additional derivative perturbations, such as nuclear charges and electromagnetic fields, can be evaluated within the same framework, with additional applications such as computation of non-adiabatic dynamics, (hyper)polarizabilities, electrical conductivities, and various spectroscopies of the molecular or material system in question.

    Liquid container
    3.
    外观设计
    Liquid container 有权

    公开(公告)号：USD1047083S1

    公开(公告)日：2024-10-15

    申请号：US29902102

    申请日：2023-09-08

    Applicant: Covestro Deutschland AG

    Designer： Marc Schreiber ,  Wilfred Teunissen

    Abstract: FIG. 1 is a front perspective view of a liquid container;
    FIG. 2 is a front elevation view of the liquid container;
    FIG. 3 is a rear elevation view of the liquid container;
    FIG. 4 is a top elevation view of the liquid container;
    FIG. 5 is a bottom elevation view of the liquid container;
    FIG. 6 is a side elevation view of the liquid container; and,
    FIG. 7 is an opposite side view of the liquid container.
    The broken line portions of the disclosure are for the purpose of illustrating portions of the liquid container that form no part of the claimed design.

    OPTIMISED LIQUID OUTFLOW FROM MEMBRANE ELECTROLYSERS
    4.
    发明公开
    OPTIMISED LIQUID OUTFLOW FROM MEMBRANE ELECTROLYSERS 审中-公开

    公开(公告)号：US20240328002A1

    公开(公告)日：2024-10-03

    申请号：US18579653

    申请日：2022-07-17

    Applicant: Covestro Deutschland AG

    Inventor： Thorsten Leidig ,  Marcel Obermeier ,  Torsten Kern

    IPC: C25B9/23 ,  C25B1/46 ,  C25B9/70 ,  C25B11/032 ,  C25B15/08

    CPC classification number: C25B9/23 ,  C25B1/46 ,  C25B9/70 ,  C25B11/032 ,  C25B15/08

    Abstract: A method comprising operating an electrolysis apparatus comprising a plurality of electrolyzers is provided. Each electrolyzer on the anode side has at least one liquid drain and at least one gas outlet, and separately therefrom on the cathode side has at least one liquid drain and at least one gas outlet. The anode spaces of these electrolyzers are connected to one another and separately therefrom the cathode spaces of these electrolyzers are connected to one another, in each case at least via a liquid feed, a gas discharge and a liquid discharge. The liquid drains from the anode spaces and/or the cathode spaces of the electrolyzers are effected, per electrolyzer, via a pipeline siphon into the pipeline system of the liquid discharge. An electrolysis apparatus and a method comprising decoupling an operating pressure on a liquid drain side of an electrolyzer are also provided.

    COATED FILM
    6.
    发明公开
    COATED FILM 审中-公开

    公开(公告)号：US20240327586A1

    公开(公告)日：2024-10-03

    申请号：US18699356

    申请日：2022-10-25

    Applicant: Covestro Deutschland AG

    Inventor： Huimin Ye ,  Tingwen Wang ,  Meng Feng ,  Xianyun Zhang ,  Linxia Huang

    IPC: C08J7/04 ,  C08J5/12 ,  C08K3/36 ,  C09D7/40 ,  C09D7/61 ,  C09D175/04 ,  C09D175/08

    CPC classification number: C08J7/0427 ,  C08J5/121 ,  C09D7/61 ,  C09D7/67 ,  C09D175/04 ,  C09D175/08 ,  C08J2375/06 ,  C08J2475/08 ,  C08K3/36 ,  C08K2201/011

    Abstract: The invention relates to a coated film and a method for preparing the same, use of the coated film for manufacturing shaped bodies, a method for manufacturing shaped bodies from the coated film, and a shaped body made therefrom. The coated film comprises a plastic film with Shore hardness of not less than 80A and a coating formed by applying an aqueous coating composition to the plastic film, wherein the plastic film is a film of a thermoplastic polyurethane based on polyester polyol, and the aqueous coating composition comprises: a. 45% by weight to 85% by weight of a dispersion of an anionic polyurethane based on polycarbonate polyol; b. 0% by weight to 40% by weight of a dispersion of an anionic polyurethane based on polyether polyol; c. 2% by weight to 18% by weight of a dispersion of anionic silica; d. 0.5% by weight to 10% by weight of a blocked isocyanate; and e. 0.1% by weight to 10% by weight of an additive; the amounts above being relative to the total weight of the composition.

    COMPOSITION AND METHOD FOR PRODUCING A TRANSPARENT THERMOPLASTIC POLYCARBONATE/POLYMETHYL METHACRYLATE MOULDING COMPOUND
    9.
    发明公开
    COMPOSITION AND METHOD FOR PRODUCING A TRANSPARENT THERMOPLASTIC POLYCARBONATE/POLYMETHYL METHACRYLATE MOULDING COMPOUND 审中-公开

    公开(公告)号：US20240270961A1

    公开(公告)日：2024-08-15

    申请号：US18575903

    申请日：2022-06-27

    Applicant: Covestro Deutschland AG

    Inventor： Andreas Seidel ,  Tobias Bubmann ,  Jan Heijl ,  Marina Reithmeier ,  Volker Altstädt

    IPC: C08L69/00 ,  B29C45/00 ,  B29K69/00 ,  C08G81/02

    CPC classification number: C08L69/005 ,  B29C45/0001 ,  C08G81/027 ,  B29K2069/00 ,  B29K2995/0026 ,  C08L2201/10 ,  C08L2205/02

    Abstract: The present invention relates to a composition for producing a thermoplastic moulding compound containing: A) an aromatic polycarbonate and/or aromatic polyester carbonate containing carboxy groups, wherein the polycarbonate has an acid value ranging from 0.5 to 10 mg of potassium hydroxide/g, determined in dichloromethane/ethanol as the solvent by means of potentiometric titration in accordance with DIN EN ISO 2114, method A in version 2002-06 with ethanolic potassium hydroxide solution at ambient temperature, and a weight-average molecular mass (Mw), determined by gel permeation chromatography at ambient temperature in dichloromethane as the solvent using a BPA polycarbonate standard, ranging from 15,000 to 40,000 g/mol, and B) a polymethyl methacrylate copolymer containing structural units derived from glycidyl methacrylate, wherein the copolymer has an epoxide equivalent weight, determined in dichloromethane as the solvent at ambient temperature in accordance with DIN EN 1877-1 in version 2000-12, of 0.05 to 3 wt % and a weight-average molecular mass (Mw), determined by gel permeation chromatography at ambient temperature in tetrahydrofuran as the solvent using a polystyrene standard, of 20,000 to 200,000 g/mol, wherein the weight ratio of component A and component B ranges from 95:5 to 35:65, and a method for producing a moulding compound from the composition, a moulding compound obtained according to the method, the use of the moulding compound to produce moulds, the moulds per se and a method for producing the moulds.

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