Patents by Inventor Hans-Peter Brack

Hans-Peter Brack 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: 10745332
    Abstract: A process for purifying a crude composition includes a monoterpene compound selected from the group consisting of monocyclic monoterpene alcohols, monocyclic monoterpene ketones, bicyclic epoxy monoterpenes and mixtures of two or more of the aforementioned compounds, such as preferably a monocyclic monoterpene alcohol. The process comprises performing a layer crystallization with a melt of the crude composition, and the melt of the crude composition subjected to the layer crystallization includes oxygen-containing solvent in a concentration of 20 ppm to 2% by weight. The oxygen-containing solvent is selected from the group consisting of water, C1-6-alcohols, C1-6-carboxylic acids, C1-6-ketones, C1-6-aldehydes, C1-12-ethers, C1-12-esters and mixtures of two or more of the aforementioned solvents.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: August 18, 2020
    Assignee: SULZER MANAGEMENT AG
    Inventors: Manfred Stepanski, Florian Lippuner, Hans-Peter Brack
  • Publication number: 20200071249
    Abstract: A process for purifying a crude composition includes a monoterpene compound selected from the group consisting of monocyclic monoterpene alcohols, monocyclic monoterpene ketones, bicyclic epoxy monoterpenes and mixtures of two or more of the aforementioned compounds, such as preferably a monocyclic monoterpene alcohol. The process comprises performing a layer crystallization with a melt of the crude composition, and the melt of the crude composition subjected to the layer crystallization includes oxygen-containing solvent in a concentration of 20 ppm to 2% by weight. The oxygen-containing solvent is selected from the group consisting of water, C1-6-alcohols, C1-6-carboxylic acids, C1-6-ketones, C1-6-aidehydes, C1-12-ethers, C1-12-esters and mixtures of two or more of the aforementioned solvents.
    Type: Application
    Filed: April 13, 2018
    Publication date: March 5, 2020
    Inventors: Manfred STEPANSKI, Florian LIPPUNER, Hans-Peter BRACK
  • Patent number: 10066054
    Abstract: A process of manufacturing a polyester from cyclic ester monomer comprises the steps of: a) providing a cyclic ester, b) polymerizing the cyclic ester in the presence of a catalyst and optionally an initiator in a reactor to form a reaction mixture comprising polyester and unreacted cyclic ester, wherein after the polymerization at least one polymerization inhibitor is added to the reaction mixture, wherein the polymerization inhibitor is selected from the group consisting of monoimines, diimines, mono alkyl phosphates according to the formula RPO4H2, wherein R is a C6-16 linear, branched or cyclic alkyl group, di alkyl phosphates according to the formula R2PO4H, wherein each R is independently a C6-16 linear, branched or cyclic alkyl group or a combination thereof, and phosphate esters according to the general formula (I) wherein at least one of R?, R? and R?? has the general structure as in general formula (II) wherein n>0 and Q is independently a C1-16 linear, branched or substituted alkyl group, and R
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: September 4, 2018
    Assignee: Sulzer Chemtech AG
    Inventors: Liborio Ivano Costa, Hans-Peter Brack, Francesca Tancini, Yingchuan Yu
  • Patent number: 10059799
    Abstract: A method for stabilizing a condensed phase composition in a process of manufacturing a polyester from cyclic ester monomer comprising the steps of devolatilizing a reaction mixture, which contains i) at least one polymerizable cyclic ester, ii) at least one catalyst and optionally at least one initiator, to produce a vapor stream and a molten residue, wherein the vapor stream includes mainly i) the at least one polymerizable cyclic ester and ii) the at least one catalyst and/or the at least one initiator and/or a reaction product or a residue of the at least one catalyst and/or the at least one initiator and condensing the vapor stream to form the condensed phase composition, wherein at least one polymerization inhibitor is added as stabilizer to the reaction mixture and/or to the condensed phase composition in an amount so that the degree of conversion of the polymerizable cyclic ester in the condensed phase composition is not more than 15%, wherein the degree of conversion is 100?(c0?CF)/c0, wherein c0 is t
