Patents by Inventor Attila Bereck

Attila Bereck 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).

  • Preparation of aqueous solutions suitable for finishing cellulose containing textile materials
    Patent number: 6001132
    Abstract: Aqueous solutions of N-methylol compounds of carboxamides, urethanes, ureas and aminotriazines or of N-methylol ethers of these compounds that are suitable for finishing cellulose-containing textile materials are prepared by reaction of compounds having one or more N--H groups in aqueous solution with formaldehyde and, in the case of N-methylol ethers, with an alcohol by adding boron trifluoride, a boron trifluoride addition compound or tetrafluoroboric acid or a salt thereof to the aqueous solutions during or immediately after the reaction.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: December 14, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Attila Bereck, Klaus Flory, Matthias Kummer
  • Use of cyclic esters of sulfurous acid in the dyeing of polyamide textile materials
    Patent number: 4813971
    Abstract: Textile materials made of natural or synthetic polyamides or mixtures thereof are dyed in the presence of a cyclic ester of sulfurous acid with an aliphatic 1,2-diol in place of a customary pH regulant.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: March 21, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Sigismund Heimann, Michele Vescia, Attila Bereck, Hermann Sulz, Ingrid Steenken