Patents by Inventor Andreas Wollny

Andreas Wollny has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10661482
    Abstract: A process for the production of fiber-reinforced components or semifinished products is provided, where fibers are saturated with monomer. The process includes at least one of adding flakes including fibers and adding individual fibers. For this, the fibers, the monomer, and the flakes including fibers and/or the individual fibers are added to an injection-molding machine and forced into an injection mold, whereupon polymerization of the monomer is completed in the injection mold. Alternatively a fiber structure on a conveyor belt is saturated with a solution including a monomer, optionally including an activator, and optionally including a catalyst. In a following step, individual fibers and/or flakes including fibers are distributed on the saturated fiber structure, the fiber structure is passed through a roll pair in which pressure is exerted onto the fiber structure, and finally the saturated fiber structure is cooled so that the monomer solidifies.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: May 26, 2020
    Assignee: VOLKSWAGEN AG
    Inventors: Philippe Desbois, Andreas Wollny, Max Ehleben, Maurice Bitterlich, Katja Zeuner, Thomas Mertens, Olaf Taeger-Ing
  • Patent number: 10611889
    Abstract: The invention relates to a process for the production of saturated fiber structures. The process includes (a) introduction of a fiber structure onto a conveyor belt; (b) application of a solution including monomer and optionally including activator, and optionally including catalyst in at least one line to the fiber structure; (c) passage of the fiber structure with the solution through at least one roll pair in which pressure is exerted on the fiber structure; and (d) cooling of the saturated fiber structure, so that the monomer solidifies.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: April 7, 2020
    Assignee: BASF SE
    Inventors: Philippe Desbois, Andreas Wollny, Max Ehleben, Maurice Bitterlich, Katja Zeuner
  • Patent number: 10543648
    Abstract: A process arrangement and a process for the production of a fiber-reinforced plastics component made of at least one continuous-fiber-reinforced semifinished textile fiber product with reactive thermoplastic matrix material, where during the manufacture of the semifinished fiber product trimming residues arise, composed of a composite made of fibers and of the reactive thermoplastic matrix material. The trimming residues obtained during the manufacture of the semifinished fiber product are supplied to a recycling unit for the provision of a recyclate as reactive, as yet unpolymerized starting material for the production of a further component.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: January 28, 2020
    Assignees: VOLKSWAGEN AKTIENGESELLSCHAFT, BASF SE
    Inventors: Thomas Mertens, Max Ehleben, Christine Kunze, Olaf Täger, Maurice Bitterlich, Katja Zeuner, Philippe Desbois, Andreas Wollny
  • Patent number: 10538624
    Abstract: A process for producing an activated monomer composition comprising at least one lactam and/or lactone, one catalyst, and one activator permits storage of the resultant monomer composition, since this is stable with respect to polymerization. Said monomer composition is used inter alia in producing a polyamide molding via ring-opening, anionic polymerization.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: January 21, 2020
    Assignee: BASF SE
    Inventors: Dietrich Scherzer, Philippe Desbois, Volker Warzelhan, Andreas Wollny, Andreas Radtke, Axel Wilms, Martin Klatt
  • Patent number: 10017609
    Abstract: Polyamides based on dicarboxylic acids and on diamines are produced in a batch process by 1) feeding the entire amount of monomer composed of dicarboxylic acids, of diamines, and, if appropriate, of further polyamide-forming monomers, in the desired stoichiometry, in a closed stirred-tank reactor, 2) heating the monomer mixture in the stirred-tank reactor, with stirring, and with setting of a certain pressure, to a desired reaction temperature for the production of a prepolymer, 3) if appropriate, completely or partially depressurizing the reaction mixture from stage 2), 4) if appropriate, carrying out further thermal treatment of the reaction mixture from stage 2) or 3), and 5) reacting the reaction mixture from stage 2), 3), or 4) in the melt in a vented extruder for further increase of the molecular weight, with discharge of water vapor, and without use of additional polyamide-forming monomers or of polyamides.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: July 10, 2018
    Assignee: BASF SE
    Inventors: Philippe Desbois, Faissal-Ali El-Toufaili, Michael Gall, Andreas Wollny
  • Publication number: 20180094109
    Abstract: The invention relates to a process for the production of saturated fiber structures. The process includes (a) introduction of a fiber structure onto a conveyor belt; (b) application of a solution including monomer and optionally including activator, and optionally including catalyst in at least one line to the fiber structure; (c) passage of the fiber structure with the solution through at least one roll pair in which pressure is exerted on the fiber structure; and (d) cooling of the saturated fiber structure, so that the monomer solidifies.
    Type: Application
    Filed: July 29, 2015
    Publication date: April 5, 2018
    Inventors: Philippe Desbois, Andreas Wollny, Max Ehleben, Maurice Bitterlich, Katia Zeuner
  • Publication number: 20180065326
    Abstract: A process arrangement and a process for the production of a fiber-reinforced plastics component made of at least one continuous-fiber-reinforced semifinished textile fiber product with reactive thermoplastic matrix material, where during the manufacture of the semifinished fiber product trimming residues (mR, mA) arise, composed of a composite made of fibers and of the reactive thermoplastic matrix material, and during finishing of the finished plastics component final-trimming residues (mE) arise, composed of a composite of fibers and of polymerized thermoplastic matrix material, and are further processed in a recycling unit to give a recyclate. The trimming residues arising during the manufacture of the semifinished fiber product are polymerized in a preparatory unit and then are delivered in the invention to the recycling unit.
