Patents by Inventor Ulrich Riegel

Ulrich Riegel 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: 20080200331
    Abstract: The present invention relates to a process for producing a water-absorbing material comprising the steps of a) spray-coating water-absorbing polymeric particles with an elastic film-forming polymer in a fluidized bed reactor in the range from 00 C to 1500 C and b) heat-treatment of the coated particles at a temperature above 50° C., wherein in step b) the duration of the heat-treatment is chosen that the CS-SFC value of the obtained polymeric particles is at least 10% of the optimum CS-SFC value, and the water-absorbing material obtainable by this process.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 21, 2008
    Inventors: Thomas Daniel, Ulrich Riegel, Stefan Bruhns, Mark Elliott, Karl Haberle, Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Jean-Philippe Marie Autran
  • Publication number: 20080187756
    Abstract: The present invention relates to a water-absorbing material obtainable by a process comprising the steps of a) spray-coating water-absorbing polymeric particles with an elastic film-forming polymer in a fluidized bed reactor in the range from 00 C. to 500 C and b) heat-treating the coated particles at a temperature above 500 C. and also to a process for its production.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 7, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Ulrich Riegel, Thomas Daniel, Stefan Bruhns, Mark Elliot, Renae Dianna Fossum, Mattias Schmidt, Axel Meyer, James Scott Madsen
  • Patent number: 7405321
    Abstract: The present invention relates to novel (meth)acrylic esters of polyalkoxylated glycols of the formula where AO is independently at each instance is —O—CHR3-CHR4- or —CHR3-CHR4-O— where R3 and R4 are independently H, linear or branched C1-C8-alkyl, p1 is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, or 35, p2 is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, or 35, n is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 447, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, R1 and R2 are independently H or CH3, wherein there is at least one AO in (AO)p1 and also at
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: July 29, 2008
    Assignee: Basf Aktiengesellschaft
    Inventors: Ulrich Riegel, Thomas Daniel, Matthias Weismantel, Mark Elliott, Rudiger Funk, Reinhold Schwalm
  • Publication number: 20080171837
    Abstract: Disclosed is a process for postcrosslinking a water absorbing polymer by the polymer being treated with at least one postcrosslinker and postcrosslinked and dried during or after the treatment by raising the temperature, the at least one postcrosslinker being a cyclic carbamate or a cyclic urea, wherein the cyclic carbamate or the cyclic urea was obtained by reacting respectively an aminoalcohol or a diamine with a cyclic carbonate.
    Type: Application
    Filed: July 28, 2005
    Publication date: July 17, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Kai Michael Exner, Thomas Daniel, Mark Elliott, Ulrich Riegel
  • Publication number: 20080167905
    Abstract: A computer-based system configured to calculate an estimated risk premium for reinsurance of a cedent's insurance policies covering loss event related fatalities and disabilities. The system stores, for different market scenarios, representative of loss events for a defined insurance market, frequency of loss event and number of insured individuals involved in the loss event. Based on these market scenarios and considering the cedent's market share, the system calculates individual scenarios, indicative of the cedent's exposure to the loss events. Using a standard distribution for the number of insured individuals involved in the loss event, for example a Pareto distribution, and using individual scenarios as interpolation points, the system calculates a set of loss event frequencies by number of individuals insured by the cedent and involved in a loss event. Finally, the system calculates the estimated risk premium from the set of loss event frequencies and from severity data.
    Type: Application
    Filed: April 5, 2005
    Publication date: July 10, 2008
    Applicant: Swiss Reinsurance Company
    Inventors: Harald Bredl, Ulrich Riegel
  • Publication number: 20080161522
    Abstract: The present invention relates to a process for producing water-absorbing polymeric particles by polymerizing a monomer solution, which comprises removing the polymer gel from the reactor when the gel temperature is at least 50° C. and the monomer conversion is not more than 90 mol %, and also to a process for producing hygiene articles.
    Type: Application
    Filed: March 28, 2006
    Publication date: July 3, 2008
    Inventors: Ulrich Riegel, Thomas Daniel, Dieter Hermeling, Mark Elliott
  • Publication number: 20080161499
    Abstract: This invention relates to improved water-swellable material that can significantly withstand deformation by an external pressure, thus showing improved liquid handling properties. In particular, this invention relates to water-swellable material with an improved absorbent capacity/permeability balance. This invention also relates to a water-swellable material, comprising water-swellable polymers and elastomeric polymers, said material being typically in the form of particles, which comprise a core of water-swellable polymer(s) and a shell of said elastomeric polymer(s), whereby the water-swellable material is such that it can withstand deformation due to external pressure. The invention also relates to a specific process of making the specific water-swellable material of the invention.
