Patents by Inventor Michael Klemens Mueller

Michael Klemens Mueller 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: 20220356152
    Abstract: The invention relates to a process for purifying crude 4,4?-dichlorodiphenyl sulfone comprising: (a) dissolving the crude 4,4?-dichlorodiphenyl sulfone which may contain water in an organic solvent in which 4,4?-dichlorodiphenyl sulfone has a solubility of 0.5 to 20% at 20° C. and optionally adding water to obtain a solution which comprises 4,4?-dichlorodiphenyl sulfone, the organic solvent and 1 to 30 wt % water based on the amount of 4,4?-dichlorodiphenyl sulfone and water; (b) cooling the solution to a temperature below the saturation point of 4,4?-dichlorodiphenyl sulfone to obtain a suspension comprising crystallized 4,4?-dichlorodiphenyl sulfone; (c) carrying out a solid-liquid separation to obtain residual moisture containing 4,4?-dichlorodiphenyl sulfone and a mother liquor; (d) washing the residual moisture containing 4,4?-dichlorodiphenyl sulfone with an organic solvent in which 4,4?-dichlorodiphenyl sulfone has a solubility of 0.5 to 20% at 20° C.
    Type: Application
    Filed: August 20, 2020
    Publication date: November 10, 2022
    Inventors: Stefan BLEI, Jessica Nadine HAMANN, Lukas Karl METZGER, Christian SCHUETZ, Jun GAO, Frauke THRUN, Andreas MELZER, Michael Klemens MUELLER
  • Patent number: 11485703
    Abstract: The present invention is directed towards a process for manufacturing a complexing agent, said process comprising the steps of (a) Providing a nitrile according to general formula (I a) or (I b) With M being selected from alkali metal and hydrogen and combinations thereof, (b) Saponification with a total alkali amount of 2.5 to 2.9 mol of alkali metal hydroxide per mole of nitrile according to general formula (I a) or (I b), respectively, and a pH value in the range of from 9.5 to 11.5 at the end of step (b), (c) Adding an amount of alkali metal hydroxide so that the total alkali content is 2.9 to 3.15 moles per mole nitrile according to general formula (I a) or (I b), respectively, and (d) Allowing further conversion.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: November 1, 2022
    Assignee: BASF SE
    Inventors: Thomas Schmidt, Armin Stamm, Marta Reinoso Garcia, Verena Mormul, Michael Klemens Mueller, Frank Jaekel, Jeremy T Manning
  • Publication number: 20220154112
    Abstract: Process making a powder or granule containing (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and of glutamic acid diacetate (GLDA) and of iminodisuccinic acid (IDS), (B) at least one alkali metal silicate, and (C) at least one (co)polymer containing carboxylic acid group, partially neutralized with alkali, in a weight ratio of (A):[(B)+(C)] of from 20:1 up to 100:1, wherein said powder or granule contains at least 75% by weight of chelating agent (A), said process comprising the steps of (a) mixing the at least one chelating agent (A) and the at least one alkali metal silicate (B) and the at least one (co)polymer (C) in the presence of water, (b) removing most of said water by spray-drying or spray granulation using a gas with an inlet temperature of at least 125° C.
    Type: Application
    Filed: March 20, 2020
    Publication date: May 19, 2022
    Inventors: Frank JAEKEL, Michael Klemens MUELLER, Astrid SCHMIDT
  • Publication number: 20210317392
    Abstract: Process for making a powder or granule containing (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and of glutamic acid diacetate (GLDA) and of iminodisuccinic acid (IDS), (B) at least one alkali metal salt of a C10-C20 fatty acid, in a weight ratio of (A):(B) of from 40:1 up to 1,000:1, wherein said powder or granule contains at least 75% by weight of chelating agent (A), said process comprising the steps of (c) mixing the at least one chelating agent (A) and the at least one alkali metal salt of fatty acid (B) in the presence of water, (d) removing most of said water by spray-drying or by spray granulation using a gas with an inlet temperature of at least 125° C.
