Patents by Inventor Matthias Maase

Matthias Maase 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: 9586906
    Abstract: Method of lightening the color of mixtures comprising imidazolium salts or imidazoles, wherein the mixtures are treated with an oxidant.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: March 7, 2017
    Assignee: BASF SE
    Inventors: Michael Siemer, Matthias Maase, Ingo Richter
  • Patent number: 8519035
    Abstract: The present invention is related to the use of specific cyclic and/or polymeric aryl-phosphines as flame retardants and to a method for reducing the flammability of organic material by incorporating into the material these specific cyclic and/or polymeric phosphines. Moreover, the invention is related to a polymeric composition containing a polymeric material and at least one of the specific cyclic and/or polymeric phosphines in an amount of from 1 to 15% by weight, based on the weight of the polymeric material. The invention also relates to a composition comprising at least one of the specific cyclic and/or polymeric phosphines and at least one polymerizable monomer.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: August 27, 2013
    Assignee: BASF SE
    Inventors: Alexander Tishkov, Gunter Scherhag, Klemens Massonne, Matthias Maase, Calvin Emanuel, Larry D. Timberlake, Mark V. Hanson
  • Publication number: 20120251810
    Abstract: The present invention is related to the use of specific derivatives of diphosphines as flame retardants in aromatic and heteroaromatic epoxy resins and to a method for reducing the flammability of organic material comprising aromatic and/or heteroaromatic epoxy resins in which the specific derivates of diphosphines are incorporated. Moreover, the invention is related to an aromatic and/or heteroaromatic epoxy resin composition containing aromatic and heteroaromatic epoxy resin as such or in processed form and incorporated in the aromatic and/or heteroaromatic epoxy resin at least one of the derivatives of diphosphines in an amount of from 1 to 35% by weight, based on the weight of the aromatic and/or heteroaromatic epoxy resin.
    Type: Application
    Filed: July 21, 2010
    Publication date: October 4, 2012
    Applicant: BASF SE
    Inventors: Hartmut Denecke, Alexander Tishkov, Norbert Gutfrucht, Heinz Herbst, Matthias Maase, Rainer Xalter, Christoph Fleckenstein
  • Patent number: 8252943
    Abstract: Process for preparing ionic compounds comprising cations containing quaternary sp2-hybridized nitrogen atoms, which comprises reacting compounds containing a double-bonded nitrogen atom with a dialkyl sulfate with participation of both alkyl groups of the dialkyl sulfate and, if appropriate, subjecting the resulting ionic compound containing sulfate anions to an anion exchange.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: August 28, 2012
    Assignee: BASF SE
    Inventors: Laszlo Szarvas, Matthias Maase, Klemens Massonne
  • Patent number: 8247517
    Abstract: The use of 1,3-substituted imidazolium salts of the formula I in which R1 and R3 independently of one another are an organic radical having 1 to 20 C atoms, R2, R4, and R5 independently of one another are an H atom or an organic radical having 1 to 20 C atoms, it also being possible for R4 and R5 together to form an aliphatic or aromatic ring, and X is a dicyanamide anion as latent catalysts for curing compositions comprising epoxy compounds.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: August 21, 2012
    Assignee: BASF SE
    Inventors: Lars Wittenbecher, Michael Henningsen, Georg Degen, Matthias Maase, Manfred Doering, Ulrich Arnold
  • Patent number: 8202580
    Abstract: 1,3-substituted imidazolium salts of the formula I are used as latent catalysts for curing compostions comprising epoxy compounds: in which: R1 and R3 independently of one another are an organic radical having 1 to 20 C atoms; R2, R4, and R5 independently of one another are an H atom or an organic radical having 1 to 20 C atoms, it also being possible for R4 and R5 together to form an aliphatic or aromatic ring; X is the anion of a phosphorus oxyacid, and n is 1, 2 or 3.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: June 19, 2012
    Assignee: BASF SE
    Inventors: Lars Wittenbecher, Georg Degen, Michael Henningsen, Matthias Maase, Manfred Doering, Ulrich Arnold
  • Patent number: 8193297