    Type: Application
    Filed: February 3, 2006
    Publication date: July 3, 2008
    Applicant: Basf Aktiengesellschaft
    Inventors: Ulrich Riegel, Thomas Daniel, Stefan Bruhns, Mark Elliott, Bruno Johannes Ehrnsperger, Stephen Allen Goldmann, Renae Fossum, Matthias Schmidt, Axel Meyer
  • Publication number: 20080154224
    Abstract: The present invention relates to a process for producing a water-absorbing material comprising the steps of a) spray-coating water-absorbing polymeric particles with an elastic film-forming polymer in a fluidized bed reactor in the range from 00 C to 15O0 C and b) heat-treatment of the coated particles at a temperature above 50° C., wherein in step a) and/or b) a coalescing agent is added and the water-absorbing material obtainable by this process.
    Type: Application
    Filed: February 3, 2006
    Publication date: June 26, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Thomas Daniel, Ulrich Riegel, Stefan Bruhns, Mark Elliott, Karl Haberle, Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Jean-Philippe Marie Autran
  • Publication number: 20080124551
    Abstract: The present invention relates to a process for producing a water-absorbing material comprising the steps of a) spray-coating water-absorbing polymeric particles with an elastic film-forming polymer in a fluidized bed reactor in the range from 0° C. to 1500° C. and b) heat-treatment of the coated particles at a temperature above 50° C., wherein in step a) and/or b) an antioxidant is added and the water-absorbing material obtainable by this process.
    Type: Application
    Filed: February 3, 2006
    Publication date: May 29, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Thomas Daniel, Ulrich Riegel, Stefan Bruhns, Mark Elliott, Karl Haberle, Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Jean-Philippe Marie Autran
  • Publication number: 20080125533
    Abstract: The invention relates to finely divided water-absorbing polymeric particles having high fluid transportation and absorption performance, the Centrifuge Retention Capacity (CRC) being not less than 26 g/g, the absorbency under a load of 4.83 kPa (AUL 1.7 psi) not less than 23 g/g and the Transportation Value (TV) not less than 15,000 cm3s, the Transportation Value (TV) being the product of Saline Flow Conductivity (SFC) and wicking absorption after 60 minutes (DA60) multiplied by 107, and wherein the wicking absorption after 60 minutes (DA60) is the weight of 0.9% by weight sodium chloride solution absorbed by 70 g of the water-absorbing polymeric particles in 60 minutes, wherein the water-absorbing polymeric particles are situated, during measurement, in a circularly round vessel which has an internal diameter of 6 cm and is sealed at its lower end by a sieve base of 36 ?m mesh size, and the sieve base is in atmospheric contact with 0.
    Type: Application
    Filed: October 14, 2005
    Publication date: May 29, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Ulrich Riegel, Thomas Daniel, Dieter Hermeling, Mark Elliott
  • Publication number: 20080114140
    Abstract: The invention relates to a method for producing polymers which contain (meth)acrylate salt units by radical polymerization of (meth)acrylate salt and optionally other monomers in an aqueous medium, using a supersaturated aqueous solution of (meth)acrylate salt. The highly concentrated reaction mixtures so obtained are characterized by a high solid content and increased space-time yield.
    Type: Application
    Filed: January 18, 2005
    Publication date: May 15, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Thomas Daniel, Ulrich Riegel, Mark Elliott
  • Publication number: 20080032035
    Abstract: The present invention relates to an absorbent structure suitable in, or being an adult or infant diaper or feminine hygiene article, comprising a water-absorbing material comprising water-absorbing particles that comprise a film coating, comprising an elastic film-forming polymer and a coalescing agent. The invention also relates to an absorbent structure comprising a water absorbent material obtainable by a process of: a) spray-coating water-absorbing polymeric particles with an elastic film-forming polymer in a fluidized bed reactor at a temperature in the range from 0° C. to 150° C. and b) heat-treatment of the coated polymeric particles at a temperature above 50° C., wherein in step a) and/or b) a coalescing agent is added.
    Type: Application
    Filed: August 3, 2007
    Publication date: February 7, 2008
    Inventors: Mattias Schmidt, Axel Meyer, Renae Fossum, Jean-Philippe Autran, Ulrich Riegel, Thomas Daniel, Stefan Bruhns, Mark Elliott, Karl Haeberle
  • Publication number: 20080027402
    Abstract: The present invention relates to an absorbent structure suitable in, or being an adult or infant diaper or feminine hygiene article, comprising a water-absorbing material comprising water-absorbing particles that comprise a film coating, comprising an elastic film-forming polymer and an antioxidant. The invention also relates to an absorbent structure comprising a water absorbent material obtainable by a process of: a) spray-coating water-absorbing polymeric particles with an elastic film-forming polymer in a fluidized bed reactor at a temperature in the range from 0° C. to 150° C. and b) heat-treatment of the coated polymeric particles at a temperature above 50° C., wherein in step a) and/or b) an antioxidant is added.
