Patents by Inventor Arnold Schneller

Arnold Schneller 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: 10676569
    Abstract: The invention relates to a process for continuously preparing polyamide oligomers. This comprises continuous conveying of an aqueous solution of polyamide-forming monomers from a reservoir vessel into an oligomerization reactor, heating of the aqueous solution beyond a dissolution or storage temperature, the residence time of the monomer solution in the oligomerization reactor being limited and the pressure or the partial vapor pressure of the water being adjusted such that a conversion of monomers to polyamide oligomers does not exceed a maximum value and/or the polyamide oligomers formed do not phase-separate or spontaneously crystallize in solid form, and continuous discharge of the polyamide oligomers from the oligomerization reactor. A polyamide oligomer preparable by this process can be provided continuously in a mixture with water in a process for preparing a semicrystalline or amorphous, thermoplastically processible polyamide and then postcondensed to give a polyamide.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: June 9, 2020
    Assignee: BASF SE
    Inventors: Joachim Clauss, Stefan Schwiegk, Gad Kory, Christian Schmidt, Axel Wilms, Florian Richter, Ning Zhu, Silke Biedasek, Isa Alexandra Queiroz Da Fonseca, Heinrich Sack, Arnold Schneller, Achim Stammer, Volker Rauschenberger
  • Publication number: 20200048418
    Abstract: The present invention relates to a process for preparing a polyarylenesulfone/polyester block copolymer (P) and to the polyarylenesulfone/polyester block copolymer (P) as such.
    Type: Application
    Filed: March 27, 2018
    Publication date: February 13, 2020
    Inventors: Axel Wilms, Arnold Schneller, Joseph M. Dennis, Nicholas G. Moon, Timothy E. Long
  • Patent number: 10351671
    Abstract: The present invention relates to a method for producing semi-aromatic copolyamides with a high diamine excess in the reaction batch.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: July 16, 2019
    Assignee: BASF SE
    Inventors: Axel Wilms, Christian Schmidt, Florian Richter, Joachim Clauss, Gad Kory, Stefan Schwiegk, Arnold Schneller
  • Patent number: 9994678
    Abstract: The present invention relates to a process for the preparation of an aliphatic or partially aromatic polyamide, in which an aqueous composition of the monomers is subjected to an oligomerization at elevated temperature and increased pressure, the reaction mixture is optionally subjected to a first decompression to reduce the water content, the (optionally decompressed) reaction mixture is heated within a short time to a temperature above the melting temperature of the polyamides and the heated reaction mixture is subjected to a (further) decompression to reduce the water content and to an after-polymerization.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: June 12, 2018
    Assignee: BASF SE
    Inventors: Christian Schmidt, Joachim Clauss, Axel Wilms, Volker Rauschenberger, Gad Kory, Stefan Schwiegk, Arnold Schneller, Achim Stammer, Frank Niedermaier, Bernd Hackel
  • Patent number: 9701790
    Abstract: The present invention relates to a process for preparing an aliphatic or semiaromatic polyamide, in which a polyamide prepolymer is subjected to a solid state polymerization.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: July 11, 2017
    Assignee: BASF SE
    Inventors: Christian Schmidt, Florian Richter, Joachim Clauss, Axel Wilms, Gad Kory, Arnold Schneller, Achim Stammer, Volker Rauschenberger, Stefan Schwiegk
  • Publication number: 20160145390
    Abstract: The present invention relates to a process for the preparation of an aliphatic or partially aromatic polyamide, in which an aqueous composition of the monomers is subjected to an oligomerization at elevated temperature and increased pressure, the reaction mixture is optionally subjected to a first decompression to reduce the water content, the (optionally decompressed) reaction mixture is heated within a short time to a temperature above the melting temperature of the polyamides and the heated reaction mixture is subjected to a (further) decompression to reduce the water content and to an after-polymerization.
    Type: Application
    Filed: June 11, 2014
    Publication date: May 26, 2016
    Inventors: Christian Schmidt, Joachim Clauss, Axel Wilms, Volker Rauschenberger, Gad Kory, Stefan Schwiegk, Arnold Schneller, Achim Stammer, Frank Niedermaier, Bernd Hackel
  • Publication number: 20160145389
    Abstract: The present invention relates to a method for producing semi-aromatic copolyamides with a high diamine excess in the reaction batch.
    Type: Application
    Filed: June 11, 2014
    Publication date: May 26, 2016
    Applicant: BASF SE
    Inventors: Axel Wilms, Christian Schmidt, Florian Richter, Joachim Clauss, Gad Kory, Stefan Schwiegk, Arnold Schneller
  • Publication number: 20160137783
    Abstract: The present invention relates to a process for preparing an aliphatic or semiaromatic polyamide, in which a polyamide prepolymer is subjected to a solid state polymerization.
