Patents by Inventor Rudolf Pfaendner

Rudolf Pfaendner 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: 10913743
    Abstract: The present invention relates to the use of organic oxy imides as flame retardants for plastics. According to the present invention, a flame-retardant plastics composition is likewise specified, including an oxy imide as flame retardant. Additionally specified are mouldings produced from an inventive flame-retardant polymer composition.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: February 9, 2021
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Rudolf Pfaendner, Elke Metzsch-Zilligen, Maria Stec
  • Publication number: 20200361879
    Abstract: The invention relates to compounds of a new type which have a stabilizing effect and in particular provide stabilization with respect to oxidative thermal and/or actinic decomposition of or damage to organic materials. The compounds are represented by general formula I specified below. The invention further relates to a method for producing such compounds, to compositions containing said compound, to a method for stabilizing organic compounds by means of the stabilizing compounds, and to the use of the stabilizing compounds to stabilize organic materials.
    Type: Application
    Filed: November 14, 2018
    Publication date: November 19, 2020
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
    Inventors: Johannes FISCHER, Elke METZSCH-ZILLINGEN, Rudolf PFAENDNER
  • Publication number: 20200317886
    Abstract: The invention relates to a method for stabilizing halogen-free thermoplastic recyclates or pre-damaged plastics against oxidative, thermal, and/or actinic degradation. In the method according to the invention, at least one alditol or cyclitol is introduced into a halogen-free thermoplastic recyclate as a component, and optionally in addition thereto, at least one primary antioxidant and/or at least one secondary antioxidant is introduced into a halogen-free thermoplastic recyclate. By virtue of the method according to the invention, plastic recyclates can be stabilized against oxidative, thermal, and/or actinic degradation with a high degree of effectiveness and in a very environmentally friendly and inexpensive manner.
    Type: Application
    Filed: September 25, 2018
    Publication date: October 8, 2020
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
    Inventors: Rudolf PFAENDNER, Elke METZSCH-ZILLIGEN
  • Patent number: 10781296
    Abstract: The present invention relates to a polymer composition, which contains or consists of a matrix of at least one thermoplastic polymer capable of crystallization and, incorporated therein, at least one azine dye and at least one ion liquid. Said polymer composition is characterized in that the crystallization point relative to non-additivated polymer compositions is substantially reduced. The invention further relates to a corresponding additive composition for the crystallization and/or for the lowering of the crystallization point of thermoplastic polymers or polymer compositions capable of crystallization.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: September 22, 2020
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Benjamin Groos, Rudolf Pfaendner
  • Publication number: 20200231783
    Abstract: The present invention relates to the use of halogen-free sulphonic acid esters and/or sulphinic acid esters as flame retardant and/or flame retardant synergists in plastics. The invention furthermore relates to the use of said compounds as radical generators in plastics, particularly in order to increase the molecular weight of the plastics, to branch and/or cross-link the plastics, to reduce the molecular weight of the plastics, to influence the molecular weight distribution of the plastics and to graft unsaturated monomers to the plastics. The present invention furthermore relates to the use of flame-retardant plastic compositions in the electrical or electronics industry, construction industry, transport industry, preferably automobiles, aircraft, trains and ships, for medical applications, for household appliances, vehicle parts, consumer products, packaging, furniture and textiles.
