Patents by Inventor Franz Etschmann

Franz Etschmann 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).

  • Setting retarder for hydraulically setting compositions
    Patent number: 8444764
    Abstract: The present invention relates to a setting retarder for compounds that set hydraulically, containing at least one at least simple adduct and/or condensate, the retarder being produced by the reaction of at least one protein hydrolysate, one pure amino acid, amino acid mixture, and/or the hydrochlorides thereof having at least one mono-, di-, oligo- and/or polycarboxylic acid which is not derived from an amino acid, and/or a carboxylic acid derivative derived therefrom, wherein the carboxylic acid is selected from a group including carboxylic acid anhydrides, carboxylic acid halogenides, and/or carboxylic acid active esters.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: May 21, 2013
    Assignee: Sika Technology AG
    Inventors: Maria Winkler, Franz Etschmann
  • SETTING RETARDER FOR HYDRAULICALLY SETTING COMPOSITIONS
    Publication number: 20110056409
    Abstract: The present invention relates to a setting retarder for compounds that set hydraulically, containing at least one at least simple adduct and/or condensate, the retarder being produced by the reaction of at least one protein hydrolysate, one pure amino acid, amino acid mixture, and/or the hydrochlorides thereof having at least one mono-, di-, oligo- and/or polycarboxylic acid which is not derived from an amino acid, and/or a carboxylic acid derivative derived therefrom, wherein the carboxylic acid is selected from a group including carboxylic acid anhydrides, carboxylic acid halogenides, and/or carboxylic acid active esters.
    Type: Application
    Filed: April 9, 2009
    Publication date: March 10, 2011
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Maria Winkler, Franz Etschmann