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: August 28, 2018
    Assignee: Sulzer Chemtech AG
    Inventors: Liborio Ivano Costa, Hans-Peter Brack, Francesca Tancini, Yingchuan Yu
  • Patent number: 9956500
    Abstract: A liquid mixing collector includes first and second sump zones, a first and optionally a second liquid collection region, first and second interspersed sets of spaced apart liquid collection channels positioned in the first liquid collection region, the first and second sets of collection channels being associated with the first and second respective sump zones, wherein adjacent liquid collection channel sets are vertically displaced in parallel horizontal planes. The invention also relates to the process of using the collector within a heat or mass transfer column.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: May 1, 2018
    Assignee: Sulzer Chemtech AG
    Inventors: Marc Wehrli, Christian G. Bachmann, Hans-Peter Brack, Florian Kehrer
  • Publication number: 20170240700
    Abstract: A method for stabilizing a condensed phase composition in a process of manufacturing a polyester from cyclic ester monomer comprising the steps of devolatilizing a reaction mixture, which contains i) at least one polymerizable cyclic ester, ii) at least one catalyst and optionally at least one initiator, to produce a vapor stream and a molten residue, wherein the vapor stream includes mainly i) the at least one polymerizable cyclic ester and ii) the at least one catalyst and/or the at least one initiator and/or a reaction product or a residue of the at least one catalyst and/or the at least one initiator and condensing the vapor stream to form the condensed phase composition, wherein at least one polymerization inhibitor is added as stabilizer to the reaction mixture and/or to the condensed phase composition in an amount so that the degree of conversion of the polymerizable cyclic ester in the condensed phase composition is not more than 15%, wherein the degree of conversion is 100? (c0?CF)/c0, wherein c0 is
    Type: Application
    Filed: August 19, 2015
    Publication date: August 24, 2017
    Applicant: Sulzer Chemtech AG
    Inventors: Liborio Ivano Costa, Hans-Peter Brack, Francesca Tancini, Yingchuan Yu
  • Publication number: 20170240697
    Abstract: A process of manufacturing a polyester from cyclic ester monomer comprises the steps of: a) providing a cyclic ester, b) polymerizing the cyclic ester in the presence of a catalyst and optionally an initiator in a reactor to form a reaction mixture comprising polyester and unreacted cyclic ester, wherein after the polymerization at least one polymerization inhibitor is added to the reaction mixture, wherein the polymerization inhibitor is selected from the group consisting of monoimines, diimines, mono alkyl phosphates according to the formula RPO4H2, wherein R is a C6-16 linear, branched or cyclic alkyl group, di alkyl phosphates according to the formula R2PO4H, wherein each R is independently a C6-16 linear, branched or cyclic alkyl group or a combination thereof, and phosphate esters according to the general formula (I) wherein at least one of R?, R? and R?? has the general structure as in general formula (II) wherein n>0 and Q is independently a C1-16 linear, branched or substituted alkyl group, and R
    Type: Application
    Filed: September 3, 2015
    Publication date: August 24, 2017
    Applicant: Sulzer Chemtech AG
    Inventors: Liborio Ivano Costa, Hans-Peter Brack, Francesca Tancini, Yingchuan Yu
  • Publication number: 20160151722
    Abstract: A liquid mixing collector 1 is disclosed which comprises a first and a second sump zone, 10, 20, a first and optionally a second liquid collection region, 40, 50, a first and a second interspersed set, 60, 70, of spaced apart liquid collection channels 80 positioned in a first liquid collection region 40; said first set 60 being associated with said first sump zone 10; said second set 70 being associated with said second sump zone 20; wherein adjacent liquid collection channels 80 of the first and second sets, 60, 70, are vertically displaced from each other in one of at least two to four parallel horizontal planes 100. The present invention also relates to a column comprising said collector 1, the use of said collector 1 in a mass transfer or heat exchange column, and a method of collecting and mixing descending liquid in a column.
