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).

  • Publication number: 20170121499
    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 moulding compound which comprises N-hydroxybenzotriazole derivatives and/or N-hydroxyindazole derivatives as flame retardant.
    Type: Application
    Filed: May 28, 2015
    Publication date: May 4, 2017
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Rudolf PFAENDNER, Markus MAZUROWSKI
  • Publication number: 20170107375
    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 moulding compounds which comprise such copolymers or polymers.
    Type: Application
    Filed: April 16, 2015
    Publication date: April 20, 2017
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Rudolf PFAENDNER, Markus MAZUROWSKI
  • Publication number: 20160289397
    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: Application
    Filed: December 17, 2014
    Publication date: October 6, 2016
    Inventors: Michael Tinkl, Martin Brunner, René Burkhalter, Tazio Fornera, Giuseppe Schirosi, Rudolf Pfaendner, Jan Barth, Bernd Dillmann, Harald Dörr
  • Publication number: 20160272789
    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 moulded 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 moulded parts.
    Type: Application
    Filed: November 18, 2013
    Publication date: September 22, 2016
    Applicant: FRAUNHOFER-GESELLACHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Rudolf PFAENDNER, Elke METZSCH-ZILLINGEN
  • Publication number: 20160052927
    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: Application
    Filed: March 24, 2014
    Publication date: February 25, 2016
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANTED FORSCHUNG E.V.
    Inventors: Rudolf PFAENDNER, Elke METZSCH-ZILLINGEN, Maria STEC
  • Publication number: 20150376375
    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: Application
    Filed: February 12, 2014
    Publication date: December 31, 2015
    Inventors: Marcus Leistner, Rudolf Pfaendner, Trupti Dave, Hans-Günter Köstler, Wolfgang Wehner, Yann Bourgeois
  • Patent number: 8735474
    Abstract: The invention relates to a flame retardant composition, wherein the following components: a) At least one flame retardant component selected from the group consisting of phosphinic acid salts and nitrogen containing compounds; and b) At least one polymeric dispersing agent selected from the group consisting of styrenemaleic acid anhydride copolymers, long chain carboxylic acid salts and aliphatic polyether substituted by acidic groups; and c) A polymer substrate; are present.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: May 27, 2014
    Assignee: BASF SE
    Inventors: Simon Kniesel, Rudolf Pfaendner
  • Patent number: 8686073
    Abstract: The invention relates to flame retardant compositions that contain mixtures of melamine polyphosphates with layered silicates added to the polymer substrates, particularly polyamides.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: April 1, 2014
    Assignee: BASF SE
    Inventors: Rudolf Pfaendner, Constantine D. Papaspyrides, Pantelis K. Kiliaris
  • Patent number: 8461272
    Abstract: The invention relates to a process and compositions suitable for reducing by heat the molecular weight of polypropylene, propylene copolymers or polypropylene blends. Azo compounds bearing different substituents are added to the polymers.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: June 11, 2013
    Assignee: BASF SE
    Inventors: Michael Roth, Rudolf Pfaendner, Carl-Eric Magnus Wilén, Ronan Nicolas
  • Publication number: 20130059952
    Abstract: The invention relates to compounds of the group of so-called sterically hindered amines (HALS) which are substituted by phospho groups. The invention also relates to flame retardant compositions wherein these compounds are added to the polymer substrate.
    Type: Application
    Filed: January 13, 2011
    Publication date: March 7, 2013
    Applicant: BASF SE
    Inventors: Rudolf Pfaendner, Michael Roth, Kai-Uwe Schöning, Thomas Weiss, Shrirang Bhikaji Hindalekar
  • Publication number: 20130052277
    Abstract: Disclosed is a process for preparing an antimicrobial article, wherein a silver colloid is formed in situ as a result of the components employed. The process comprises the steps of (i) providing a liquid, which contains a soluble polar polymer in a solvent selected from certain polar organic solvents; (ii) adding a silver salt selected from alpha-functionalized silver carboxylates to said liquid; (iii) allowing the mixture to react with formation of a silver colloid; and (iv) separating the solvent from the mixture and forming of the antimicrobial article. The antimicrobial articles thus obtained may be sheets, films, fibres, coating layers, and especially membranes like a semipermeable membrane for ultrafiltration, water separation or gas separation.
    Type: Application
    Filed: March 8, 2011
    Publication date: February 28, 2013
    Applicant: POLYMERS CRC LTD.
    Inventors: Thomas Weiss, Rudolf Pfaendner, Stefan Koch
  • Publication number: 20120252931
    Abstract: The present invention relates to a stabilizer composition comprising a phenolic antioxidant and/or a processing stabilizer together with selected glycidyl(meth)acrylate copolymers and a filled thermoplastic polymer, in particular a nanocomposite. Further aspects of the invention are a process for the stabilization of filled thermoplastic polymers, in particular nanocomposites with a phenolic antioxidant and/or a processing stabilizer together with selected glycidyl(meth)acrylate copolymers and the use of such a composition for the stabilization of filled thermoplastic polymers, in particular nano-composites.
