Patents Assigned to Covestro Intellectual Property GmbH & Co. KG
  • Patent number: 11591466
    Abstract: The present application relates to a polymer composition comprising from 20 wt % to 30 wt % of a polycarbonate; from 40 wt % to 60 wt % of a polybutylene terephthalate; from 5 wt % to 30 wt % of a reinforcement fiber; from 1 wt % to 10 wt % of glass bubbles, and from 0.3 wt % to 2 wt % of transesterification inhibitor, all contents are based on the total weight of the composition. The polymer composition according to the present invention has improved adhesion to the metal (especially aluminum), even after annealing and anodizing processes are applied.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: February 28, 2023
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Leith Wang, Xiaoxiang Wang
  • Patent number: 11548969
    Abstract: The invention relates to a process for the preparation of polyisocyanates with dimer, trimer and/or allophanate and optionally urethane structure.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: January 10, 2023
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Martin Brahm, Dieter Mager, Frank Richter, Jingchun Qian
  • Patent number: 11530149
    Abstract: The present invention relates to an aqueous composition comprising cells of at least one strain of a halophilic microorganism, and alkali sulfate in a concentration of at least 30 g/l based on the total volume of the aqueous composition. The present invention further relates to a method for treating a waste water, comprising obtaining or providing a waste water, contacting said waste water with cells of at least one strain of a halophilic microorganism, and thereby generating an aqueous composition comprising alkali sulfate in a concentration of at least 30 g/l, and incubating said aqueous composition under conditions which allow for the treatment of the waste water.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: December 20, 2022
    Assignee: Covestro Intellectual Property GMBH & Co. KG
    Inventors: Heike Heckroth, Rainer Weber, Christoph Herwig, Nicole Mahler
  • Patent number: 11485855
    Abstract: The present invention relates to a composition, preferably a polycarbonate composition, for production of a thermoplastic moulding compound, comprising or consisting of polycarbonate and/or polyestercarbonate, two different rubber-modified vinyl copolymers in a weight ratio of 20:80 to 90:10, wherein both rubber-modified vinyl copolymers contain vinyl copolymer incorporated in the rubber particles as a separate disperse phase, and wherein one of the vinyl copolymers contains at least one alkyl (meth)acrylate, and to the moulding compound itself, to the use of the composition or moulding compound for production of moulded articles, and to the moulded articles themselves.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: November 1, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventor: Andreas Seidel
  • Patent number: 11453897
    Abstract: The invention relates to a method for producing aminobenzoic acid or an aminobenzoic acid derivative using a fermentation process, in which (I) the aminobenzoic acid formed in the fermentation broth obtained by the fermentation is bound in part, or as much as possible based on the solubility equilibrium, as insoluble calcium-aminobenzoate, said insoluble calcium-aminobenzoate is then (II) either isolated as such or in a mixture with the microorganism used in the fermentation and transitioned into a water soluble form, while separating an insoluble calcium salt which is different from the calcium-aminobenzoate, and then (III) by introducing carbon dioxide under pressure into the aqueous solution from the precipitated calcium salt has been released, aminobenzoic acid is precipitated.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: September 27, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Gernot Jaeger, Guenter Olf, Franz Beggel, Wolf Kloeckner, Simon Klaff
  • Patent number: 11447595
    Abstract: Pultrudate based on polyurethane and carbon fibers and the production and use thereof.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: September 20, 2022
    Assignee: COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Dirk Wegener, Harald Rasselnberg, Andreas Hoffmann, Heike Schmidt, Renate Dellhofen
  • Patent number: 11441058
    Abstract: The invention relates to formulations of aqueous dispersion adhesives on the basis of aqueous polyurethane or polyurethane-urea dispersions and the use of the adhesive formulations for bonding foam substrates according to the spray coagulation method.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: September 13, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Harald Kraus, Robert Liberati, Peter Kueker, Martin Melchiors
  • Patent number: 11427671