    Type: Application
    Filed: June 11, 2014
    Publication date: May 19, 2016
    Applicant: BASF SE
    Inventors: Christian Schmidt, Florian Richter, Joachim Clauss, Axel Wilms, Gad Kory, Arnold Schneller, Achim Stammer, Volker Rauschenberger, Stefan Schwiegk
  • Publication number: 20160130397
    Abstract: The invention relates to a process for continuously preparing polyamide oligomers. This comprises continuous conveying of an aqueous solution of polyamide-forming monomers from a reservoir vessel into an oligomerization reactor, heating of the aqueous solution beyond a dissolution or storage temperature, the residence time of the monomer solution in the oligomerization reactor being limited and the pressure or the partial vapor pressure of the water being adjusted such that a conversion of monomers to polyamide oligomers does not exceed a maximum value and/or the polyamide oligomers formed do not phase-separate or spontaneously crystallize in solid form, and continuous discharge of the polyamide oligomers from the oligomerization reactor. A polyamide oligomer preparable by this process can be provided continuously in a mixture with water in a process for preparing a semicrystalline or amorphous, thermoplastically processible polyamide and then postcondensed to give a polyamide.
    Type: Application
    Filed: June 11, 2014
    Publication date: May 12, 2016
    Inventors: Joachim Clauss, Stefan Schwiegk, Gad Kory, Christian Schmidt, Axel Wilms, Florian Richter, Ning Zhu, Sike Biedasek, Isa Alexandra Queiroz Da Fonseca, Heinrich Sack, Arnold Schneller, Achim Stammer, Volker Rauschenberger
  • Patent number: 8741991
    Abstract: The present relates to nylon-5,10 molding compositions comprising A) from 40 to 90% by weight of a nylon-5,10, B) from 10 to 60% by weight of fiber-containing or mineral-containing fillers, C) from 0 to 20% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%. The present invention moreover relates to a process for the preparation of these molding compositions, to the use of these molding compositions for the production of moldings of any type, and to the resultant moldings, preferably motor vehicle bodywork parts or electronics components of any type, foils, and fibers.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: June 3, 2014
    Assignee: BASF SE
    Inventors: Motonori Yamamoto, Weol Kyu Jeong, Arnold Schneller, Matthias Scheibitz, Freddy Gruber, Jürgen Deininger
  • Patent number: 8313935
    Abstract: The invention relates to a method for isolating polyhydroxyalkanoates from production cells which comprises i) disintegrating the production cells, subsequently ii) separating off the cell fragments from the polyhydroxyalkanoate grains by means of a continuous jet separator; iii) the concentrated polyhydroxyalkanoate grains are washed with an aqueous alkali solution and then iv) with an aqueous acid.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: November 20, 2012
    Assignee: BASF SE
    Inventors: Rajan Hollmann, Bryan Cooper, Peter Preishuber-Pfluegl, Arnold Schneller
  • Patent number: 7943726
    Abstract: A process and an apparatus are described for preparation of oxymethylene polymers. This process encompasses polymerization, in a homogeneous phase, of a monomer which forms oxymethylene groups, as far as 90% of maximum conversion in the presence of an acetal of formaldehyde and of an initiator for cationic polymerization, followed by deactivation of the reaction mixture. The resultant oxymethylene polymers have alkyl ether end groups and are extremely stable.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: May 17, 2011
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Joachim Clauss, Michael Hoffmockel, Jürgen Lingnau, Arnold Schneller
  • Publication number: 20110112274
    Abstract: The invention relates to a method for isolating polyhydroxyalkanoates from production cells which comprises i) disintegrating the production cells, subsequently ii) separating off the cell fragments from the polyhydroxyalkanoate grains by means of a continuous jet separator; iii) the concentrated polyhydroxyalkanoate grains are washed with an aqueous alkali solution and then iv) with an aqueous acid.
    Type: Application
    Filed: June 30, 2009
    Publication date: May 12, 2011
    Applicant: BASF SE
    Inventors: Rajan Hollmann, Bryan Cooper, Peter Preishuber-Pfluegl, Arnold Schneller
  • Publication number: 20110098372
    Abstract: Thermoplastic molding compositions comprising A) from 10 to 99.9% by weight of at least one thermoplastic polyamide B) from 0.1 to 50% by weight of a copolymer obtainable via (i) preparation of at least one reaction mixture (a) via free-radical copolymerization of one or more monoethylenically unsaturated monomeric compound(s) (monomer(s) B1) with one or more compound(s) selected from the group of itaconic acid, mesaconic acid, fumaric acid, maleic acid, aconitic acid, glutaconic acid, and salts, esters, and anhydrides thereof (monomer(s) B2), and (ii) if appropriate, reaction of at least one of the copolymers obtained in step (i) with one or more crosslinking agent(s) (b), and C) from 0 to 60% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%.
