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    Soft-magnetic powder comprising coated particles
    71.
    发明授权
    Soft-magnetic powder comprising coated particles 有权

    公开(公告)号：US12180568B2

    公开(公告)日：2024-12-31

    申请号：US17791572

    申请日：2021-01-07

    Applicant: BASF SE

    Inventor： Robert Prunchak ,  Jose A. Jimenez ,  Rene Koenig ,  Rastko Joksimovic

    IPC: B22F1/16 ,  B22F1/00 ,  B22F1/05 ,  C22C33/02 ,  C23C16/40 ,  C23C16/455 ,  H01F1/20 ,  B22F1/06

    Abstract: The invention is related to a soft-magnetic powder comprising coated particles, the coated particles comprising a core and a shell, the core having an average particle size D50 in a range from 0.1 μm to 100 μm and comprising iron, wherein the shell has a thickness of not more than 20 nm and comprises at least two solid oxides and wherein the shell comprises at least three layers and the shell comprises more than one layers of a first solid oxide and at least one layer of a second solid oxide, wherein the more than one layers of the first solid oxide and the at least one layer of the second solid oxide are arranged in an alternating manner. The invention is further related to a process for the production of the soft-magnetic powder, a use of the soft-magnetic powder and an electronic component comprising the soft-magnetic powder.

    Continuous production of a PPG-based TPU
    75.
    发明授权
    Continuous production of a PPG-based TPU 有权

    公开(公告)号：US12168712B2

    公开(公告)日：2024-12-17

    申请号：US17309421

    申请日：2019-11-29

    Applicant: BASF SE

    Inventor： Frank Schaefer ,  Michael Freese ,  Elmar Poeselt ,  Etsuhiro Yamamoto ,  Yasuyuki Suzuki ,  Dai Watanabe ,  Patrick Drawe

    IPC: C08G18/10 ,  C08G18/32 ,  C08G18/48

    Abstract: A thermoplastic polyurethane having a glass transition temperature of the soft phase of not more than −25° C. measured using DMA and a heating rate of 2K/min at 1 Hz under torsion based on DIN EN ISO 6721: 2016; maximum G″ can be obtained by a process at least including the reaction of a polyol composition including a polypropylene glycol, wherein the proportion of the secondary terminal OH groups based on the total number of terminal OH groups of the polypropylene glycol is in the range of more than 90%, with a polyisocyanate to obtain a polyol composition including a prepolymer and the reaction of the polyol composition including the prepolymer with a polyisocyanate composition including at least one polyisocyanate and at least one chain extender having a molecular weight

    Water-emulsifiable isocyanates with improved properties
    76.
    发明授权
    Water-emulsifiable isocyanates with improved properties 有权

    公开(公告)号：US12168711B2

    公开(公告)日：2024-12-17

    申请号：US17621709

    申请日：2020-06-18

    Applicant: BASF SE

    Inventor： Frederic Lucas ,  Harald Schaefer

    IPC: C08G18/08 ,  C08G18/10 ,  C08G18/22 ,  C08G18/28 ,  C08G18/48 ,  C08G18/70 ,  C08G18/73 ,  C08G18/76 ,  C08G18/78 ,  C08G18/79 ,  C09D175/08 ,  C09J175/08

    Abstract: A process for producing a water-emulsifiable polyisocyanate formulation, in which, in a first process step, (A) a dispersion-active reaction product (E) is prepared from at least one diisocyanate selected from the group of hexamethylene 1,6-diisocyanate, pentamethylene 1,5-diisocyanate, 4,4′-di(isocyanatocyclohexyl)methane, 1-isocyanato-3,3,5-trimethyl-5-(isocyanatomethyl)cyclohexane, tolylene 2,4- and 2,6-diisocyanate, tetramethylxylylene diisocyanate, p-xylylene diisocyanate, 2,4′- and 4,4′-diisocyanatodiphenylmethane, with at least one mono- or polyhydric polyalkylene ether alcohol having 2 to 4 carbon atoms in the alkylene groups that comprises a polymer chain having at least 8 ethylene oxide units, and the resultant reaction product (E), in a second process step, (B) is mixed with at least one (cyclo)aliphatic polyisocyanate having an average NCO functionality of 2.2 to 5.0, preferably of 2.5 to 4.0, wherein step (B) is performed in the presence of an allophanatization catalyst and the conditions are chosen such that (E) and the polyisocyanate form allophanate groups, characterized in that the allophanatization catalyst is at least one salt consisting of a metal cation and at least one dithiophosphate anion.

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