    Type: Application
    Filed: February 15, 2016
    Publication date: March 8, 2018
    Applicants: Volkswagen AG, BASF SE
    Inventors: Thomas MERTENS, Max EHLEBEN, Christine KUNZE, Olaf TÄGER, Maurice BITTERLICH, Katja ZEUNER, Philippe DESBOIS, Andreas WOLLNY
  • Publication number: 20180050504
    Abstract: A process arrangement and a process for the production of a fiber-reinforced plastics component made of at least one continuous-fiber-reinforced semifinished textile fiber product with reactive thermoplastic matrix material, where during the manufacture of the semifinished fiber product trimming residues arise, composed of a composite made of fibers and of the reactive thermoplastic matrix material. The trimming residues obtained during the manufacture of the semifinished fiber product are supplied to a recycling unit for the provision of a recyclate as reactive, as yet unpolymerized starting material for the production of a further component.
    Type: Application
    Filed: February 15, 2016
    Publication date: February 22, 2018
    Applicant: Volkswagen AG
    Inventors: Thomas MERTENS, Max EHLEBEN, Christine KUNZE, Olaf TÄGER, Maurice BITTERLICH, Katja ZEUNER, Philippe DESBOIS, Andreas WOLLNY
  • Publication number: 20180029249
    Abstract: A process for the production of fiber-reinforced components or semifinished products is provided, where fibers are saturated with monomer. The process includes at least one of adding flakes including fibers and adding individual fibers. For this, the fibers, the monomer, and the flakes including fibers and/or the individual fibers are added to an injection-molding machine and forced into an injection mold, whereupon polymerization of the monomer is completed in the injection mold. Alternatively a fiber structure on a conveyor belt is saturated with a solution including a monomer, optionally including an activator, and optionally including a catalyst. In a following step, individual fibers and/or flakes including fibers are distributed on the saturated fiber structure, the fiber structure is passed through a roll pair in which pressure is exerted onto the fiber structure, and finally the saturated fiber structure is cooled so that the monomer solidifies.
    Type: Application
    Filed: February 23, 2016
    Publication date: February 1, 2018
    Inventors: Philippe Desbois, Andreas Wollny, Max Ehleben, Maurice Bitterlich, Katja Zeuner, Thomas Mertens, Olaf Taeger-lng
  • Publication number: 20170226301
    Abstract: The invention relates to a process for the production of saturated fiber structures. The process includes (a) introduction of a fiber structure onto a conveyor belt; (b) application of a solution including monomer and optionally including activator, and optionally including catalyst in at least one line to the fiber structure; (c) passage of the fiber structure with the solution through at least one roll pair in which pressure is exerted on the fiber structure; and (d) cooling of the saturated fiber structure, so that the monomer solidifies.
    Type: Application
    Filed: July 29, 2015
    Publication date: August 10, 2017
    Inventors: Philippe Desbois, Andreas Wollny, Max Ehleben, Maurice Bitterlich, Katia Zeuner
  • Publication number: 20160340509
    Abstract: The present invention relates to the use of polyolefin copolymers A) for reducing color changes during the heating of polymer compositions which contain at least one thermoplastic polyamide B).
    Type: Application
    Filed: January 26, 2015
    Publication date: November 24, 2016
    Applicant: BASF SE
    Inventors: Christian Schmidt, Florian Richter, Joachim Clauss, Andreas Wollny, Philippe Desbois, Faissal-Ali El-Toufaili, Achim Stammer, Stefan Schwiegk
  • Patent number: 9486981
    Abstract: The present invention relates to a process for preparing a composition comprising (A) at least one lactam, (B) at least one catalyst, (C) an activator from the group consisting of isocyanates, acid anhydrides, acyl halides, reaction products thereof with (A) and mixtures thereof, (D) at least one polyethyleneimine. The invention likewise relates to a composition comprising (i) 0.01 to 10 wt %, based on the sum total of components (A) and (D), of at least one polyethyleneimine, and (ii) 90 to 99.99 wt %, based on the sum total of components (A) and (D), of at least one lactam (A) and/or polyamide obtainable from (A).
