Patents Assigned to Evonik Degussa GmbH
  • Patent number: 10792619
    Abstract: The present invention relates to a method for curing adhesives used in the manufacture of membrane modules containing polymeric membranes, particularly polyimide based membranes used for the nanofiltration or ultrafiltration of solutes dissolved in organic solvents using microwaves. To maximise the chemical resistance of the adhesive used in these organic solvent applications, it must be as fully reacted and crosslinked (“cured”) as possible. Typically, thermal processing (heating) of the entire membrane module is used to cure the adhesives. However, the time and temperature required to achieve this high degree of completion of reaction may damage the separation performance of the membrane contained within the membrane module. In one particular aspect, this process utilises microwaves to preferentially promote the curing of epoxy adhesives over the general heating of the membrane module.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: October 6, 2020
    Assignee: Evonik Degussa GmbH
    Inventors: Fui Wen Lim, Andrew Guy Livingston, Andrew Timothy Boam
  • Publication number: 20200230703
    Abstract: Process for producing a tungsten oxide powder or a tungsten mixed oxide powder of general formula MxWO3, wherein M=Na, K, Rb, Li and/or Cs, 0.1?x?0.5, comprising the consecutive steps of: a) providing a solution comprising respectively at least one tungsten compound and optionally at least one M-comprising compound in a concentration corresponding to the stoichiometry MxWO3, b) atomizing the solution, thus forming an aerosol, into a reaction space, c) reacting the aerosol in the reaction space with a hydrogen/oxygen flame for which the expression 1<O2,primary/0.5H2?3 applies, wherein the reaction space is configured such that it comprises two reaction zones with two different velocities of the reaction mixture v1 and v2 where v2=0.3-0.8 v1 and 0.5?v1?10 Nm/s, d) separating the solid from vaporous or gaseous substances and e) passing a reducing gas stream over the separated solid at a temperature of 450-700° C.
    Type: Application
    Filed: January 23, 2017
    Publication date: July 23, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Stipan KATUSIC, Peter KRESS, Harald ALFF, Armin WIEGAND, Michael HAGEMANN
  • Publication number: 20200231537
    Abstract: The present invention relates to a process for the N-alkylation of amines by reacting an amine with an orthocarboxylic acid ester and with hydrogen in the presence of a hydrogenation catalyst.
    Type: Application
    Filed: January 23, 2017
    Publication date: July 23, 2020
    Applicant: Evonik Degussa GmbH
    Inventor: Renat KADYROV
  • Publication number: 20200199492
    Abstract: The present invention is directed to biodegradable cleaning compositions, in particular hard surface cleaning compositions, and their use. The compositions according to the invention comprise one or more biosurfactants(s), one or more sorbitan ester(s) and one or more further surfactant(s), which is/are neither a biosurfactant nor a sorbitan ester.
    Type: Application
    Filed: April 26, 2018
    Publication date: June 25, 2020
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Zheng XUE, Andras NAGY, Dennis PARRISH, Sam CHRISTY, Jennifer GOODYEAR, Jeff DAVIDSON
  • Publication number: 20200165278
    Abstract: A trichlorogermanide of formula (I): [R4N]/[R4P]Cl[GeCl3] (I), where R is Me, Et, iPr, nBu, or Ph, tris(trichlorosilyl)germanide of formula (II): [R4N]/[RrP][Ge(SiCl3)3] (II), where R is Me, Et, iPr, nBu, or Ph, a tris(trichlorosilyl)germanide adduct of GaCl3 of formula (III): [Ph4P][Ge(SiCl3)3*GaCl3], and a tris(trichlorosilyl)germanide adduct of BBr3 of formula (IV): [Ph4P][Ge(SiCl3)3*BBr3]. Also, methods for preparing the trichlorogermanides of formula (I), the tris(trichlorosilyl)germanide of formula (II), the tris(trichlorosilyl)germanide adduct of BBr3 of formula (IV).