    Type: Application
    Filed: September 16, 2019
    Publication date: October 14, 2021
    Inventors: Frank JAEKEL, Astrid SCHMIDT, Michael Klemens MUELLER
  • Publication number: 20210206712
    Abstract: A process for making solid methylglycine diacetate (MGDA) alkali metal salt (a) includes: (A) providing a 40 to 60% by weight aqueous solution of the MGDA salt having a temperature in the range of from 50 to 90° C., (B) adding solid salt (a), (C) heating the resultant slurry until the salt (a) added in step (B) has dissolved at least partially, (D)allowing salt (a) to crystallize, and (E) removing crystalline salt (a) from the mother liquor.
    Type: Application
    Filed: May 21, 2019
    Publication date: July 8, 2021
    Inventors: Frank Jaekel, Michael Klemens Mueller
  • Publication number: 20210179978
    Abstract: Process for manufacturing granules or powders comprising the steps of (a) providing an aqueous solution or slurry of (A) at least one chelating agent according to general formula (I a) [CH3—CH(COO)—N(CH2—COO)2]M3-XHX (I a) wherein M is selected from alkali metal cations and ammonium, same or different, and x is in the range of from 0.01 to 1.0 or (I b) [OOC—CH2CH2—CH(COO)—N(CH2—COO)2]M4-XHX (I b) wherein M is as defined above, and x in formula (I b) is in the range of from 0.01 to 2.0, and (B) at least one polymer selected from (B1) polyaspartates with an average molecular weight Mw in the range of from 1,000 to 20,000 g/mole, and (B2) copolymers comprising, in copolymerized form, (?) at least one ester of an ethylenically unsaturated mono- or dicarboxylic acid, and (?) at least one ethylenically unsaturated N-containing monomer, and (b) spray drying or granulating said solution or slurry.
    Type: Application
    Filed: April 25, 2019
    Publication date: June 17, 2021
    Applicant: BASF SE
    Inventors: Marta REINOSO GARCIA, Juergen DETERING, Carsten SUELING, Kati SCHMDT, Michael Klemens MUELLER, Gazi TUERKOGLU, Thomas SCHMIDT
  • Patent number: 11028350
    Abstract: Process for making a powder or granule containing at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and glutamic acid diacetate (GLDA) and iminodisuccinic acid (IDS), said process comprising the steps of (a) introducing an aqueous solution or aqueous slurry of the respective chelating agent (A) into a spray-dryer or spray-granulator, and removing most of said water by spray-drying or spray granulation using a gas with an inlet temperature of 125 to 250° C.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: June 8, 2021
    Assignee: BASF SE
    Inventors: Michael Klemens Mueller, Armin Stamm, Frank Jaekel, Carsten Sueling
  • Patent number: 11008256
    Abstract: The invention relates to a process for preparing silica-coated particles of an inorganic expanding agent, the silica-coated particles and their use. The silica-coated particles show a delayed release of the expanding agent particularly in alkaline medium and at elevated temperatures. They are therefore useful in the oil and construction industry.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: May 18, 2021
    Assignee: BASF SE
    Inventors: Radoslaw Kierat, Michael Klemens Mueller, Andreas Kempter, Oscar Lafuente Cerda, Kai Bergner
  • Patent number: 10975334
    Abstract: Process for manufacturing granules of at least one alkali metal salt of aminopolycarboxylic acid (A), comprising the steps of (a) providing an aqueous slurry of alkali metal salt of aminopolycarboxylic acid (A), (b) maintaining said aqueous slurry at a temperature in the range of from 50 to 90° C. over a period of time in the range of from 2 to 180 hours, (c) spray granulating said slurry with a gas inlet temperature of at least 150° C.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: April 13, 2021
    Assignee: BASF SE
    Inventors: Frank Jaekel, Michael Klemens Mueller
  • Publication number: 20210094902
    Abstract: The present invention is directed towards a process for manufacturing a complexing agent, said process comprising the steps of (a) Providing a nitrile according to general formula (I a) or (I b) (formula I a, I b) With M being selected from alkali metal and hydrogen and combinations thereof, (b) Saponification with a total alkali amount of 2.5 to 2.9 mol of alkali metal hydroxide per mole of nitrile according to general formula (I a) or (I b), respectively, and a pH value in the range of from 9.5 to 11.5 at the end of step (b), (c) Adding an amount of alkali metal hydroxide so that the total alkali content is 2.9 to 3.1 moles per mole nitrile according to general formula (I a) or (I b), respectively, and (d) Allowing further conversion.