    Type: Application
    Filed: November 30, 2010
    Publication date: October 4, 2012
    Applicant: BASF SE
    Inventor: Rudolf Pfaendner
  • Patent number: 8247479
    Abstract: The invention, relates to azo-compounds of formula (I), wherein >N—O—R substituted 2,2,6,6-tetraalkyl-piperidyl groups are present. These azo-compounds have excellent flame retardant properties, either if applied alone, or combined with other compounds, having flame retardant properties.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: August 21, 2012
    Assignee: BASF SE
    Inventors: Michael Roth, Rudolf Pfaendner, Carl-Eric Magnus Wilén, Melanie Aubert
  • Patent number: 8110626
    Abstract: The present invention is directed to compositions comprising (a) a synthetic polymer, (b) a talc as a filler, wherein the talc particles have a mean particle size of from 0.4 to 25 ?m, and are present in an amount of from 0.1 to 10% based on the weight of component (a) and (c) a dispersing agent which is based on a non-ionic surfactant or an amphiphilic statistical, block or comb copolymer, provided that when the synthetic polymer (a) is a polyamide, this is present in an amount of less than 55% based on the weight of (a), (b) and (c).
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: February 7, 2012
    Assignee: Advanced Polymerik PTY. Limited
    Inventors: Graeme Moad, Guoxin Li, Jonathan Andrew Campbell, Hendrik Wermter, Rudolf Pfaendner
  • Patent number: 8080613
    Abstract: The instant invention discloses a process for the preparation a polyolefin nanocomposite which comprises melt mixing a mixture of a polyolefin, a filler and a non-ionic surfactant.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: December 20, 2011
    Assignee: Advanced Polymerik Pty Ltd
    Inventors: Graeme Moad, George Philip Simon, Katherine Maree Dean, Guoxin Li, Roshan Tyrrel Anton Mayadunne, Rudolf Pfaendner, Hendrik Wermter, Armin Schneider
  • Publication number: 20110269880
    Abstract: The invention relates to flame retardant compositions that contain mixtures of melamine polyphosphates with layered silicates added to the polymer substrates, particularly polyamides.
    Type: Application
    Filed: December 9, 2009
    Publication date: November 3, 2011
    Applicant: BASF SE
    Inventors: Rudolf Pfaendner, Constantine D. Papaspyrides, Pantelis K. Kiliaris
  • Publication number: 20110190428
    Abstract: The invention relates to a flame retardant composition, wherein the following components: a) At least one flame retardant component selected from the group consisting of phosphinic acid salts and nitrogen containing compounds; and b) At least one polymeric dispersing agent selected from the group consisting of styrenemaleic acid anhydride copolymers, long chain carboxylic acid salts and aliphatic polyether substituted by acidic groups; and c) A polymer substrate; are present.
    Type: Application
    Filed: August 20, 2009
    Publication date: August 4, 2011
    Applicant: BASF SE
    Inventors: Simon Kniesel, Rudolf Pfaendner
  • Publication number: 20110028633
    Abstract: The instant invention discloses a composition, preferably a nanocomposite material, comprising (a) a synthetic polymer, (b) a filler such as for example a natural or synthetic phyllosilicate or a mixture of such phyllosilicates, preferably in nanoparticles, and (c) a dispersing agent prepared by controlled free radical polymerization (CFRP).
    Type: Application
    Filed: October 12, 2010
    Publication date: February 3, 2011
    Inventors: Graeme Moad, George Philip Simon, Katherine Maree Dean, Guoxin Li, Roshan Tyrrel Anton Mayadunne, Hendrik Wermter, Rudolf Pfaendner
  • Publication number: 20100317786
    Abstract: The instant invention discloses a process for the preparation a polyolefin nanocomposite which comprises melt mixing a mixture of a polyolefin, a filler and a non-ionic surfactant.
    Type: Application
    Filed: August 20, 2010
    Publication date: December 16, 2010
    Inventors: GRAEME MOAD, George Philip Simon, Katherine Maree Dean, Guoxin Li, Roshan Tyrrel Anton Mayadunne, Rudolf Pfaendner, Hendrik Wermter, Armin Schneider
  • Patent number: 7837899
    Abstract: The instant invention discloses a composition, preferably a nanocomposite material, comprising (a) a synthetic polymer, (b) a filler selected from a natural or synthetic phyllosilicate or a mixture of such phyllosilicates, preferably in nanoparticles, and (c) a dispersing agent prepared by controlled free radical polymerization (CFRP).
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: November 23, 2010
    Assignee: Polymers Australia Pty. Ltd.
    Inventors: Graeme Moad, George Philip Simon, Katherine Maree Dean, Guoxin Li, Roshan Tyrrel Anton Mayadunne, Hendrik Wermter, Rudolf Pfaendner