    Type: Application
    Filed: June 9, 2009
    Publication date: April 28, 2011
    Applicant: BASF SE
    Inventors: Francesca Aulenta, Cecile Gibon, Arnold Schneller, Martin Weber
  • Publication number: 20110015285
    Abstract: The invention relates to a process for the production of foamable copolymers, to foamable copolymers and to foamable polymer structures based on itaconic acid, mesaconic acid, fumaric acid, maleic acid, aconitic acid, and glutaconic acid.
    Type: Application
    Filed: January 21, 2009
    Publication date: January 20, 2011
    Applicant: BASF SE
    Inventors: Francesca Aulenta, Markus Braun, Arnold Schneller, Rainer Dyllick-Brenzinger
  • Publication number: 20100331461
    Abstract: The present relates to nylon-5,10 molding compositions comprising A) from 40 to 90% by weight of a nylon-5,10, B) from 10 to 60% by weight of fiber-containing or mineral-containing fillers, C) from 0 to 20% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%. The present invention moreover relates to a process for the preparation of these molding compositions, to the use of these molding compositions for the production of moldings of any type, and to the resultant moldings, preferably motor vehicle bodywork parts or electronics components of any type, foils, and fibers.
    Type: Application
    Filed: January 29, 2009
    Publication date: December 30, 2010
    Applicant: BASF SE
    Inventors: Motonori Yamamoto, Weol Kyu Jeong, Arnold Schneller, Matthias Scheibitz, Freddy Gruber, Jürgen Deininger
  • Patent number: 7812110
    Abstract: A process is described for preparation of oxymethylene homo- and copolymers. This encompasses heterogeneous polymerization of a monomer which forms oxymethylene groups in the presence of an acetal of formaldehyde and of an initiator for cationic polymerization, followed by the deactivation of the polymer in a homogeneous phase via treatment with a basic aprotic solvent or with an aprotic solvent which comprises a base. Oxymethylene homopolymers with very high stability are also described.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: October 12, 2010
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Joachim Clauss, Michael Hoffmockel, Jürgen Lingnau, Arnold Schneller
  • Publication number: 20100240923
    Abstract: A process for preparing (meth)acrylic esters (F) of hydroxy-functional aromas (A), in which at least one hydroxy-functional aroma (A) in the presence of at least one enzyme (E) is esterified with (meth)acrylic acid (S), or transesterified with at least one (meth)acrylic ester (D), the reaction in the case of the transesterification being effected in the absence of solvents.
    Type: Application
    Filed: November 29, 2007
    Publication date: September 23, 2010
    Applicant: BASF SE
    Inventors: Dietmar Haering, Gabi Winter, Arnold Schneller, Francesca Aulenta
  • Publication number: 20100233768
    Abstract: The invention relates to a method for isolating polyhydroxyalkanoates from production cells which comprises i) disintegrating the production cells and subsequently ii) separating off the cell fragments from the polyhydroxyalkanoate grains by means of a continuous jet separator.
    Type: Application
    Filed: May 16, 2007
    Publication date: September 16, 2010
    Applicant: BASF SE
    Inventors: Bryan Cooper, Arnold Schneller, Peter Preishuber-Pflügl
  • Patent number: 7771646
    Abstract: Laser-markable molding compositions, molding produced therewith and method of marking the same, wherein the molding compositions comprise: (a) at least one semicrystalline thermoplastic; and (b) at least one particulate additive selected from the group consisting of (i) light-sensitive salt compounds, (ii) inorganic oxides having an average particle diameter of less than 250 nm, and combinations thereof; wherein the light-sensitive salt compounds comprise compounds having two or more captions, wherein at least one of the two or more captions is selected from the group consisting of Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Ag, Sn, Sb, La, Pr, Ta, W, and Ce; and wherein at least another of the two or more captions is selected from the group consisting of elements of periods 3-6 of main groups II and III, elements of periods 5-6 of main group IV, elements of periods 4-5 of transition groups III-VIII, and the lanthanoids.
    Type: Grant
    Filed: October 15, 2005
    Date of Patent: August 10, 2010
    Assignee: Ticona GmbH
    Inventors: Joachim Clauss, Kurt Witan, Arnold Schneller, Klaus Kurz