Patents Assigned to Evonik Operations GmbH
  • ROOM TEMPERATURE IONIC LIQUID CURING AGENT
    Publication number: 20220356298
    Abstract: Epoxy curing agents are disclosed having an epoxy curing agent comprising at least one room temperature ionic liquid salt, the room temperature ionic liquid salt being a reaction product of (a) at least one polyalkylene polyamine compound represented by formula (I): wherein x, y, and z are integers of 2 and 3, m and n and integers of 1-3; and (b) an organic acid having pKa (the negative of the logarithm of the acid dissociation constant) less than 6. The liquid salt is a stable liquid at a temperature greater than 15° C. Curable epoxy-based compositions including the curing agent and articles formed by the curable epoxy-based compositions are also disclosed.
    Type: Application
    Filed: July 18, 2022
    Publication date: November 10, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Jian Li, Lei Wang
  • PROCESS FOR DISTILLATIVE PURIFICATION OF UNSATURATED CARBOXYLIC ANHYDRIDES
    Publication number: 20220356142
    Abstract: The invention relates to a process for distillative removal of a unsaturated carboxylic anhydride of the general formula (I) R—C(O)—O—C—(O)—R in which R is an unsaturated organic radical having 2 to 12 carbon atoms, wherein said unsaturated carboxylic anhydride is discharged in gaseous form from a sidestream take-off and is condensed in an atomized liquid circulating stream of said unsaturated carboxylic anhydride.
    Type: Application
    Filed: June 24, 2020
    Publication date: November 10, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Steffen KRILL, Dirk BRÖLL
  • Compositions comprising sorbitan carboxylic esters and glycerol carboxylic esters
    Patent number: 11491093
    Abstract: The invention relates to compositions comprising certain sorbitan carboxylic esters and glycerol carboxylic esters in particular amounts.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: November 8, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Kathrin Daniela Brandt, Dominik Schuch, Beata Bednorz
  • MATERIALS COMPRISING CARBON-EMBEDDED NICKEL NANOPARTICLES, PROCESSES FOR THEIR MANUFACTURE, AND USE AS HETEROGENEOUS CATALYSTS
    Publication number: 20220347658
    Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with nickel nanoparticles dispersed therein, wherein dp, the average diameter of nickel nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between nickel nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/?>D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.
    Type: Application
    Filed: September 3, 2020
    Publication date: November 3, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Arne REINSDORF, Dorit WOLF, Renat KADYROV, Sarah CHAMSKI
  • High-temperature foams with reduced resin absorption for producing sandwich materials
    Patent number: 11485832
    Abstract: High-temperature foams are produced and used in the construction of aeroplanes, ships and rail and other vehicles. In particular, the foams are further processed into sandwich materials by joining with two outer layers. To this end, a novel process is used for producing high-temperature foams (HT foams) which are particularly suitable for producing such sandwich components for lightweight construction. This process achieves an improvement in the processability of the HT foams produced and a weight reduction of the sandwich materials. The HT foams are furthermore rigid particle foams which are markedly more economic to produce than rigid block foams. In particular, a reduction is brought about in resin absorption in fibre composite processes through a process-related optimization of the surface constitution.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: November 1, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Christian Traßl, Thomas Richter
  • Microemulsion comprising quaternary ammonium compound, especially for production of fabric softener formulations
    Patent number: 11485938
