Patents by Inventor Karl-Heinz Lemmer

Karl-Heinz Lemmer 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).

  • Composition for treatment of fiber materials by exhaust method in particular
    Patent number: 8303835
    Abstract: Compositions useful for conferring a flame-retardant finish on polyester materials by means of an exhaust process comprise a triester of phosphoric acid, a polyester and an amine or ammonium salt as well as water.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: November 6, 2012
    Assignee: Huntsman Textile Effects (Germany) GmbH
    Inventors: Salman Dermeik, Karl-Heinz Lemmer, Reinhold Braun, Walter Nassl
  • COMPOSITION FOR TREATING FIBER MATERIALS
    Publication number: 20100044653
    Abstract: Compositions comprising triesters of phosphoric acid and polyesters based on carboxylic acid and aromatics-free alcohol are useful for treating fiber materials. Flame-retardant properties are bestowed on the fiber materials, for example woven fabrics comprising polyester, by the treatment.
    Type: Application
    Filed: December 18, 2007
    Publication date: February 25, 2010
    Inventors: Salman Dermeik, Karl-Heinz Lemmer, Reinhold Braun
  • PROCESS FOR THE FLAME-RETARDANT TREATMENT OF FIBER PRODUCTS
    Publication number: 20100000030
    Abstract: In the case of fiber products, flame-retardant properties can be achieved by applying a polyethylenimine and a phosphonic acid to the fiber products or to precursors thereof. The fiber products may be sheet-like textile structures in the form of woven fabrics or they may be yarns or fiberboards. The precursors of the fiber products may be aqueous fiber suspensions which are further processed to give paper or fiberboards.
    Type: Application
    Filed: March 2, 2006
    Publication date: January 7, 2010
    Applicant: Huntsman Textile Effects ( Germany ) GmbH
    Inventors: Salman Dermeik, Reinhold Braun, Karl-Heinz Lemmer, Martin Lung
  • PROCESS FOR THE FLAME-RETARDANT TREATMENT OF FIBER MATERIALS
    Publication number: 20090068369
    Abstract: In the case of fiber materials in the form of sheet-like textile structures or yarns, flame-retardant properties can be achieved by applying a polyethylenimine and a phosphonic acid to the fiber materials.
    Type: Application
    Filed: February 25, 2006
    Publication date: March 12, 2009
    Applicant: Huntsman Textile Effects (Germany) GmbH
    Inventors: Salman Dermeik, Reinhold Braun, Karl-Heinz Lemmer, Martin Lung
  • Process for the flame-retardant treatment of fiber products
    Publication number: 20070082139
    Abstract: In the case of fiber products which contain from 20 to 100% by weight of cellulose fibers, flame-retardant properties can be achieved by applying a polyethylenimine and a phosphonic acid to the fiber products or to precursors thereof. The precursors of the fiber products may be aqueous fiber suspensions which are further processed to give paper or fiberboards.
    Type: Application
    Filed: November 25, 2004
    Publication date: April 12, 2007
    Inventors: Salman Dermeik, Karl-Heinz Lemmer, Reinhold Braun
  • Flame-retardant compositions of methanephosphonic acid, boric acid and an organic base
    Patent number: 6981998
    Abstract: Compositions are described that are obtainable by preparing a mixture of methanephosphonic acid, boric acid, water and optionally urea and subsequently adding dicyandiamide and/or guanylurea to this mixture. The compositions thus obtained are useful for conferring a flame-retardant finish on fibrous materials, especially on woven fabrics composed of cellulosic fibers.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: January 3, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Salman Dermeik, Reinhold Braun, Karl-Heinz Lemmer
  • Flame-retardant compositions of methanephosphonic acid, boric acid and an organic base
    Publication number: 20050017222
    Abstract: Compositions are described that are obtainable by preparing a mixture of methanephosphonic acid, boric acid, water and optionally urea and subsequently adding dicyandiamide and/or guanylurea to this mixture. The compositions thus obtained are useful for conferring a flame-retardant finish on fibrous materials, especially on woven fabrics composed of cellulosic fibers.
    Type: Application
    Filed: November 12, 2002
    Publication date: January 27, 2005
    Inventors: Salman Dermeik, Reinhold Braun, karl-Heinz Lemmer
  • Process for the preparation of diesters of phosphonocarboxylic acid derivatives
    Patent number: 5648509
    Abstract: The addition of acid diesters of phosphorous acid onto alpha,beta-unsaturated carboxylic acid derivatives under basic catalysis is achieved with good yields if it is carried out in the presence of alkali metal alcoholates or phenolates and in the presence of halides, oxides or hydroxides of divalent metals. Co-use of these metal compounds allows relatively small mounts of metal alcoholates or phenolates to be used. The resulting reaction mixtures do not contain relatively large amounts of troublesome by-products.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: July 15, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Salman Dermeik, Martina Wanner, Karl-Heinz Lemmer, Reinhold Braun
  • Compositions comprising reaction products of phosphites, quinones and isocyanates
    Patent number: 5498740
    Abstract: Compositions which, in the form of aqueous dispersions or of solutions in organic solvents, are suitable for the treatment of fiber materials can be obtained by reaction of organic phosphites and quinones and subsequent reaction with mono-, di- or polyisocyanates. Flame-retardant properties having a good permanence are imparted, above all, to fabrics comprising polyester fibers by this procedure.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: March 12, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Salman Dermeik, Martina Wanner, Karl-Heinz Lemmer, Reinhold Braun