    Abstract: The use of 1,3-substituted imidazolium salts of the formula I in which R1 and R3 independently of one another are an organic radical having 1 to 20 C atoms, R2, R4, and R5 independently of one another are an H atom or an organic radical having 1 to 20 C atoms, it also being possible for R4 and R5 together to form an aliphatic or aromatic ring, and X is a thiocyanate anion as latent catalysts for curing compositions comprising epoxy compounds.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: June 5, 2012
    Assignee: BASF SE
    Inventors: Lars Wittenbecher, Matthias Maase, Georg Degen, Michael Henningsen, Manfred Doering, Ulrich Arnold
  • Patent number: 8163215
    Abstract: A solution system for biopolymers in the form of carbohydrates based on a molten ionic liquid, additives optionally being contained in the solution system, is described. This solution system contains a protic solvent or a mixture of several protic solvents, and in the case where the protic solvent is solely water, this is present in the solution system in an amount of more than about 5 wt. %. Carbohydrates can be incorporated into the solution system, in particular in the form of starch, cellulose and derivatives thereof, and it can then be used for regeneration of the carbohydrates contained therein. A particularly advantageous process for the preparation of the solution system containing the carbohydrates and for the preparation of regenerated carbohydrates, in particular in the form of regenerated cellulose fibers, is moreover described. The invention accordingly also provides such spun fibers as are distinguished in that they are non-fibrillating.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: April 24, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Veit Stegmann, Klemens Massonne, Matthias Maase, Eric Uerdingen, Michael Lutz, Frank Hermanutz, Frank Gaehr
  • Patent number: 8163951
    Abstract: The present invention relates to a process for preparing quaternary ammonium compounds, which comprises reacting compounds comprising an sp3-hybridized nitrogen atom with a dialkyl sulfate or trialkyl phosphate and subjecting the resulting ammonium compound to an anion exchange.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: April 24, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Laszlo Szarvas, Klemens Massonne, Matthias Maase, Alfred Oftring
  • Patent number: 8053546
    Abstract: The use of 1,3-substituted imidazolium salts of the formula I in which R1 and R3 independently of one another are an organic radical having 1 to 20 C atoms, R2, R4, and R5 independently of one another are an H atom or an organic radical having 1 to 20 C atoms, it also being possible for R4 and R5 together to form an aliphatic or aromatic ring, X is an anion having a pKb of less than 13 (measured at 25° C., 1 bar in water or dimethyl sulfoxide), and n is 1, 2 or 3, with the exception as imidazolium salts of 1-ethyl-2,3-dimethylimidazolium acetate and 1-ethyl-2,3-dimethylimidazolium acetate-acetic acid complex, as latent catalysts for curing compositions comprising epoxy compounds.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: November 8, 2011
    Assignee: BASF SE
    Inventors: Georg Degen, Matthias Maase, Lars Wittenbecher, Manfred Döring, Ulrich Arnold
  • Publication number: 20110263764
    Abstract: The present invention is related to the use of specific cyclic and/or polymeric aryl-phosphines as flame retardants and to a method for reducing the flammability of organic material by incorporating into the material these specific cyclic and/or polymeric phosphines. Moreover, the invention is related to a polymeric composition containing a polymeric material and at least one of the specific cyclic and/or polymeric phosphines in an amount of from 1 to 15% by weight, based on the weight of the polymeric material. The invention also relates to a composition comprising at least one of the specific cyclic and/or polymeric phosphines and at least one polymerizable monomer.
    Type: Application
    Filed: September 3, 2008
    Publication date: October 27, 2011
    Applicant: BASF SE
    Inventors: Alexander Tishkov, Gunter Scherhag, Klemens Massonne, Matthias Maase, Calvin Emanuel, Larry D. Timberlake, Mark V. Hanson
  • Publication number: 20110065926
    Abstract: In the process for preparing ionic liquids, an ionic liquid is firstly reacted with an alkoxide or with barium hydroxide and is subsequently neutralized with an acid. The ionic liquid contains a phosphonium and/or ammonium cation and an anion selected from the group consisting of halides, arylsulfonates, alkylsulfonates, sulfate, hydroxysulfate, alkylsulfates, hydrogencarbonate, carbonate. triflate and carboxylates. In this process, virtually any anions can be introduced into the ionic liquids.