    Abstract: The invention provides for the use of specific microemulsions comprising quaternary ammonium compounds for production of clear fabric softener formulations having improved performance properties, and also the corresponding formulations and a process for production thereof.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: November 1, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Verena Dahl, Jochen Kleinen, Miyako Hisamoto, Jens Hildebrand, Alexandra Trambitas, Erin King, Kristin Klostermann, Iwona Winter, Simone Bräscher
  • MIXTURE OF BISPHOSPHITES HAVING AN OPEN AND A CLOSED OUTER UNIT AND THE USE THEREOF AS A CATALYST MIXTURE IN HYDRFORMYLATION
    Publication number: 20220340511
    Abstract: Mixture of bisphosphites having an open and a closed outer unit and the use thereof as a catalyst mixture in hydroformylation.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 27, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Anna Chiara SALE, Robert FRANKE, Alexander BRÄCHER, Dirk FRIDAG, Johannes KNOSSALLA, Peter KUCMIERCZYK, Ana MARKOVIC
  • Process for producing polymethyl methacrylate rigid foams as core materials in rotor blades of wind power plants and in boatbuilding
    Publication number: 20220339829
    Abstract: PMMA-based rigid foams can be used as the core material of sandwich components in rotor blades of wind power plants and in boatbuilding.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 27, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Thomas RICHTER, Christoph Seipel, Vincent Ma Junyong, Florian Becker, Lisa Langel
  • DIPHOSPHITES HAVING AN OPEN AND A CLOSED 2,4-METHYLATED OUTER UNIT
    Publication number: 20220340606
    Abstract: Diphosphites having an open and a closed 2,4-methylated outer unit and use thereof in hydroformylation.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 27, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Robert FRANKE, Anna Chiara Sale, Alexander Brãcher, Dirk Fridag, Ana Markovic, Peter Kucmierczyk, Johannes Knossalla
  • PROCESS FOR PREPARING BIPHENYL-2,2'-DIOLS
    Publication number: 20220332669
    Abstract: Process for preparing biphenyl-2,2?-diols.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 20, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Dirk FRIDAG, Anna Chiara SALE, Robert FRANKE, Alexander BR.A.CHER, Johannes KNOSSALLA
  • DIPHOSPHITES WITH AN OPEN, 3-METHYLATED OUTER UNIT
    Publication number: 20220332736
    Abstract: Diphosphites having an open, 3-methylated outer unit and use thereof in hydroformylation.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 20, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Anna Chiara SALE, Robert FRANKE, Alexander BRÃCHER, Dirk FRIDAG, Ana MARKOVIC, Peter kUCMIERCZYK, Johannes KNOSSALLA
  • PREPARATION OF NANOSTRUCTURED MIXED LITHIUM ZIRCONIUM OXIDES BY MEANS OF SPRAY PYROLYSIS
    Publication number: 20220336841
    Abstract: A process may produce mixed oxides including lithium, zirconium, and optionally at least one other than Li and Zr metal, by flame spray pyrolysis. Mixed oxides are obtainable by such a process. Such mixed oxides may be used in lithium ion batteries.
    Type: Application
    Filed: September 10, 2020
    Publication date: October 20, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Durdu SCHÄFER, Armin WIEGAND, Harald ALFF, Ryo TAKATA, Franz SCHMIDT
  • PELLET AND MULTI-UNIT PELLET SYSTEM (MUPS)
    Publication number: 20220331254
    Abstract: A pellet contains a core, which contains one or more biologically active ingredients, and a coating layer on the core. The coating layer contains a mixture of a first polymer and a second polymer. The first polymer is a core-shell polymer, containing 50 to 90% by weight of a core, containing polymerized units of 60 to 80% by weight of ethyl acrylate and 20 to 40% by weight of methyl methacrylate; and 10 to 50% by weight of a shell, containing polymerized units of 40 to 60% by weight of ethyl acrylate and 40 to 60% by weight of methacrylic acid. The second polymer contains polymerized units of 40 to 60% by weight of methacrylic acid and 60 to 40% by weight of ethyl acrylate or methyl methacrylate. A Multi-Unit Pellet System (MUPS) contains a multitude of the pellets.