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: November 8, 2016
    Assignee: BASF SE
    Inventors: Philippe Desbois, Andreas Wollny, Andreas Radtke, Bernd Bruchmann, Anna Karina Möller
  • Patent number: 9315626
    Abstract: The present invention relates to a process for preparing a polyamide based on dicarboxylic acids and diamines, comprising the following stages: A) providing an aqueous monomer mixture composed of dicarboxylic acids and diamines, where the molar ratio of dicarboxylic acids to diamines is adjusted such that, at the outlet of stage C), there is a molar deficiency of dicarboxylic acids or diamines of 1 to 10 mol %, based on the respective other component, B) transferring the aqueous mixture from stage A) into a continuous evaporator reactor in which diamines and dicarboxylic acids are converted at a temperature in the range from 100 to 370° C. and a pressure in the range from 1 to 50 bar, C) transferring the mixture from stage B) into a separator which is operated at a temperature in the range from 100 to 370° C.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: April 19, 2016
    Assignee: BASF SE
    Inventors: Faissal-Ali El-Toufaili, Philippe Desbois, Andreas Wollny, Sven Lawrenz, Christian Schmidt
  • Patent number: 9139692
    Abstract: The present invention relates to a novel process for the anionic polymerization of lactam monomers.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: September 22, 2015
    Assignee: BASF SE
    Inventors: Silke Biedasek, Philippe Desbois, Mohammed Abboud, Andreas Wollny
  • Patent number: 9139752
    Abstract: The present invention relates to a process for producing polyamides, preferably crosslinked polyamides, via anionic polymerization of lactams in the presence of an anionic catalyst and of a caprolactam-capped polyisocyanate, where said isocyanate comprises more than 3.5 capped isocyanate groups.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: September 22, 2015
    Assignee: BASF SE
    Inventors: Philippe Desbois, Bernd Bruchmann, Dietrich Scherzer, Andreas Wollny, Andreas Radtke
  • Patent number: 9109085
    Abstract: Semiaromatic, semicrystalline copolyamide molding compositions, comprising A) from 35 to 100% by weight of a copolyamide composed of a1) from 35 to 69% by weight of units which derive from hexamethylenediamine and from an aromatic dicarboxylic acid having from 8 to 16 carbon atoms, a2) from 31 to 65% by weight of units which derive from 3,3?-dimethyl-4,4?-diaminodicyclohexylmethane and from terephthalic acid, a3) from 0 to 30% by weight of units of a semicrystalline polyamide different from a1) and a2), B) from 0 to 65% by weight of further additives, where the total of the percentages by weight of A) and B) is 100%.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: August 18, 2015
    Assignee: BASF SE
    Inventors: Philippe Desbois, Andreas Wollny
  • Patent number: 9085110
    Abstract: The invention relates to a process for producing fiber-reinforced flat semifinished products based on a polyamide matrix, comprising the following steps: (a) saturation of textile structures with a mixture comprising molten lactam, catalyst, and optionally activator, (b) cooling of the saturated textile structures, and (c) finishing of the cooled textile structures to give the fiber-reinforced flat semifinished product. The invention further relates to a process for producing a component made of the fiber-reinforced flat semifinished product.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: July 21, 2015
    Assignee: BASF SE
    Inventors: Dietrich Scherzer, Stephan Schäfer, Andreas Radtke, Andreas Wollny, Max Ehleben, Olaf Täger, Jörg Hain, Manfred Kramer, Christoph Hermes
  • Publication number: 20140142274
    Abstract: The present invention relates to solid particles which comprise at least one lactam, and also at least one activator, and at least one catalyst, to a process for the production of these, and also to the use of these for the production of polyamide, and to a process for the production of polyamide.
    Type: Application
    Filed: July 2, 2012
    Publication date: May 22, 2014
    Applicant: BASF SE
    Inventors: Philippe Desbois, Silke Biedasek, Andreas Wollny
  • Publication number: 20130320588
    Abstract: The invention relates to a process, comprising the following steps, for connecting two plastics elements to give a component, where a second plastics element is connected to a first plastics element by molding-on in a molding process or forming process: (a) inserting the first plastics element into a mold, where the first plastics element comprises at least one thermoplastic as matrix material, (b) introducing a plastics molding composition into the mold for molding the second plastics element, where the plastics molding composition comprises at least one thermoplastic having reactive groups or one mixture made of at least one thermoplastic and of a material having reactive groups which react chemically with reactive groups of the thermoplastic of the first plastics element.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Applicant: BASF SE
    Inventors: Gijsbrecht Jacobus Maria Habraken, Manoranjan Prusty, Alireza Talebloo, Tobias Pfefferkorn, Andreas Wollny, Andreas Radtke, Jörg Schnorr, Oliver Geiger, Sameer Nalawade
  • Publication number: 20130221555
    Abstract: The invention relates to a process for producing moldings made of a fiber-reinforced polymer, comprising the following steps: (a) inserting a fiber structure into a mold and injecting a polymer precursor compound around the fiber structure or saturating a fiber structure with a polymer precursor compound and inserting the saturated fiber structure into a mold, where the viscosity of the polymer precursor compound is at most 2000 mPas, (b) polymerizing the polymer precursor compound to give the polymer, to produce the molding, (c) removing the molding from the mold as soon as the polymerization process has proceeded at least to the extent that the molding is in essence dimensionally stable.
    Type: Application
    Filed: August 24, 2012
    Publication date: August 29, 2013
    Applicant: BASF SE
    Inventors: Andreas RADTKE, Philippe Desbois, Andreas Wollny