Patents by Inventor Joachim Dengler

Joachim Dengler 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: 20240174568
    Abstract: The present application relates to a cementitious composition suitable to be applied to an object via a nozzle. The composition comprises a) 15-90% by weight of a cementitious binder, b) 0.02-3% by weight of an ettringite formation controller, c) 0.15-10% by weight of a magnesium salt accelerator and d) 0.02-2% by weight of a polyhydroxy compound A, and/or salts or esters thereof, wherein the polyhydroxy compound A is selected from polyalcohols with a carbon to oxygen ratio of C/O?1 and mixtures 0 thereof, based on the total dry weight of the composition. Further a process for applying the composition onto a surface and a hardened structure obtained by the process is disclosed.
    Type: Application
    Filed: February 14, 2022
    Publication date: May 30, 2024
    Inventors: Harald GRASSL, Joachim DENGLER, Marita SPIERLING
  • Patent number: 11926715
    Abstract: The invention relates to a process for producing a pulverulent composition comprising at least one polymeric dispersant (PD) which comprises structural units having anionic and/or anionogenic groups and structural units having polyether side chains, and at least one polysaccharide (PS). The process here comprises the process steps: a) production of an aqueous dispersion having a viscosity of the dispersion of less than 10 000 mPa·s, comprising the at least one polymeric dispersant (PD) and the at least one polysaccharide (PS) and b) spray drying of the aqueous dispersion produced in process step a). Furthermore, the use of the pulverulent composition according to the invention in inorganic binder compositions, especially as a rheological additive, is disclosed.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: March 12, 2024
    Assignee: BASF SE
    Inventors: Torben Gaedt, Joachim Dengler, Manfred Bichler
  • Publication number: 20230303442
    Abstract: The present invention relates to a construction chemical composition, comprising a) at least one inorganic binder, b) less than 0.5 weight-%, based on the total amount of a), b) and c), of at least one compound of the general formula (I) and at least c) one alkali metal carbonate. Further the use of a hydration control mixture as a retarder for at least one inorganic binder, comprising an aluminate-containing binder is disclosed.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 28, 2023
    Inventors: Harald GRASSL, Joachim DENGLER, Julien BIZZOZERO, Alexander SCHOEBEL
  • Publication number: 20220212994
    Abstract: A shotcrete composition comprising a) a cementitious binder; b) an ettringite formation controller comprising (i) a glyoxylic acid condensate and/or a glyoxylic acid adduct; and c) an alkali-free, aluminum-based shotcrete accelerator. The invention further relates to a process comprising providing a cementitious composition comprising a) a cementitious binder, and b) an ettringite formation controller comprising (i) a glyoxylic acid condensate and/or a glyoxylic acid adduct; admixing an alkali-free, aluminum-based shotcrete accelerator to the cementitious composition to obtain a shotcrete composition; and applying the shotcrete composition onto a surface to obtain a shotcrete structure and allowing the shotcrete structure to harden. The invention also relates to a hardened shotcrete structure obtained by this process.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 7, 2022
    Inventors: Tatiana MITKINA, Joachim DENGLER
  • Patent number: 11345636
    Abstract: The present invention relates to a gypsum composition comprising recycled gypsum and a foam former comprising at least one alpha-sulfo fatty acid disalt, to a process for production thereof and to an article comprising the gypsum composition of the invention. The present invention further relates to the use of a foam former comprising at least one alpha-sulfo fatty acid disalt for reducing the wet density of an aqueous gypsum composition having a recycled gypsum content of at least 0.5% by weight.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: May 31, 2022
    Inventors: Uwe Gehrig, Fabian Niedermair, Joachim Dengler, Georg Daxenberger, Hamouda Jaffel
  • Publication number: 20220135478
    Abstract: The present application relates to a mixture comprising at least one compound A selected from glyoxylic acid, salts thereof, and condensation or addition products of glyoxylic acid or salts thereof; and at least one polyhydroxy compound B. Furthermore, the present application relates to a construction material composition comprising said mixture, and to the use of said mixture for modifying the hardening of inorganic binder containing building material formulations, and/or for producing building products.
