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).
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Patent number: 9586906Abstract: Method of lightening the color of mixtures comprising imidazolium salts or imidazoles, wherein the mixtures are treated with an oxidant.Type: GrantFiled: December 8, 2008Date of Patent: March 7, 2017Assignee: BASF SEInventors: Michael Siemer, Matthias Maase, Ingo Richter
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Patent number: 8519035Abstract: 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: GrantFiled: September 3, 2008Date of Patent: August 27, 2013Assignee: BASF SEInventors: Alexander Tishkov, Gunter Scherhag, Klemens Massonne, Matthias Maase, Calvin Emanuel, Larry D. Timberlake, Mark V. Hanson
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Publication number: 20120251810Abstract: 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: ApplicationFiled: July 21, 2010Publication date: October 4, 2012Applicant: BASF SEInventors: Hartmut Denecke, Alexander Tishkov, Norbert Gutfrucht, Heinz Herbst, Matthias Maase, Rainer Xalter, Christoph Fleckenstein
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Patent number: 8252943Abstract: 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: GrantFiled: March 3, 2005Date of Patent: August 28, 2012Assignee: BASF SEInventors: Laszlo Szarvas, Matthias Maase, Klemens Massonne
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Patent number: 8247517Abstract: 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: GrantFiled: June 9, 2008Date of Patent: August 21, 2012Assignee: BASF SEInventors: Lars Wittenbecher, Michael Henningsen, Georg Degen, Matthias Maase, Manfred Doering, Ulrich Arnold
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Patent number: 8202580Abstract: 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: GrantFiled: June 6, 2008Date of Patent: June 19, 2012Assignee: BASF SEInventors: Lars Wittenbecher, Georg Degen, Michael Henningsen, Matthias Maase, Manfred Doering, Ulrich Arnold
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Patent number: 8193297Abstract: 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: GrantFiled: June 6, 2008Date of Patent: June 5, 2012Assignee: BASF SEInventors: Lars Wittenbecher, Matthias Maase, Georg Degen, Michael Henningsen, Manfred Doering, Ulrich Arnold
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Patent number: 8163215Abstract: 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: GrantFiled: December 22, 2006Date of Patent: April 24, 2012Assignee: BASF AktiengesellschaftInventors: Veit Stegmann, Klemens Massonne, Matthias Maase, Eric Uerdingen, Michael Lutz, Frank Hermanutz, Frank Gaehr
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Patent number: 8163951Abstract: 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: GrantFiled: May 27, 2005Date of Patent: April 24, 2012Assignee: BASF AktiengesellschaftInventors: Laszlo Szarvas, Klemens Massonne, Matthias Maase, Alfred Oftring
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Patent number: 8053546Abstract: 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: GrantFiled: June 6, 2008Date of Patent: November 8, 2011Assignee: BASF SEInventors: Georg Degen, Matthias Maase, Lars Wittenbecher, Manfred Döring, Ulrich Arnold
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Publication number: 20110263764Abstract: 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: ApplicationFiled: September 3, 2008Publication date: October 27, 2011Applicant: BASF SEInventors: Alexander Tishkov, Gunter Scherhag, Klemens Massonne, Matthias Maase, Calvin Emanuel, Larry D. Timberlake, Mark V. Hanson
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Publication number: 20110065926Abstract: 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: ApplicationFiled: November 22, 2010Publication date: March 17, 2011Applicant: BASF SEInventors: Matthias Maase, Klemens Massonne, Laszlo Szarvas
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Patent number: 7858802Abstract: 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: GrantFiled: January 26, 2005Date of Patent: December 28, 2010Assignee: BASF SEInventors: Matthias Maase, Klemens Massonne, Laszlo Szarvas
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Publication number: 20100297532Abstract: 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: ApplicationFiled: January 8, 2009Publication date: November 25, 2010Applicant: BASF SEInventors: York Alexander Beste, Veit Stegmann, Matthias Maase
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Publication number: 20100283003Abstract: Method of lightening the color of mixtures comprising imidazolium salts or imidazoles, wherein the mixtures are treated with an oxidant.Type: ApplicationFiled: December 8, 2008Publication date: November 11, 2010Applicant: BASF SEInventors: Michael Siemer, Matthias Maase, Ingo Richter
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Publication number: 20100267596Abstract: 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: ApplicationFiled: December 12, 2008Publication date: October 21, 2010Applicant: BASE SEInventors: Georg Degen, Veit Stegmann, Klaus Ebel, Klemens Massonne, Laszlo Szarvas, Uwe Vagt, Matthias Maase
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Publication number: 20100209709Abstract: 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: ApplicationFiled: September 9, 2008Publication date: August 19, 2010Applicant: BASF SEInventors: Markus Braun, Rainer Dyllick-Brenzinger, Matthias Maase, Frank Stein, Megan Turner, Eric Uerdingen
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Publication number: 20100209708Abstract: 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: ApplicationFiled: September 9, 2008Publication date: August 19, 2010Applicant: Basf SEInventors: Markus Braun, Rainer Dyllick-Brenzinger, Matthias Maase, Frank Stein, Megan Turner, Eric Uerdingen
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Patent number: 7776109Abstract: 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: GrantFiled: March 30, 2004Date of Patent: August 17, 2010Assignee: BASF AktiengesellschaftInventors: Gerhard Bertlein, Karl Heinz Schall, Matthias Maase, Joerg Heilek, Dieter Baumann, Hermann Ascherl
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Patent number: 7767852Abstract: 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: GrantFiled: January 21, 2003Date of Patent: August 3, 2010Assignee: BASF AktiengesellschaftInventors: 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