    Type: Application
    Filed: January 28, 2020
    Publication date: May 28, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Julian Teichmann, Matthias Wagner, Hans-Wolfram Lerner
  • Patent number: 10647628
    Abstract: The invention relates to a catalyst system for oligomerizing olefins over a catalyst comprising nickel, to the use of this catalyst and to a method for dimerizing olefins.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: May 12, 2020
    Assignee: Evonik Degussa GmbH
    Inventors: Andreas Ehrmaier, Ricardo Bermejo De Val, Maria Cruz Sanchez-Sanchez, Yue Liu, Johannes A. Lercher, Stephan Peitz, Guido Stochniol
  • Publication number: 20200115334
    Abstract: The present invention relates to a method for preparing methionine or methionine salts. In particular, the invention describes the step of preparing 2-hydroxy-4-(methylthio)butyronitrile (MMP-CN) from 3-methylthiopropanal (MMP) and hydrogen cyanide (HCN) in the presence of ammonia by bringing a gaseous mixture comprising HCN and ammonia into contact with MMP.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 16, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Judith HIEROLD, Daniel SUDHOFF, Martin STEURENTHALER, Hans Joachim HASSELBACH, Philipp ROTH, Thorsten MERKER, Markus HELD, Daniel FISCHER, Christian KAISER
  • Publication number: 20200109101
    Abstract: The invention relates to a process for hydroformylating short-chain olefins, especially C2 to C5 olefins, in which the catalyst system is in heterogenized form on a support of a porous ceramic material, and to plants for performing this process.
    Type: Application
    Filed: September 18, 2019
    Publication date: April 9, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Jennifer Haßelberg, Robert Franke, Frank Stenger, Peter Kreis, Corinna Hecht, Marc Oliver Kristen
  • Publication number: 20200109102
    Abstract: The invention relates to a process for hydroformylating short-chain olefins, especially C2 to C5 olefins, in which the catalyst system is in heterogenized form on a support of a porous ceramic material, and to plants for performing this process.
    Type: Application
    Filed: September 20, 2019
    Publication date: April 9, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Corinna Hecht, Robert Franke, Frank Stenger, Peter Kreis, Jennifer Haßelberg, Marc Oliver Kristen
  • Publication number: 20200109056
    Abstract: Silica particles having a BET surface area from 0.1 to 7 m2/g, a pack density from 35 to 55 lb/ft3, an Einlehner abrasion value from 8 to 25 mg lost/100,000 revolutions, a total mercury intrusion pore volume from 0.7 to 1.2 cc/g, and a stannous compatibility from 70 to 99%, are disclosed, as well as methods for making these silica particles.
    Type: Application
    Filed: December 1, 2017
    Publication date: April 9, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Karl William GALLIS, Wiliam Jackson HAGAR, Terry William NASSIVERA, Lawrence Edward DOLAN, Sanjeev MIDHA, Eva SCHNEIDERMAN
  • Publication number: 20200087446
    Abstract: A curing agent composition comprising anhydride and approximately equimolar amount of tertiary amine or imidazole and carboxylic acid, the amine being 1-piperidinylethanol (N-hydroxyethyl-piperidine, NHEP) represented by the structure below or an imidazole represented by the structure below: where R1=H, a C1-C20 straight chain or branched alkyl, or a monocyclic aryl; R2=a C1-C20 straight chain or branched alkyl, or a monocyclic aryl. The carboxylic acid is represented by RCOOH; R=a C1-C20 straight chain or branched alkyl, or a monocyclic aryl. The composition comprises a lower ratio of epoxy resin to anhydride (1:0.4-0.6) than typically used (1:0.8-1.1). In addition, it uses a higher loading of the hindered latent tertiary amine or the imidazole in combination with the carboxylic acid (wt % ratio of combined amine and carboxylic acid to anhydride ˜10%). With this composition a full cure can be achieved in less than 2 hr at a significantly lower temperature (˜100° C.).
    Type: Application
    Filed: December 12, 2017
    Publication date: March 19, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Pritesh G. PATEL, Gauri Sankar LAL, Douglas M. LA COMARE
  • Patent number: 10589263
    Abstract: Markovnikov-selective palladium catalyst for carbonylation of alkynes is formed from a bisphosphite having formula (1): The carbonylation catalyst is suited for the preparation of a branched heteroarene-keto product from an alkyne substrate, CO and heterocycle in high yields with low amounts of the linear product.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: March 17, 2020
    Assignee: EVONIK DEGUSSA GMBH
    Inventors: Haoquan Li, Jie Liu, Ralf Jackstell, Matthias Beller, Robert Franke
  • Publication number: 20200079964
    Abstract: The present invention relates to a composition comprising at least A) an adduct of isocyanatosilanes with hydroxy-functional compounds, B) a tin-free catalyst, C) an aminosilane and also to a coating composition comprising at least the composition and to the use of the coating composition.
    Type: Application
    Filed: May 13, 2019
    Publication date: March 12, 2020
    Applicant: Evonik Degussa GmbH
    Inventor: Tobias Unkelhäußer
  • Publication number: 20200079894
    Abstract: The present invention relates to a composition at least comprising A) an adduct of isocyanatosilanes with hydroxy-functional compounds and B) a tin-free catalyst, and also to a coating composition comprising at least the composition and to the use of the coating composition.