    Type: Application
    Filed: November 22, 2010
    Publication date: March 17, 2011
    Applicant: BASF SE
    Inventors: Matthias Maase, Klemens Massonne, Laszlo Szarvas
  • Patent number: 7858802
    Abstract: In the process for preparing ionic liquids, an ionic liquid is firstly reacted with an alkoxide or with barium hydroxide and is subsequently neutralized with an acid. The ionic liquid contains a phosphonium and/or ammonium cation and an anion selected from the group consisting of halides, arylsulfonates, alkylsulfonates, sulfate, hydroxysulfate, alkylsulfates, hydrogencarbonate, carbonate. triflate and carboxylates. In this process, virtually any anions can be introduced into the ionic liquids.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: December 28, 2010
    Assignee: BASF SE
    Inventors: Matthias Maase, Klemens Massonne, Laszlo Szarvas
  • Publication number: 20100297532
    Abstract: The present invention relates to a process for the work-up of acidic or basic ionic liquids (IL) of the general formula (I), [A]+(1/n)*[Y]???(I) where [A]+ is a quaternary ammonium cation and (1/n)*[Y]n? is one anion equivalent of an n-fold charged anion, which comprises adding a conjugate acid-base pair selected from among compounds of the formula (II), [A]+[X]???(II) where [A]+ has the meaning given for the ionic liquid and [X]? is a conjugate base to the ionic liquid (IL).
    Type: Application
    Filed: January 8, 2009
    Publication date: November 25, 2010
    Applicant: BASF SE
    Inventors: York Alexander Beste, Veit Stegmann, Matthias Maase
  • Publication number: 20100283003
    Abstract: Method of lightening the color of mixtures comprising imidazolium salts or imidazoles, wherein the mixtures are treated with an oxidant.
    Type: Application
    Filed: December 8, 2008
    Publication date: November 11, 2010
    Applicant: BASF SE
    Inventors: Michael Siemer, Matthias Maase, Ingo Richter
  • Publication number: 20100267596
    Abstract: The present invention relates to a method for improving the hydrolysis stability of an ionic liquid (IL), in which at least one tertiary amine or one quaternary ammonium compound different from the ionic liquid (IL) is added to an ionic liquid (IL).
    Type: Application
    Filed: December 12, 2008
    Publication date: October 21, 2010
    Applicant: BASE SE
    Inventors: Georg Degen, Veit Stegmann, Klaus Ebel, Klemens Massonne, Laszlo Szarvas, Uwe Vagt, Matthias Maase
  • Publication number: 20100209709
    Abstract: A binder-consolidated cellulose bead or lignocellulose bead (referred to as consolidated bead for short), obtainable by mixing of cellulose or lignocellulose beads with a binder and subsequent crosslinking of the binder.
    Type: Application
    Filed: September 9, 2008
    Publication date: August 19, 2010
    Applicant: BASF SE
    Inventors: Markus Braun, Rainer Dyllick-Brenzinger, Matthias Maase, Frank Stein, Megan Turner, Eric Uerdingen
  • Publication number: 20100209708
    Abstract: Crosslinked cellulose beads or lignocellulose beads (referred to as beads for short), wherein at least 50% by weight of the beads have a particle diameter greater than 800 ?m (21° C., 1 bar, determined by sieve analysis).
    Type: Application
    Filed: September 9, 2008
    Publication date: August 19, 2010
    Applicant: Basf SE
    Inventors: Markus Braun, Rainer Dyllick-Brenzinger, Matthias Maase, Frank Stein, Megan Turner, Eric Uerdingen
  • Patent number: 7776109
    Abstract: The present invention relates to a process for the preparation of solid acylphosphine oxides by converting an acylphosphine oxide which is in the form of a melt or in dispersed form into the solid state of aggregation with mechanical stress, shearing/internal agitation of the melt.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: August 17, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Bertlein, Karl Heinz Schall, Matthias Maase, Joerg Heilek, Dieter Baumann, Hermann Ascherl
  • Patent number: 7767852
    Abstract: Process for preparing aminodihalophosphines, diaminohalophosphines, triaminophosphines, phosphorous ester diamides, aminophosphines, diaminophosphines, phosphorous ester amide halides and aminophosphine halides with elimination of an acid in the presence of an auxiliary base, wherein the auxiliary base b) and the acid form a salt which is liquid at temperatures at which the desired product is not significantly decomposed during the process of separating off the liquid salt and c) the salt of the auxiliary base forms two immiscible liquid phases with the desired product or the solution of the desired product in a suitable solvent.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: August 3, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Volland, Verena Seitz, Matthias Maase, Miguel Flores, Rainer Papp, Klemens Massonne, Veit Stegmann, Klaus Halbritter, Ralf Noe, Michael Bartsch, Wolfgang Siegel, Michael Becker, Oliver Huttenloch