Patents by Inventor Klaus-Dieter Hoetzl

Klaus-Dieter Hoetzl 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: 8545620
    Abstract: The invention relates to an inorganic binder system comprising a) calcium silicate cement, b) calcium aluminate cement, c) at least one trifunctional polyalkylene glycol and d) optionally calcium sulphate. Additionally disclosed is the use of at least one polyalkylene glycol as an accelerator for an inorganic binder system comprising a) calcium silicate cement, b) calcium aluminate cement and d) optionally calcium sulphate.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: October 1, 2013
    Assignee: Construction Research & Technology GmbH
    Inventors: Karl Frenkenberger, Stefan Köhler, Thomas Heichele, Klaus-Dieter Hötzl, Patrick Weiss, Alexander Dressen
  • Patent number: 8535436
    Abstract: The use of cyclohexanepolycarboxylic acid derivatives for reducing or minimizing the dust emission when handling pulverulent construction chemistry products, processes for the preparation of the pulverulent construction chemistry products and hydraulically setting materials containing the cyclohexanepolycarboxylic acid derivatives according to the invention are proposed.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: September 17, 2013
    Assignee: Construction Research & Technology GmbH
    Inventors: Josef Weichmann, Werner Stohr, Volker Schwarz, Klaus-Dieter Hoetzl, Boris Breitscheidel
  • Patent number: 8454744
    Abstract: The use of a mixture of at least one polyol and at least one cyclohexanepolycarboxylic acid derivative for reducing or minimizing the dust emission when handling pulverulent construction chemistry products, processes for the preparation of the pulverulent construction chemistry products and hydraulically setting materials containing the mixture according to the invention are proposed.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: June 4, 2013
    Assignee: Construction Research & Technology GmbH
    Inventors: Klaus-Dieter Hoetzl, Silvia Dürndorfer, Joachim Riedmiller, Volker Schwarz, Werner Stohr
  • Publication number: 20130118381
    Abstract: The invention relates to an inorganic binder system comprising a) calcium silicate cement, b) calcium aluminate cement, c) at least one trifunctional polyalkylene glycol and d) optionally calcium sulphate. Additionally disclosed is the use of at least one polyalkylene glycol as an accelerator for an inorganic binder system comprising a) calcium silicate cement, b) calcium aluminate cement and d) optionally calcium sulphate.
    Type: Application
    Filed: March 7, 2011
    Publication date: May 16, 2013
    Inventors: Karl Frenkenberger, Stefan Köhler, Thomas Heichele, Klaus-Dieter Hötzl, Patrick Weiss, Alexander Dressen
  • Patent number: 8262793
    Abstract: The invention relates to a pulverulent building material composition, preferably a factory dry mortar and in particular a tile adhesive, joint grout, knifing filler, sealing slurry, repair mortar, equalization mortar, basecoat adhesive, adhesive for composite thermal insulation systems (CTISs), mineral plaster or render, fine knifing filler or screed system, containing an ester of A) at least one compound selected from the group consisting of neopentyl glycol, 2-methyl-2-(hydroxymethyl)-1,3-propanediol and pentaerythritol with B) a carboxylic acid component.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: September 11, 2012
    Assignee: Construction Research & Technology GmbH
    Inventors: Werner Stohr, Klaus-Dieter Hötzl, Wolfgang Seidl, Siegfried Zuern, Steffen Wache
  • Publication number: 20120097076
    Abstract: The invention relates to a powdery building material composition, preferably a factory-made dry mortar, and in particular tile adhesives, joint fillers, knifing fillers, sealing slurries, repair mortars, leveling mortars, reinforcing adhesives, adhesives for thermal insulation composite systems (TICSs) mineral plaster or render, fine knifing composition, and screed systems, containing an ester of A) 2-ethylhexanoic acid and B) an alcohol having a boiling point of at least 160° C. The invention further relates to the production of said products and to the use of the esters according to the invention in powdery building material compositions to reduce dusting.
    Type: Application
    Filed: April 13, 2010
    Publication date: April 26, 2012
    Inventors: Werner Stohr, Klaus-Dieter Hötzl, Wolfgang Seidl, Siegfried Zuern, Steffen Wache
  • Publication number: 20110265693
    Abstract: The use of a mixture of at least one polyol and at least one cyclohexanepolycarboxylic acid derivative for reducing or minimizing the dust emission when handling pulverulent construction chemistry products, processes for the preparation of the pulverulent construction chemistry products and hydraulically setting materials containing the mixture according to the invention are proposed.
    Type: Application
    Filed: September 7, 2009
    Publication date: November 3, 2011
    Applicant: Construction Research & Tecnology GMBH
    Inventors: Klaus-Dieter Hoetzl, Silvia Dürndorfer, Joachim Riedmiller, Volker Schwarz, Werner Stohr
  • Publication number: 20110209644
    Abstract: The use of cyclohexanepolycarboxylic acid derivatives for reducing or minimizing the dust emission when handling pulverulent construction chemistry products, processes for the preparation of the pulverulent construction chemistry products and hydraulically setting materials containing the cyclohexanepolycarboxylic acid derivatives according to the invention are proposed.
    Type: Application
    Filed: May 28, 2009
    Publication date: September 1, 2011
    Inventors: Josef Weichmann, Werner Stohr, Volker Schwarz, Klaus-Dieter Hoetzl, Boris Breitscheidel
  • Publication number: 20110179976
    Abstract: The invention relates to a process for dedusting a pulverulent building material composition, preferably a factory dry mortar and in particular tile adhesive, joint filler, filling compound, sealing slurry, repair mortar, levelling mortar, reinforcing adhesive, adhesive for composite thermal insulation systems (CTIS), mineral render, fine filler and screed systems, at least one dedusting agent which is liquid at 20° C. being brought into contact with the pulverulent building material composition at a temperature of >40° C. Preferably this occurs by spraying.
    Type: Application
    Filed: May 28, 2009
    Publication date: July 28, 2011
    Inventors: Manfred Huber, Klaus-Dieter Hoetzl