    Abstract: A process for producing thermoplastic polyoxazolidinone, comprising the following steps: (i) Reaction of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E) forming an intermediate compound (F) and (ii) Reaction of a compound (G) with the intermediate (F) formed in step (i), wherein the bisepoxide compound (B) comprises isosorbide diglycidylether, wherein compound (D) is one or more compounds selected from the group consisting of monofunctional isocyanate and monofunctional epoxide, and wherein compound (G) is an alkylene oxide. The invention is also related to the resulting thermoplastic polyoxazolidinone.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: August 30, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Carsten Koopmans, Kai Laemmerhold, Christoph Guertler, Elena Frick-Delaittre, Aurel Wolf, Joachim Simon, Min Wang, Daniel Thiel, Walter Leitner
  • Patent number: 11420918
    Abstract: The invention relates to a method for producing a specific hydroxyl compound by decarboxylating a specific carboxylic acid compound or a salt of said carboxylic acid compound in the absence of a catalyst and to a method for producing a bisphenol.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: August 23, 2022
    Assignee: Covestro Intellectual Property GMBH & Co. KG
    Inventors: Niklas Meine, Erik Sluyts, Jan Heijl
  • Patent number: 11406964
    Abstract: The present invention relates to a catalyst for preparing carbamates, in particular aromatic carbamates, comprising a binary oxide having the formula L1-xMxO2, wherein L is a metal selected from the lanthanoid series and M is a metal selected from the group consisting of Sc, Y, Ti, Zr, Hf, metals from the lanthanoid series and metals from the actinoid series, and wherein x ranges from 0.01 to 0.05. The present invention also relates to a method for producing said catalysts and a method of utilizing said catalysts in the production of carbamates, in particular aromatic carbamates.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: August 9, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Stefan Wershofen, Anton Vidal-Ferran, José Luis Núñez Rico, Javier Perez-Ramirez, Begona Puertolas Lacambra, Amol P. Amrute
  • Patent number: 11407852
    Abstract: The present invention relates to a modified polyisocyanate and use thereof, in particular as a crosslinking component of water-soluble or water-dispersible coatings. The modified polyisocyanate is obtained by a reaction of a system comprising the following components: at least an aminosulfonic acid; at least a polyisocyanate; at least a tertiary amine; and optionally a polyether alcohol containing an ethylene oxide group. The modified polyisocyanate comprises at least an iminooxadiazinedione structure and at least an isocyanurate structure, the weight ratio of the iminooxadiazinedione structure to the isocyanurate structure being 1:300 to 1:5. The amount of sulfonate group of the modified polyisocyanate is 0.75% by weight to 1.1% by weight, based on the amount of the modified polyisocyanate as 100% by weight. The viscosity thereof is 500 mPa·s to 10000 mPa·s, as determined according to DIN EN ISO 3219:1994-10 at a temperature of 23° C. and a shear rate of 10 s?1.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: August 9, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Hans-Josef Laas, Hao Liu, Na Xu, Guoping Shi, Yaguang Ma, Tian Xia
  • Patent number: 11390020
    Abstract: The invention relates to a method for producing an object from different powdered components by means of additive manufacturing, wherein a plurality of powdered components having different melting points are simultaneously placed in precise positions, and the powder coating (1) is subsequently thermally treated. The construction material is, for example, polyether ether ketone (PEEK), polyaryl ether ketone (PAEK), polyether ketone ketone (PEKK), polyether sulfone, polyimide, polyether imide, polyester, polyamides, polycarbonates, polyurethanes, polyvinyl chloride, polyoxymethylene, polyvinyl acetate, polyacrylates, polymethacrylates, polyethylene, polypropylene, polylactide, ABS (acrylonitrile butadiene styrene copolymers), PETG (glycol modified polyethylene terephthalate), polystyrene, or mixtures thereof. The supporting material is an inorganic salt of the alkali metals, an inorganic salt of the alkaline earth metals, or a mixture thereof.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: July 19, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Dirk Achten, Bettina Mettmann, Thomas Buesgen, Roland Wagner, Maximilian Wolf
  • Patent number: 11365277
    Abstract: The invention relates to a process for producing polyisocyanates containing sulfonate groups, the products obtainable or obtained by said process and also to the use thereof as starting component for producing polyurethane plastics. The invention further relates to coating compositions comprising polyisocyanates containing sulfonate groups and also to the substrates coated with said coating compositions.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: June 21, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventor: Hans-Josef Laas