    Type: Application
    Filed: May 13, 2019
    Publication date: March 12, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Tobias Unkelhäußer, Emmanouil Spyrou, Stephanie Hösl, Dennis Menne, Guido Streukens
  • Publication number: 20200080118
    Abstract: The invention relates to a recombinant, L-amino acid-secreting microorganism of the Enterobacteriaceae family, comprising an DNA fragment having promoter activity that is functionally linked to a polynucleotide coding for a membrane protein, characterized in that the DNA fragment having promoter activity comprises the SEQ ID NO: 8.
    Type: Application
    Filed: August 7, 2019
    Publication date: March 12, 2020
    Applicant: EVONIK DEGUSSA GMBH
    Inventor: Mechthild Rieping
  • Patent number: 10576663
    Abstract: Very good impregnation quality is achieved by a process for production of a fiber-composite material, with introducing a fiber layer by a spreader device and thus spreading to a width greater than that of the final product, at least by a factor of 1.2, where the extent of spreading of the fiber layer is such that its average thickness is 1 to 50 times the filament diameter; applying a melt by at least one applicator nozzle to the spread material; by virtue of cross-section-narrowing, the mould brings the width of the wetted fiber layer at least to the cross section with which the product leaves the take-off die; a radius then deflects the wetted fibers by an angle of 5 to 60°; a relaxation zone renders the fiber distribution more uniform to give a uniform height; achieving the first shaping by a take-off die at the end of the mould.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: March 3, 2020
    Assignee: Evonik Degussa GmbH
    Inventors: Mark Reinhard Berlin, Udo Sondermann
  • Patent number: 10577479
    Abstract: Tripentyl esters of trimellitic acid, especially mixtures of triisopentyl esters of trimellitic acid comprising isomeric pentyl radicals in which more than 5 mol % of the isomeric pentyl radicals incorporated in the ester mixture are branched, have good compatibility with PVC and PVC-containing polymers and simultaneously exhibit a lesser tendency to migrate.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 3, 2020
    Assignee: Evonik Degussa GmbH
    Inventors: Benjamin Woldt, Michael Grass, Florian Boeck
  • Publication number: 20200063172
    Abstract: The present invention relates to a microbial cell for producing at least one L-amino acid from at least one C1-C4 alkane, wherein the cell comprises: (i) an increased expression relative to the wild type cell of Enzyme E1 capable of converting the alkane to a corresponding 1-alkanol; (ii) an increased expression relative to the wild type cell of Enzyme E2 capable of converting the 1-alkanol of (i) to a corresponding aldehyde; and either (iii) (A) an increased expression relative to the wild type cell of Enzyme E3 capable of converting the aldehyde of (ii) to a corresponding alkanoic acid; and a wild-type level expression of Enzyme E4 or an increased expression relative to the wild type cell of Enzyme E4 capable of converting the alkanoic acid of (iii) to a corresponding fatty acyl thioester; or ?(B) an increased expression relative to the wild type cell of Enzyme E5 capable of converting the aldehyde of (ii) to a corresponding fatty acyl thioester; ?and (iv) an increased expression relative to the wi
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Philip Engel, Steffen Schaffer, Oliver Thum, Heiko Andrea, Christian Gehring, Bastian Grund
  • Publication number: 20200062661
    Abstract: Silicon dioxide-containing thermal-insulation sheet hydrophobized throughout with hardened surface, wherein the compressive stress at fracture measured on the sheet surface is higher than the compressive stress at fracture measured on the sectional surface in the middle cross section of the sheet parallel to the sheet surface, at, in each case, the same penetration depths of the measurement probe in the test specimen.
    Type: Application
    Filed: May 8, 2018
    Publication date: February 27, 2020
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Matthias Geisler, Frank MENZEL
  • Publication number: 20200055991
    Abstract: Described is a process for producing trifluoromethanesulfonic acid-acidified, end-equilibrated, acetoxy-bearing siloxanes which comprises reacting cyclic siloxanes, in particular comprising D4 and/or D5, and/or cyclic branched siloxanes of the D/T type with acetic anhydride using trifluoromethanesulfonic acid as catalyst and with addition of acetic acid.
    Type: Application
    Filed: July 1, 2019
    Publication date: February 20, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Wilfried Knott, Horst Dudzik, Frauke Henning, Jan Caßens