    Type: Application
    Filed: January 29, 2014
    Publication date: June 2, 2016
    Applicant: Sulzer Chemtech AG
    Inventors: Marc Wehrli, Christian G. Bachmann, Hans-Peter Brack, Florian Kehrer
  • Patent number: 8426532
    Abstract: Methods of forming polycarbonate graft copolymers are provided. In particular, a polycarbonate polymer or copolymer containing allyl groups provides the backbone for the graft copolymer, and pendant chains are attached to the copolymer through the allyl groups. The graft copolymers exhibit a combination of high transparency, good graft levels, good scratch resistance, and/or good anti-fog properties.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: April 23, 2013
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Rubin Huang, Andre van Zyl, Jan Pleun Lens, Theodorus Lambertus Hoeks, Hans-Peter Brack, Jan Henk Kamps
  • Patent number: 8309275
    Abstract: A method for preparing a membrane to be assembled in a membrane, electrode assembly includes the step of swelling an ion-conducting membrane in a liquid containing at least one solvent or to an atmosphere containing the vapor phase of at least one solvent by controlling the content of the solvent in the ion-conducting membrane. A method for manufacturing a membrane electrode assembly using an ion conducting membrane includes the steps of: providing an ion-conducting membrane in a pre-swollen state; coating the ion-conducting membrane on both sides with an electrode layer to form a sandwich; and hot-pressing the sandwich to form an ion-conducting bonding of the layers of the sandwich. Furthermore, a membrane electrode assembly is disclosed including a hot pressed sandwich having an electrode layer, a ion-conducting membrane and again an electrode layer, thereby using the ion-conducting membrane in its pre-swollen status prior to the hot-pressing.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: November 13, 2012
    Assignee: Paul Scherrer Institut
    Inventors: Hans-Peter Brack, G√ľnther Scherer, Lorenz Gubler
  • Patent number: 8273849
    Abstract: Disclosed herein is a polycarbonate polymer comprising: an isosorbide unit, and an aliphatic unit different from the isosorbide unit, wherein the isosorbide unit and aliphatic unit are each carbonate, or a combination of carbonate and ester units and the aliphatic unit is derived from an aliphatic oligomer having a molecular weight of 900 to 4000.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: September 25, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Jan Henk Kamps, Bernardus Jansen, Hans-Peter Brack
  • Publication number: 20120071606
    Abstract: Methods of forming polycarbonate graft copolymers are provided. In particular, a polycarbonate polymer or copolymer containing allyl groups provides the backbone for the graft copolymer, and pendant chains are attached to the copolymer through the allyl groups. The graft copolymers exhibit a combination of high transparency, good graft levels, good scratch resistance, and/or good anti-fog properties.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 22, 2012
    Inventors: Rubin Huang, Andre van Zyl, Jan Pleun Lens, Theodorus Lambertus Hoeks, Hans-Peter Brack, Jan Henk Kamps
  • Publication number: 20120053342
    Abstract: The present invention provides methods of forming carbamates, ureas, and isocyanates. In certain embodiments these methods include the step of reacting an amine with an ester-substituted diaryl carbonate to form an activated carbamate which can be further derivatized to form non-activated carbamate or a urea. The urea or carbamate can be subjected to a pyrolysis reaction to form isocyanate.
    Type: Application
    Filed: November 4, 2011
    Publication date: March 1, 2012
    Applicant: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Hatem Abdallah Belfadhel, Hans-Peter Brack, Ricardo Godoy-Lopez, Dennis James Patrick Maria Willemse
  • Patent number: 8058469
    Abstract: The present invention provides methods of forming carbamates, ureas, and isocyanates. In certain embodiments these methods include the step of reacting an amine with an ester-substituted diaryl carbonate to form an activated carbamate which can be further derivitized to form non-activated carbamate or a urea. The urea or carbamate can be subjected to a pyrolysis reaction to form isocyanate.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: November 15, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Hatem Abdallah Belfadhel, Hans-Peter Brack, Ricardo Godoy-Lopez, Dennis James Patrick Maria Willemse
  • Patent number: 7977447
    Abstract: A method for forming a monomeric carbonate includes the step of combining a monofunctional alcohol or a difunctional diol with an ester-substituted diaryl carbonate to form a reaction mixture. Similarly, a method for forming a monomeric ester includes the step of combining a monofunctional carboxylic acid or ester with an ester-substituted diaryl carbonate to form a reaction mixture. These methods further include the step of allowing the reaction mixtures to react to form a monomeric carbonate or a monomeric ester, respectively.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: July 12, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Hatem Abdallah Belfadhel, Hans-Peter Brack, Ricardo Godoy-Lopez, Dennis James Patrick Maria Willemse
  • Publication number: 20110160422
    Abstract: Disclosed herein is a polycarbonate polymer comprising: an isosorbide unit, a polysiloxane unit; and an aliphatic unit different from the isosorbide unit, wherein the isosorbide unit, polysiloxane unit, and aliphatic unit are each carbonate, or a combination of carbonate and ester units and the aliphatic unit is derived from an aliphatic oligomer having a molecular weight of 900 to 4000.