  • Patent number: 11353165
    Abstract: The invention relates to the use of branched aliphatic hydrocarbons such as squalane in compositions based on thermoplastic polymer, in particular on polycarbonate, which are used for producing molded parts used in LED lighting units, such as covers for instance. According to the invention it has been found that the use of branched aliphatic hydrocarbons makes it possible to enhance the total transmission and the transmission in the range from 360 to 460 nm, thus making corresponding compositions particularly suitable for producing molded parts for use in combination with white LED light sources. It has additionally been shown that yellowing and haze are simultaneously reduced.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: June 7, 2022
    Assignee: COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Ulrich Blaschke, Alexander Meyer, Rafael Oser, Michael Roppel, Franky Bruynseels
  • Patent number: 11319270
    Abstract: The invention relates to a process for preparing a specific hydroxy compound by means of decarboxylation of a specific carboxylic acid compound or a salt of said carboxylic acid compound, to a method for preparing a diaryl carbonate, a bisphenol or a polycarbonate, a diaryl carbonate or bisphenol, a polycarbonate, and to a method for adjusting the isotope ratio of C14 to C12 in a polymer. A specific solvent is used during decarboxylation.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: May 3, 2022
    Assignee: COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Natalie Bittner, Jens Langanke, Niklas Meine, Jan Heijl
  • Patent number: 11319402
    Abstract: The invention relates to a method for producing a polyisocyanate polymer and to the polyisocyanate polymer obtainable from the method and to the use thereof as part of a two-stage method for producing a polyisocyanurate plastic, in particular for producing coatings, films, semi-finished products or molded parts containing such a polyisocyanurate plastic.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: May 3, 2022
    Assignee: COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Heiko Hocke, Mathias Matner, Dirk Achten, Hans-Josef Laas, Dieter Mager
  • Patent number: 11311904
    Abstract: The invention relates to an improved method for the partial coloring, in particular for the color laser engraving, of plastic parts, in particular thermoplastic plastic parts, more particularly thermoplastic plastic parts that have a multi-layered structure, to the resulting partially colored, preferably color laser engraved, plastic parts, in particular thermoplastic plastic parts, and to a device for the partial coloring of plastic parts.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: April 26, 2022
    Assignee: COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Georgios Tziovaras, Roland Kuenzel
  • Patent number: 11298895
    Abstract: The invention relates to a method for producing fiber-reinforced composite parts by means of vacuum infusion of a reactive resin mixture, characterized in that the steps of production of the reactive resin mixture and injection into the cavity are carried out in an infusion device in immediate temporal succession.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: April 12, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventor: Andreas Frahm
  • Patent number: 11279809
    Abstract: The invention relates to flame-proofed polyurethane hard foam material or polyurethane/polyisocyanurate hard foam material (designated below individually or jointly also as “PUR/PIR hard foam material”) comprising phosphinates (also hypophosphite), and to a method for producing PUR/PIR hard foam materials through the implementation of a reaction mixture containing A1 an isocyanate-reactive component, A2 propellant, A3 catalyst, A4 optionally additive, A5 flame-proofing agent, B an isocyanate component, characterised in that the flame-proofing agent A5 contains a phosphine according to the formula (I)M[(R)2PO2]n, where R=in each case stands for H, C1- to C4-(hydroxy-)alkyl group or benzyl group, M=an element of the main groups 1 to 3, wherein hydrogen is excepted, and n=the number of the main group of M, and the proportion of the phosphine according to the formula (I) is 0.1 to 15 wt %, based on the total mass of components A1 to A5.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: March 22, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Rolf Albach, Torsten Hagen, Torsten Heinemann, Nicole Welsch
  • Patent number: 11247388
    Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are still free NCO groups in the material including the fusible polymer.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: February 15, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Dirk Achten, Thomas Buesgen, Joerg Tillack, Fabian Schuster, Ralf Rott, Nicolas Degiorgio, Jonas Kuenzel, Joerg Buechner, Wolfgang Arndt, Martin Melchiors, Harald Kraus