    Type: Application
    Filed: February 14, 2020
    Publication date: May 5, 2022
    Inventors: Harald GRASSL, Joachim DENGLER, Julien BIZZOZERO, Alexander SCHÖBEL
  • Patent number: 11274064
    Abstract: A set control composition for cementitious systems comprises (a) an amine-glyoxylic acid condensate, and (b) at least one of (i) a borate source and (ii) a carbonate source. The carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 gL?1 or more, and organic carbonates. The set control composition improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength. Due to the retarding action of the set control composition, the dosage of dispersant(s) necessary to obtain a desired flowability of the cementitious system can be reduced.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: March 15, 2022
    Assignee: Construction Research & Technology GmbH
    Inventors: Harald Grassl, Joachim Dengler, Alexander Schoebel, Gerhard Albrecht, Maxim Pulkin
  • Publication number: 20220002198
    Abstract: A set control composition for cementitious systems comprises (a) an amine-glyoxylic acid condensate, and (b) at least one of (i) a borate source and (ii) a carbonate source. The carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 gL?1 or more, and organic carbonates. The set control composition improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength. Due to the retarding action of the set control composition, the dosage of dispersant(s) necessary to obtain a desired flowability of the cementitious system can be reduced.
    Type: Application
    Filed: October 18, 2018
    Publication date: January 6, 2022
    Inventors: Harald GRASSL, Joachim DENGLER, Alexander SCHOEBEL, Gerhard ALBRECHT, Maxim PULKIN
  • Publication number: 20210188712
    Abstract: The present invention relates to a gypsum composition comprising recycled gypsum and a foam former comprising at least one alpha-sulfo fatty acid disalt, to a process for production thereof and to an article comprising the gypsum composition of the invention. The present invention further relates to the use of a foam former comprising at least one alpha-sulfo fatty acid disalt for reducing the wet density of an aqueous gypsum composition having a recycled gypsum content of at least 0.5% by weight.
    Type: Application
    Filed: October 18, 2018
    Publication date: June 24, 2021
    Applicants: BASF SE, Saint-Gobain Placo
    Inventors: Uwe GEHRIG, Fabian NIEDERMAIR, Joachim DENGLER, Georg DAXENBERGER, Hamouda JAFFEL
  • Publication number: 20210122676
    Abstract: A set control composition for cementitious systems comprises (a) an amine-glyoxylic acid condensate, and (b) at least one of (i) a borate source and (ii) a carbonate source. The carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 gL?1 or more, and organic carbonates. The set control composition improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength. Due to the retarding action of the set control composition, the dosage of dispersant(s) necessary to obtain a desired flowability of the cementitious system can be reduced.
    Type: Application
    Filed: October 18, 2018
    Publication date: April 29, 2021
    Inventors: Harald GRASSL, Joachim DENGLER, Alexander SCHOEBEL, Gerhard ALBRECHT, Maxim PULKIN
  • Patent number: 10865144
    Abstract: The invention relates to a method for producing a dispersant, comprising the steps of a) providing at least one water-soluble polymer comprising polyether groups, b) providing an inorganic component comprising at least one phyllosilicate which has an integral sheet charge of 0, 1 or 2, c) producing an aqueous suspension comprising the at least one water-soluble polymer comprising polyether groups and the inorganic component comprising the at least one phyllosilicate, and d) spray-drying the aqueous suspension to give a solid. Additionally disclosed is the use of the dispersant of the invention in an inorganic binder composition.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: December 15, 2020
    Assignee: BASF SE
    Inventors: Torben Gaedt, Joachim Dengler, Martin Winklbauer, Manfred Bichler, Oliver Mazanec
  • Patent number: 10815152
    Abstract: The present invention relates to a mixture comprising at least one compound comprising an ?-hydroxy-carboxylic unit, ?-hydroxy-sulfonic acid unit or ?-carbonyl-carboxylic unit and at least one water-soluble organic carbonate. The mixture is useful as a hydration control agent in construction chemical compositions comprising an inorganic binder.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: October 27, 2020
    Assignee: BASF SE
    Inventors: Joachim Dengler, Christoph Hesse, Sebastian Seufert
  • Publication number: 20200317905
    Abstract: The invention relates to a composition in the form of a solid and suitable as a dispersant for inorganic solids suspensions, comprising A) at least one water-soluble polymer comprising polyether groups, and B) at least one water-soluble condensation product comprising acid groups and/or salts thereof and based on monomers, the monomers comprising at least ?) a monomer having a ketone radical and ?) formaldehyde. Further disclosed are a method for producing the composition of the invention, and the use thereof in an inorganic binder composition.
