Patents by Inventor Rolf Fikentscher

Rolf Fikentscher 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).

  • Manufacture of aziridinecarboxylic acid esters
    Patent number: 4025503
    Abstract: Aziridinecarboxylic acid esters are prepared by trans-esterification of aziridinecarboxylic acid methyl, ethyl or propyl esters in the presence of a high-boiling paraffin hydrocarbon and optionally of an amine.
    Type: Grant
    Filed: July 5, 1974
    Date of Patent: May 24, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Felix Miksovsky, Rolf Fikentscher
  • Textile print pastes containing disperse dyes
    Patent number: 3994680
    Abstract: A print paste for printing textiles of polyester, cellulose acetate, cellulose triacetate and mixtures of the same with other fibers which is based on a disperse dye, thickener, ethanolamide of a carboxylic acid and water and which is characterized by a content of at least one phenol which has been oxyethylated twice to six times. The paste yields prints having excellent color strength and levelness.
    Type: Grant
    Filed: September 19, 1974
    Date of Patent: November 30, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Mueller, Rolf Fikentscher, Guenter Meyer, Knut Oppenlaender
  • Manufacture of bonded textile sheet structures
    Patent number: 3988516
    Abstract: A process for improving the water absorption of textile sheet structures bonded by means of a polymer solution or dispersion, by the application and fixation of a polyglycol ether derivative containing at least two aziridine rings.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: October 26, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Felix Miksovsky, Rolf Fikentscher, Axel Sanner
  • Quaternary ammonium salts
    Patent number: 3963714
    Abstract: Special quaternary ammonium salts of 2,4,6-tris-(.omega.-dialkylamino-alkyleneamino)-triazines and 2,4,6-tris-(.omega.-dialkylaminoalkoxy)-triazines and their use in dyeing anionic polyacrylonitrile fibers with basic dyes; these special derivatives of triazine are particularly effective retarders.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: June 15, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Jozsef Gerendas, Herbert Fleischer, Rolf Fikentscher, Herbert Helfert
  • Powder coating agents
    Patent number: 3948834
    Abstract: A pulverulent coating agent which consists of a mixture of:A. a compound having at least two aziridine ring groupings per molecule;B a binder which contains hydroxyl groups and which is solid at ambient temperature; and optionallyC one or more other additives.The coating agent is particularly suitable for powder coating metal surfaces.
    Type: Grant
    Filed: August 28, 1973
    Date of Patent: April 6, 1976
    Assignee: Badische Anilin- & Soda-Fabrik Aktiengesellschaft
    Inventors: Otto Brussmann, Felix Miksovsky, Rolf Fikentscher, Horst Diefenbach
  • Aqueous pigment dispersions
    Patent number: 3947287
    Abstract: An aqueous pigment dispersion which contains (a) pigment, (b) a water-soluble surfactant and water and a water-retaining agent in which (b) is a reaction product of a polyhydroxyl compound with from 3 to 50 moles of propylene oxide and from 2 to 70 moles of ethylene oxide per equivalent of hydroxyl. The dispersions give bright and deep-shade emulsion paints or distempers containing cellulose ethers.
    Type: Grant
    Filed: December 12, 1973
    Date of Patent: March 30, 1976
    Assignee: Badische Anilin- & Soda-Fabrik Aktiengesellschaft
    Inventors: Horst Belde, Knut Oppenlaender, Ewald Daubach, Rolf Fikentscher
  • Production of level dyeings on acrylonitrile polymer fibers with basic dyes
    Patent number: 3945794
    Abstract: Acrylonitrile polymer fibers are dyed level shades with basic dyes using as leveling agent a quaternary ammonium salt containing two or three benzyl groups as nitrogen ligands.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: March 23, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudolf Rokohl, Rolf Fikentscher, Herbert Helfert