    Type: Application
    Filed: July 25, 2018
    Publication date: July 23, 2020
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
    Inventors: Rudolf PFAENDNER, Thomas DRIEVER, Anina LEIPOLD, Elke METZSCH-ZILLIGEN
  • Patent number: 10544284
    Abstract: The present invention relates to the use of phosphorous-containing organic oxyimides according to the general formula (I) as flame retardant for plastic materials, as radical generators in plastic materials and/or stabilisers for plastics. In addition, the present invention relates to a flame-retardant plastic material moulding compound in which the previously described phosphorous-containing organic oxyimides are integrated, and also to a method for the production of the previously mentioned plastic material composition. Furthermore, the present invention relates to a moulded article, a paint or a coating from the previously mentioned flame-retardant plastic material composition.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: January 28, 2020
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Rudolf Pfaendner, Markus Mazurowski
  • Patent number: 10450442
    Abstract: The invention relates to the use of organic oxyimide salts as flame retardants for plastics and to a corresponding flame retardant plastic composition. The invention also relates to a method for producing said type of plastic composition or a molded part produced therefrom, a molding compound, a molded part, paint or a coating.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: October 22, 2019
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Rudolf Pfaendner, Markus Mazurowski
  • Patent number: 10435521
    Abstract: An inventive process for the production of a polymer composition is provided, said process comprising the incorporation of a filler into a polymer material, wherein said polymer material during incorporation of the filler is in at least partially molten state and wherein said filler is incorporated as a slurry.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: October 8, 2019
    Assignees: OMYA INTERNATIONAL AG, FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER
    Inventors: Michael Tinkl, Martin Brunner, René Burkhalter, Tazio Fornera, Giuseppe Schirosi, Rudolf Pfaendner, Jan Barth, Bernd Dillmann, Harald Dörr
  • Publication number: 20190248927
    Abstract: The invention relates to a method for producing a polymer by means of nitroxyl-controlled polymerisation. According to the invention, a mixture is initiated which contains at least one radically polymerisable monomer and additionally contains at least one initiator, at least one reactive agent that converts at least one portion of the alkoxyamine end groups produced during the radical polymerisation into a non-polymerisable group, and at least one additive that accelerates the hydroxyl-controlled polymerisation and/or the conversion of the alkoxyamine end groups into a non-polymerisable group.
    Type: Application
    Filed: October 27, 2017
    Publication date: August 15, 2019
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
    Inventors: Roland KLEIN, Markus MAZUROWSKI, Konrad BURLON, Matthias WITTEMANN, Rudolf PFAENDNER
  • Patent number: 10370537
    Abstract: The present invention relates to the use of oxyimide-comprising copolymers or polymers as flame retardants for plastic materials, stabilisers for plastic materials, rheology modifiers for plastic materials and also as initiators for polymerisation- and grafting processes and/or crosslinking- or coupling agents. In addition, the present invention relates to plastic material molding compounds which comprise such copolymers or polymers.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: August 6, 2019
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Rudolf Pfaendner, Markus Mazurowski
  • Patent number: 10364340
    Abstract: The present invention relates to the use of phosphorus-containing organic oxyimides according to the general formula I described below as flame retardant for plastic materials, as radical generators in plastic materials and/or as stabilizers for plastic materials. The present invention relates in addition to a flame-retardant plastic material molding compound in which the previously described phosphorus-containing organic oxyimides are integrated, and also to a method for the production of the previously mentioned plastic material composition. Furthermore, the present invention relates to a molded part, a paint or a coating made of the previously mentioned flame-retardant plastic material composition.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: July 30, 2019
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Rudolf Pfaendner, Markus Mazurowski
  • Patent number: 10323136
    Abstract: The present invention relates to the use of N-hydroxybenzotriazole derivatives, in particular N-hydroxybenzotriazole salts and/or N-hydroxyindazoles, in particular N-hydroxyindazole salts as flame retardant for plastic materials. The present invention relates in addition to a flame-retardant plastic material molding compound which comprises N-hydroxybenzotriazole derivatives and/or N-hydroxyindazole derivatives as flame retardant.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: June 18, 2019
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Rudolf Pfaendner, Markus Mazurowski
  • Patent number: 10221301
    Abstract: The invention relates to flame retardants for plastics such as, for example, synthetic polymers and plastic compositions, as well as corresponding production methods and uses.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: March 5, 2019
    Assignee: J.M. Huber Corporation
    Inventors: Marcus Leistner, Rudolf Pfaendner, Trupti Dave, Hans-Günter Köstler, Wolfgang Wehner, Yann Bourgeois