    Type: Application
    Filed: June 19, 2018
    Publication date: April 1, 2021
    Inventors: Thomas SCHMIDT, Armin STAMM, Marta REINOSO GARCIA, Verena MORMUL, Michael Klemens MUELLER, Frank JAEKEL, Jeremy T. MANNING
  • Patent number: 10912835
    Abstract: Pharmaceutical coatings obtained from coating compositions based on film-forming copolymers of N,N-diethylaminoethyl methacrylate (DEAEMA) and methyl methacrylate (MMA) comprising a weight ratio of DEAEMA:MMA in the range of 35:65 to 55:45, where the copolymers are present partially neutralized with C3-C10-dicarboxylic acids.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: February 9, 2021
    Assignee: BASF SE
    Inventors: Karl Kolter, Silke Gebert, Michael Klemens Müller, Maximilian Angel
  • Patent number: 10865362
    Abstract: Process for manufacturing granules of salts of at least two aminopolycarboxylic acids (A), com-prising the steps of (a) providing an aqueous solution of (A1) at least one alkali metal salt of a mixture of L- and D-enantiomers of methyl glycine diacetic acid (MGDA), said mixture containing predominantly the respective L-isomer with an enantiomeric excess (ee) in the range of from 10 to 95%, (A2) at least one alkali metal salt of L- and D-enantiomers of glutamic acid diacetic acid (GLDA) or of enantiomerically pure L-GLDA, the weight ratio of (A1) and (A2) being in the range of from 1:9 to 9:1, (b) spray granulating said solution with a gas inlet temperature of at least 125° C. Additionally, the present invention relates to granules and to their use.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: December 15, 2020
    Assignee: BASF SE
    Inventors: Marta Reinoso Garcia, Michael Klemens Mueller, Carsten Sueling, Verena Mormul
  • Publication number: 20200299202
    Abstract: Coated inorganic expanding agent particles comprise a core of an inorganic expanding agent and a sol/gel-formed coating comprising a mixed oxide of two or more metals and/or metalloids, in particular a mixed oxide of silicon and at least one metal and/or metalloid selected from aluminum, boron, titanium, zirconium and zinc. The coated inorganic expanding agent particles are added to cementitious systems to avoid shrinkage during hardening. The coating is effective to delay the expanding effect.
    Type: Application
    Filed: September 25, 2018
    Publication date: September 24, 2020
    Applicant: BASF SE
    Inventors: Sung Yeun CHOI, Kai BERGNER, Radoslaw KIERAT, Michael Klemens MUELLER
  • Publication number: 20200248107
    Abstract: The present invention is directed towards a process for making a powder or granule containing (A) at least one chelating agent selected from methyl glycine diacetic acid (MGDA) and glutamic acid diacetate (GLDA) and iminodisuccinic acid (IDS) and their respective alkali metal salts, (B) at least one homo- or copolymer of (meth)acrylic acid, partially or fully neutralized with alkali, said process comprising the steps of (a) mixing the at least one chelating agent (A) and the at least one homo- or copolymer (B) in the presence of water, (b) removing most of said water by spray-drying or spray granulation using a gas with an inlet temperature of at least 125° C.
    Type: Application
    Filed: April 24, 2020
    Publication date: August 6, 2020
    Applicant: BASF SE
    Inventors: Markus HARTMANN, Marta REINOSO GARCIA, Michael Klemens MUELLER, Roland BOEHN, Markus Christian BIEL
  • Publication number: 20200181537
    Abstract: Process for manufacturing granules of salts of at least two aminopolycarboxylic acids (A), com-prising the steps of (a) providing an aqueous solution of (A1) at least one alkali metal salt of a mixture of L- and D-enantiomers of methyl glycine diacetic acid (MGDA), said mixture containing predominantly the respective L-isomer with an enantiomeric excess (ee) in the range of from 10 to 95%, (A2) at least one alkali metal salt of L- and D-enantiomers of glutamic acid diacetic acid (GLDA) or of enantiomerically pure L-GLDA, the weight ratio of (A1) and (A2) being in the range of from 1:9 to 9:1, (b) spray granulating said solution with a gas inlet temperature of at least 125° C. Additionally, the present invention relates to granules and to their use.
