Patents by Inventor Hauke Rohwer

Hauke Rohwer 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).

  • Publication number: 20060197060
    Abstract: The invention relates to novel bis(triazinylamino)stilbenes which are suitable as UV absorbers and fluorescent whiteners for textile materials and also bring about an increase in the treated textile material.
    Type: Application
    Filed: August 11, 2004
    Publication date: September 7, 2006
    Inventors: Goetz Scheffler, Hauke Rohwer, Rene Schlatter, Robert Hochberg
  • Publication number: 20050106114
    Abstract: A process for improving the sun protection factor (SPF) of cellulosic fibre materials and blends thereof, which comprises contacting said materials with at least one compound of the formula (1) according to claim 1.
    Type: Application
    Filed: February 11, 2003
    Publication date: May 19, 2005
    Inventors: Georges Metzger, Jean-Jacques Donze, Hans Kramer, Serge Hauger, Volker Papendick, Michael Milde, Ted Deisenroth, Rainer Traber, Ullrich Menge, Hauke Rohwer
  • Publication number: 20050039266
    Abstract: The present invention relates to a method of reducing dye loss or dye transfer from textile fibre materials, especially in the household sector, and to the novel particulate compositions used in that method, especially granules, comprising a dye fixative and a carrier, and to washing and softener compositions comprising such granules.
    Type: Application
    Filed: December 27, 2002
    Publication date: February 24, 2005
    Inventors: Petr Kvita, Ullrich Menge, Hauke Rohwer, Pierre Dreyer, Elke Haiss, Josiane Kielwasser, Barbara Weber, Katrin Bahn
  • Publication number: 20040111805
    Abstract: Disclosed is a fabric rinse composition comprising a) 0.1 to 10% by weight of a UV absorber of formula(1), wherein A is a radical of formula (1a); B is a radical of formula (1c); (1d); (1e); (1f), (1g); (1h); (1i); (1k); (1l); or (1m); R1, R2, R3, R4, R5 and R6 are each independently of the others hydrogen, C1-C18alkyl; C5-C7-cycloalkyl; halogen; R9 is hydrogen, C1-C12alkyl; or C5-C7cycloalkyl; R7, R8 and R10 are each independently of the others hydrogen, C1-C12alkyl, C5-C7cycloalkyl, C1-C12hydroxyalkyl; X is halogen; a radical of formula (1s); or (1u); sulfate, phosphate, lactate, citrate, tartrate; R11 is C1-C12alkyl; C5-C7cycloalkyl or phenyl: x is from 0 to 10; and y is from 1 to 20; b) 5 to 25% by weight, based on the total weight of the composition of a fabric softener agent; and c) the remainder being substantially water.
    Type: Application
    Filed: September 24, 2003
    Publication date: June 17, 2004
    Inventors: Thomas Ehlis, Robert Hochberg, Hauke Rohwer
  • Publication number: 20040103482
    Abstract: Disclosed is a fabric rise composition comprising a) 0.
    Type: Application
    Filed: September 24, 2003
    Publication date: June 3, 2004
    Inventors: Robert Hochberg, Hauke Rohwer, Thomas Ehlis
  • Publication number: 20040078901
    Abstract: Disclosed is a fabric rinse composition comprising a) 0.1 to 10% by weight of a UV absorber selected from a hydroxyaryl-1, 3, 5-triazine of the formula (I), wherein R1 is hydrogen; c1-c4-Alkoxy; or halogen; R2 is mono-C1-C4 alkylamino; a radical of the formula (I′); X is C2-C4 alkylen; Y1, Y2 independently from each other are C1-C4 alkyl or C1-C4 alkyl which is substituted by halogen, cyano hydroxy or C1-C4 alkoxy; or Y1 and Y2 or Y1 and Y3 together with the nitrogen atom form a 5- to 7-membered heterocycle; Y3 is hydrogene; C1-C4 alkyl; C3-C4 alkenyl; or C1-C4 alkyl, C3-C4 alkenyl which is substituted by cyano, hydroxy, C1-C4 alkoxy, phenyl or C1-C4 alkoxycarbonyl; or Y1, Y2 and Y3 together with the binding nitrogen atom form a pyrrolidine, piperidine or morpholine radical; A is the counter ion; b) 5 to 25% by weight, based on the total weight of the composition of a fabric care ingredient; and c) the remainder being substantially water.
    Type: Application
    Filed: September 23, 2003
    Publication date: April 29, 2004
    Inventors: Robert Hochberg, Hauke Rohwer
  • Publication number: 20040034938
    Abstract: The present invention relates to a method for reducing dye loss or dye transfer from textile fibre materials or leather in the domestic sector, which comprises treating the textile fibre materials or the leather with a dye-fixing agent based on basic polycondensation products of an amine of formula (1) and a cyanamide, which polycondensation products are completely or partially neutaalised with an inorganic or organic acid, R1, R2, R3 and R4 each independently of the others being hydrogen or alkyl that is unsubstituted or substituted by amino, hydroxy, cyano or by C1-C4 alkoxy and A being alkylene optionally substituted or interrupted by one or more hereto atoms. The present invention relates also to new formulations comprising the dye-fixing agent and to new dye-fixing agents.
    Type: Application
    Filed: December 31, 2002
    Publication date: February 26, 2004
    Inventors: Hauke Rohwer, Mario Dubini, Petr Kvita, Rolf Kuratli