    Type: Application
    Filed: August 3, 2007
    Publication date: January 31, 2008
    Inventors: Mattias Schmidt, Axel Meyer, Renae Fossum, Jean-Philippe Autran, Ulrich Riegel, Thomas Daniel, Stefan Bruhns, Mark Elliott, Karl Haeberle
  • Publication number: 20070293632
    Abstract: The present invention relates to a process for postcrosslinking water-absorbing polymeric particles in the absence of oxidizing gases, to the water-absorbing polymers preparable by the process and to their use in hygiene articles and packaging materials.
    Type: Application
    Filed: November 28, 2005
    Publication date: December 20, 2007
    Applicant: BASF AKTIENGESELLSCHAFT, A GERMAN CORPORATION
    Inventors: Ulrich Riegel, Thomas Daniel, Uwe Stueven, Mark Elliott
  • Publication number: 20070293617
    Abstract: The invention concerns water-absorbing polymeric particles possessing high saline flow conductivity in the swollen state which comprise insoluble metal sulfates as synergistic fillers, and also a process for their production and their use.
    Type: Application
    Filed: November 28, 2005
    Publication date: December 20, 2007
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Ulrich Riegel, Thomas Daniel, Dieter Hermeling, Mark Elliott
  • Publication number: 20070244283
    Abstract: Swellable hydrogel-forming polymers having high permeability Swellable hydrogel-forming polymer comprising at least one hydrophilic polymer of dendritic structure and at least one water-insoluble phosphate, a process for preparing the swellable hydrogel-forming polymer and also its use in hygiene articles.
    Type: Application
    Filed: March 22, 2005
    Publication date: October 18, 2007
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Ulrich Riegel, Thomas Daniel, Matthias Weismantel, Mark Elliott, Dieter Hermeling
  • Patent number: 7259212
    Abstract: The present invention relates to novel (meth)acrylic esters of polyalkoxylated trimethylolpropane of the formula where EO is O—CH2-CH2- PO is independently at each instance O—CH2-CH(CH3)- or O—CH(CH3)-CH2- n1, n2 and n3 are independently 4, 5 or 6, n1+n2+n3 is 14, 15 or 16, m1, m2 and m3 are independently 1, 2 or 3, m1+m2+m3 is 4, 5 or 6, R1, R2 and R3 are independently H or CH3, a simplified process for preparing these esters and the use of reaction mixtures thus obtainable.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: August 21, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Popp, Thomas Daniel, Jürgen Schröder, Thomas Jaworek, Rüdiger Funk, Reinhold Schwalm, Matthias Weismantel, Ulrich Riegel
  • Publication number: 20070161759
    Abstract: The invention concerns a process for producing water-absorbing polymer, which comprises a base polymer A being mixed with a first aqueous solution B of at least one surface postcrosslinker and a second aqueous solution C of at least one polyvalent cation and thermally treated, wherein said base polymer A is based on at least 50% neutralized acid-functional monomer and said solutions B and C are metered wholly or partly concurrently through separate nozzles whereby a water-absorbing polymer having a high saline flow conductivity value is obtained.
    Type: Application
    Filed: February 18, 2005
    Publication date: July 12, 2007
    Applicant: Basf Aktiengesellschaft
    Inventors: Ulrich Riegel, Thomas Daniel, Matthias Weismantel, Mark Elliott, Dieter Hermeling
  • Publication number: 20070129564
    Abstract: Process for preparing (meth)acrylic esters, in which chromanol derivatives are used as stabilizers against polymerization, and the use of the thus obtainable (meth)acrylic esters.
    Type: Application
    Filed: February 16, 2005
    Publication date: June 7, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Reinhold Schwalm, Barbel Meyer, Helmut Gruner, Thomas Daniel, Ulrich Riegel, Dieter Hermeling
  • Publication number: 20070106239
    Abstract: Swellable hydrogel-forming polymer comprising at least one hydrophilic polymer of dendritic structure, a process for preparing the swellable hydrogel-forming polymer and also its use in hygiene articles.
    Type: Application
    Filed: December 17, 2004
    Publication date: May 10, 2007
    Applicant: BASF AKTIENGESELLSCHAFT a German corporation
    Inventors: Ulrich Riegel, Thomas Daniel, Matthias Weismantel, Mark Elliott, Dieter Hermeling