    Type: Application
    Filed: July 1, 2022
    Publication date: October 20, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Ashish Guha, Shraddha Joshi, Aditi Poddar, Suresh Doke
  • USE OF POLYMERIC-INORGANIC NANOPARTICLE COMPOSITIONS AS HEAT TRANSFER FLUIDS IN BATTERY OR OTHER ELECTRICAL EQUIPMENT SYSTEMS
    Publication number: 20220332998
    Abstract: The invention relates to the use of a polymeric-inorganic nanoparticle composition as a heat transfer fluid in battery or other electrical equipment systems. The electrical equipment can be in particular electric batteries, electric motors, electric vehicle transmissions, electric transformers, electric capacitors, fluid-filled transmission lines, fluid-filled power cables, computers and power electronics such as electric power converters.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 20, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Ulrich Fischer, Daniel Neß, Stephan Wieber, Michael Gerhard Hagemann, Günter Schmitt, Jennifer Schrantz, Katharina Dauth, Can Metehan Turhan
  • Highly stable and alkaline cleaning solutions and soluble surfactant
    Patent number: 11473034
    Abstract: The present invention relates to new alkaline, preferably highly alkaline, cleaning solutions comprising surfactants with improved stability and cleaning performance under such conditions. It further relates to novel surfactants.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: October 18, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Eric Theiner, Buford Brian Smith, Khalil Yacoub, Larry Meyers
  • Process for purifying acetoxysiloxanes
    Patent number: 11472822
    Abstract: Processes are described for purifying acidic, preferably superacidic, in particular trifluoromethanesulfonic acid-acidified, end-equilibrated acetoxysiloxanes, wherein the acidic, preferably superacidic, in particular trifluoromethanesulfonic acid-acidified, acetic anhydride-containing and optionally acetic acid-containing equilibrated, preferably end-equilibrated acetoxysiloxane, which is optionally dissolved in an inert solvent, is contacted with a base, the precipitate is filtered off thereafter and then the filtrate obtained is optionally purified by distillation.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: October 18, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Wilfried Knott, Dagmar Windbiel, Horst Dudzik, Frauke Henning, Jan Caßens
  • Mono-alkylated diamines for epoxy formulations: novel curing agents for epoxy systems
    Patent number: 11472913
    Abstract: The present invention relates to an epoxy resin system containing an epoxy resin and a mono-alkylated diamine. The epoxy resin system can further contain a second amine. The present invention also relates to a method for producing an epoxy resin system comprising combining an epoxy resin with a mono-alkylated diamine. The mono-alkylated diamines of this invention enhance desirable processing and cured properties of epoxy resin compositions without the negative impact on mechanical properties in the cured product normally seen with cycloaliphatic amine-based curing agents.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: October 18, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Gamini Ananda Vedage, Pritesh G. Patel, Jamie Schneck, Sebastian de Nardo, Steffen Kanzler
  • COMPOSITIONS COMPRISING DISSUBSTITUTE TEREPHTHALATES AND ALSO LIGHT PROECTION FILTER SUBSTANCES, DEODORANT AND/OR ANTIPERSPIRANT ACTIVE INGREDIENTS
    Publication number: 20220323325
    Abstract: Compositions containing disubstituted terephthalates are useful. The compositions may also contain light protection filter substances, deodorant and/or antiperspirant active ingredients.
    Type: Application
    Filed: August 27, 2020
    Publication date: October 13, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Matthias Mentel, Juergen Meyer, Achim Friedrich
  • Water-based curable composition for production of coatings comprising phosphors
    Publication number: 20220325176
    Abstract: A water-based curable composition, for production of coatings having an antimicrobial property, contains at least one film-forming polymer, optionally at least one additive and/or at least one curing agent, and at least one up-conversion phosphor of the general formula (I): A1-x-y-zB*yB2SiO4:Ln1x,Ln2z. In the general formula (I), x=0.0001-0.0500; z=0.0000 or z=0.0001 to 0.3000 with the proviso that: y=x+z; A is selected from Mg, Ca, Sr and Ba; B is selected from Li, Na, K. Rb and Cs; B* is selected from Li, Na and K; and preferably B and B* are not the same. Additionally, Ln1 is selected from praseodymium (Pr), erbium (Er), and neodymium (Nd); and Ln2 is gadolinium (Gd). The phosphor, as a result of an aftertreatment, includes at least one material which has a band gap of greater than 6.0 electronvolts (eV) and is hydrolysis-stable.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 13, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Simone SCHULTE, Markus Hallack, Michael Huth, Juri Tschernjaew, Stefan Fischer, Thomas Jüstel, Franziska Schröder, Sven Reetz
  • MATERIALS COMPRISING CARBON-EMBEDDED IRON NANOPARTICLES, PROCESSES FOR THEIR MANUFACTURE, AND USE AS HETEROGENEOUS CATALYSTS
    Publication number: 20220323941
    Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with iron nanoparticles dispersed therein, wherein dp, the average diameter of iron nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between iron nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/?>D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.
    Type: Application
    Filed: September 3, 2020
    Publication date: October 13, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Arne REINSDORF, Dorit WOLF, Renat KADYROV, Sarah CHAMSKl