  • Patent number: 10214631
    Abstract: The present invention relates to a polymer composition with improved long-term stability which comprises at least one thermoplastic polymer, carbon nanotubes, at least one antioxidant and also at least one additive or consists hereof. In addition, the present invention relates to molded parts which can be produced from the polymer compositions according to the invention. The invention likewise indicates possibilities for use of the polymer composition or of the molded parts.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: February 26, 2019
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Rudolf Pfaendner, Elke Metzsch-Zillingen
  • Patent number: 10138354
    Abstract: The invention relates to a polymer composition, which contains or consists of a matrix of at least one thermoplastic polymer capable of crystallization and, incorporated therein, at least one azine dye and at least mono-, di-, tri-, and/or tetravalent metal salt. Said polymer composition is characterized in that the crystallization point thereof is considerably reduced in comparison with polymer compositions having no additives or a composition containing only an azine dye or a metal salt as an additive. The invention further relates to a corresponding additive composition for the crystallization and/or for the lowering of the crystallization point of thermoplastic polymers or polymer compositions capable of crystallization.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: November 27, 2018
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Benjamin Groos, Rudolf Pfaendner
  • Publication number: 20180186970
    Abstract: The present invention relates to a polymer composition, which contains or consists of a matrix of at least one thermoplastic polymer capable of crystallization and, incorporated therein, at least one azine dye and at least one ion liquid. Said polymer composition is characterized in that the crystallization point relative to non-additivated polymer compositions is substantially reduced. The invention further relates to a corresponding additive composition for the crystallization and/or for the lowering of the crystallization point of thermoplastic polymers or polymer compositions capable of crystallization.
    Type: Application
    Filed: June 13, 2016
    Publication date: July 5, 2018
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Benjamin GROOS, Rudolf PFAENDNER
  • Publication number: 20170267835
    Abstract: The invention relates to a polymer composition, which contains or consists of a matrix of at least one thermoplastic polymer capable of crystallization and, incorporated therein, at least one azine dye and at least mono-, di-, tri-, and/or tetravalent metal salt. Said polymer composition is characterized in that the crystallization point thereof is considerably reduced in comparison with polymer compositions having no additives or a composition containing only an azine dye or a metal salt as an additive. The invention further relates to a corresponding additive composition for the crystallization and/or for the lowering of the crystallization point of thermoplastic polymers or polymer compositions capable of crystallization.
    Type: Application
    Filed: December 7, 2015
    Publication date: September 21, 2017
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Benjamin GROOS, Rudolf PFAENDNER
  • Publication number: 20170260363
    Abstract: The present invention relates to the use of phosphorus-containing organic oxyimides according to the general formula I described below as flame retardant for plastic materials, as radical generators in plastic materials and/or as stabilisers for plastic materials. The present invention relates in addition to a flame-retardant plastic material moulding compound in which the previously described phosphorus-containing organic oxyimides are integrated, and also to a method for the production of the previously mentioned plastic material composition. Furthermore, the present invention relates to a moulded part, a paint or a coating made of the previously mentioned flame-retardant plastic material composition.
    Type: Application
    Filed: September 16, 2015
    Publication date: September 14, 2017
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Rudolf PFAENDNER, Markus MAZUROWSKI
  • Publication number: 20170260366
    Abstract: The present invention relates to the use of phosphorous-containing organic oxyimides according to the general formula (I) as flame retardant for plastic materials, as radical generators in plastic materials and/or stabilisers for plastics. In addition, the present invention relates to a flame-retardant plastic material moulding compound in which the previously described phosphorous-containing organic oxyimides are integrated, and also to a method for the production of the previously mentioned plastic material composition. Furthermore, the present invention relates to a moulded article, a paint or a coating from the previously mentioned flame-retardant plastic material composition.
    Type: Application
    Filed: September 16, 2015
    Publication date: September 14, 2017
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Rudolf PFAENDNER, Markus MAZUROWSKI
  • Publication number: 20170260362
    Abstract: The invention relates to the use of organic oxyimide salts as flame retardants for plastics and to a corresponding flame retardant plastic composition. The invention also relates to a method for producing said type of plastic composition or a moulded part produced therefrom, a moulding compound, a moulded part, paint or a coating.
    Type: Application
    Filed: September 16, 2015
    Publication date: September 14, 2017
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Rudolf PFAENDNER, Markus MAZUROWSKI