    Type: Application
    Filed: August 4, 2017
    Publication date: October 8, 2020
    Applicant: BASF SE
    Inventors: Torben GAEDT, Joachim DENGLER, Oliver MAZANEC
  • Publication number: 20200283584
    Abstract: The invention relates to a process for producing a pulverulent composition comprising at least one polymeric dispersant (PD) which comprises structural units having anionic and/or anionogenic groups and structural units having polyether side chains, and at least one polysaccharide (PS). The process here comprises the process steps: a) production of an aqueous dispersion having a viscosity of the dispersion of less than 10 000 mPa·s, comprising the at least one polymeric dispersant (PD) and the at least one polysaccharide (PS) and b) spray drying of the aqueous dispersion produced in process step a). Furthermore, the use of the pulverulent composition according to the invention in inorganic binder compositions, especially as a rheological additive, is disclosed.
    Type: Application
    Filed: October 24, 2018
    Publication date: September 10, 2020
    Inventors: Torben GAEDT, Joachim DENGLER, Manfred BICHLER
  • Patent number: 10723656
    Abstract: The present invention relates to construction chemical compositions comprising a bisulfite adduct of glyoxylic acid or a salt or mixed salt thereof and an inorganic binder. The composition is useful as a hydration control agent of the inorganic binder.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: July 28, 2020
    Assignee: BASF SE
    Inventors: Torben Gaedt, Joachim Dengler, Oliver Mazanec, Christoph Hesse, Sebastian Seufert
  • Publication number: 20190270671
    Abstract: The present invention concerns an additive for construction chemical compositions, in particular mortar and cement compositions. The additive comprises at least one amide or ester of a sugar acid and at least one water-soluble comb polymer which contains, on the main chain, acid functions and side chains having ether functions. The additive is useful for retarding the hardening of a construction chemical composition.
    Type: Application
    Filed: October 23, 2017
    Publication date: September 5, 2019
    Applicant: BASF SE
    Inventors: Torben GAEDT, Joachim DENGLER, Oliver MAZANEC, Christoph HESSE, Sebastian SEUFERT, Michael SCHINABECK
  • Publication number: 20190177223
    Abstract: The present invention relates to construction chemical compositions comprising a bisulfite adduct of glyoxylic acid or a salt or mixed salt thereof and an inorganic binder. The composition is useful as a hydration control agent of the inorganic binder.
    Type: Application
    Filed: June 9, 2017
    Publication date: June 13, 2019
    Applicant: BASF SE
    Inventors: Torben GAEDT, Joachim DENGLER, Oliver MAZANEC, Christoph HESSE, Sebastian SEUFERT
  • Publication number: 20190119163
    Abstract: The present invention relates to a mixture comprising at least one compound comprising an ?-hydroxy-carboxylic unit, ?-hydroxy-sulfonic acid unit or ?-carbonyl-carboxylic unit and at least one water-soluble organic carbonate. The mixture is useful as a hydration control agent in construction chemical compositions comprising an inorganic binder.
    Type: Application
    Filed: June 9, 2017
    Publication date: April 25, 2019
    Applicant: BASF SE
    Inventors: Joachim DENGLER, Christoph HESSE, Sebastian SEUFERT
  • Patent number: 10144673
    Abstract: The invention relates to a method for producing a calcium silicate hydrate-comprising hardening accelerator in powder form, which comprises the steps of (a) providing an aqueous suspension comprising calcium silicate hydrate; (b) mixing at least one calcium compound, selected from calcium acetate, calcium formate, calcium hydroxide, calcium oxide, and mixtures of two or more of said compounds, with the aqueous suspension comprising calcium silicate hydrate; and (c) drying the resulting mixture. The invention also relates to the hardening accelerator obtainable by this method, to the use thereof, and to building material mixtures which comprise the hardening accelerator.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: December 4, 2018
    Assignee: BASF SE
    Inventors: Manfred Bichler, Martin Winklbauer, Torben Gaedt, Joachim Dengler, Christoph Hesse, Bernhard Mayr
  • Patent number: 10065891
    Abstract: The invention relates to a polymer which is obtainable by copolymerizing monomers comprising at least one ethylenically unsaturated monomer which comprises at least one acid group and at least one ethylenically unsaturated monomer (II) having polyether groups with 5 to 35 repeating units and at least one ethylenically unsaturated monomer (III) having polyether groups with 45 to 150 repeating units, the molar ratio of monomer (II) to monomer (III) being between 75:25 and 99.5:0.5. Further disclosed are the use of the polymer of the invention as an admixture for inorganic binder compositions, and a composition in powder form comprising an inorganic binder and the polymer of the invention.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: September 4, 2018
    Assignee: BASF SE
    Inventors: Manfred Bichler, Martin Winklbauer, Joachim Dengler