    Type: Application
    Filed: July 5, 2017
    Publication date: June 11, 2020
    Applicant: BASF SE
    Inventors: Marta REINOSO GARCIA, Michael Klemens MUELLER, Carsten SUELING, Verena MORMUL
  • Patent number: 10668156
    Abstract: Described are solid dispersions of hydrophobic active ingredients and cationic copolymers of N,N-diethylaminoethyl methacrylate and methyl methacrylate in a weight ratio of the monomers of from 35:65 to 55:45. Also described are the preparation and use of such solid dispersions for pharmaceutical dosage forms.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: June 2, 2020
    Assignee: BASF SE
    Inventors: Karl Kolter, Maximilian Angel, Matthias Karl, Silke Gebert, Michael Klemens Mueller
  • Publication number: 20190119611
    Abstract: Process for making a powder or granule containing at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and glutamic acid diacetate (GLDA) and iminodisuccinic acid (IDS), said process comprising the steps of (a) introducing an aqueous solution or aqueous slurry of the respective chelating agent (A) into a spray-dryer or spray-granulator, and removing most of said water by spray-drying or spray granulation using a gas with an inlet temperature of 125 to 250° C.
    Type: Application
    Filed: June 1, 2017
    Publication date: April 25, 2019
    Applicant: BASF SE
    Inventors: Michael Klemens MUELLER, Armin STAMM, Frank JAEKEL, Carsten SUELING
  • Publication number: 20190119161
    Abstract: The invention relates to a process for preparing silica-coated particles of an inorganic expanding agent, the silica-coated particles and their use. The silica-coated particles show a delayed release of the expanding agent particularly in alkaline medium and at elevated temperatures. They are therefore useful in the oil and construction industry.
    Type: Application
    Filed: April 7, 2017
    Publication date: April 25, 2019
    Inventors: Radoslaw KIERAT, Michael Klemens MUELLER, Andreas KEMPTER, Oscar LAFUENTE CERDA, Kai BERGNER
  • Publication number: 20180355285
    Abstract: Process for manufacturing granules of at least one alkali metal salt of aminopolycarboxylic acid (A), comprising the steps of (a) providing an aqueous slurry of alkali metal salt of aminopolycarboxylic acid (A), (b) maintaining said aqueous slurry at a temperature in the range of from 50 to 90° C. over a period of time in the range of from 2 to 180 hours, (c) spray granulating said slurry with a gas inlet temperature of at least 150° C.
    Type: Application
    Filed: December 1, 2016
    Publication date: December 13, 2018
    Applicant: BASF SE
    Inventors: Frank JAEKEL, Michael Klemens MUELLER
  • Patent number: 9969849
    Abstract: The present invention relates to a process for drying particulate polymers, comprising the steps of: a) providing a particulate polymer comprising from 60 wt % to 90 wt % of at least one solvent based on the total weight of particulate polymer and solvent, b) mechanically predrying the particulate polymer to a content of the at least one solvent of from 20 wt % to 50 wt % based on the total weight of particulate polymer and solvent, wherein the mechanical predrying in step b) is carried out with a roller press, and c) end-drying the particulate polymer to a content of the at least one solvent of from 0 wt % to 15 wt % based on the total weight of particulate polymer and solvent, wherein the particulate polymer is a polymer comprising repeating units of formulae I, II and/or III The present invention further relates to a process for working up particulate polymers.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: May 15, 2018
    Assignee: BASF SE
    Inventors: Joerg Erbes, Gerhard Lange, Tobias Kortekamp, Bernhard Linner, Cecile Schneider, Angela Ulzhoefer, Robert Heinz, Michael Klemens Mueller