    Type: Application
    Filed: September 29, 2010
    Publication date: June 30, 2011
    Applicant: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Jan Henk Kamps, Bernardus Jansen, Hans-Peter Brack
  • Publication number: 20110077377
    Abstract: A polycarbonate is provided that contains repeat units derived from isosorbide and a residue derived from an activated diaryl carbonate. The polycarbonate has 1H-NMR peaks associated with the repeat units derived from isosorbide. The polycarbonate contains no more than a maximum allowable amount of sorbitol-derived color bodies. If these color bodies are present in the polycarbonate it has a 1H-NMR peak associated with the color bodies. The maximum allowable amount of color bodies are present when the integrated area of the 1H-NMR peak associated with the color bodies divided by the integrated areas of the 1H-NMR peaks associated with the repeat units derived from isosorbide is 0.025.
    Type: Application
    Filed: December 8, 2010
    Publication date: March 31, 2011
    Applicant: SABIC INNOVATIVE PLASTICS IP BV
    Inventors: Hans-Peter Brack, Marianne Guyader, Han Vermeulen, Dennis James Patrick Maria Willemse
  • Patent number: 7863404
    Abstract: A polycarbonate is provided that contains repeat units derived from isosorbide and a residue derived from an activated diaryl carbonate. The polycarbonate has 1H-NMR peaks associated with the repeat units derived from isosorbide. The polycarbonate contains no more than a maximum allowable amount of sorbitol-derived color bodies. If these color bodies are present in the polycarbonate it has a 1H-NMR peak associated with the color bodies. The maximum allowable amount of color bodies are present when the integrated area of the 1H-NMR peak associated with the color bodies divided by the integrated areas of the 1H-NMR peaks associated with the repeat units derived from isosorbide is 0.025.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: January 4, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Hans-Peter Brack, Marianne Guyader, Han Vermeulen, Dennis James Patrick Maria Willemse
  • Patent number: 7858728
    Abstract: Disclosed herein is a polycarbonate comprising a terminal olefin group of the formula wherein R1 is a C1-C40 hydrocarbon that can be unsubstituted or substituted with a halogen, olefin, ether, ketone, or C4-C30 polyoxyalkylene functionality in which the alkylene groups contain 2 to 6 carbon atoms, R2 to R4 are each independently a hydrogen or a C1-C40 hydrocarbon that can be unsubstituted or substituted with a halogen, olefin, ether, ketone, or a C4-C30 polyoxyalkylene functionality in which the alkylene groups contain 2 to 6 carbon atoms, and optionally wherein any two of R1 to R4 together form a monocyclic, bicyclic, or tricyclic ring system optionally substituted with a heteroatom in each ring.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: December 28, 2010
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Hans-Peter Brack, Bernard Jansen, Jan Henk Kamps, Hans Looij, Han Vermeulen, Dennis Willemse
  • Patent number: 7834125
    Abstract: A melt polymerized polycarbonate comprising repeat units in the polycarbonate derived from the melt polymerization of monomers (II) and/or (III), monomer (IV), and optionally monomer (VIII), wherein monomers (II) and (III) are diaryl dihydroxy compounds, monomer (IV) is a sterically hindered dihydroxy compound, and monomer (VIII) is a non-sterically hindered dihydroxy diaryl compound; wherein the mole ratio of repeat units in the polycarbonate derived from monomers [(II)+(III)]:(IV):(VIII) is 15-70:1-85:0-50, the sum of the mole percent of repeat units in the polycarbonate derived from monomers [(II)+(III)]+(IV) is greater than or equal to 50 mole %, and the sum of the mole percent of units in the polycarbonate derived from monomers [(II)+(III)]+(IV)+(VIII) is 100 mole %; and wherein the polycarbonate has an L* value that is at least 1 L* unit value higher than the same polycarbonate in which monomer (IV) is replaced by bisphenol A.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: November 16, 2010
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Hans-Peter Brack, Dennis Karlik, Jan-Pleun Lens, Dennis James Patrick Maria Willemse, Josef Gerardus Berndsen