Patents by Inventor Volker Papendick

Volker Papendick 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).

  • Mixtures of fluorescent whitening agents
    Patent number: 7497971
    Abstract: The present invention relates to a mixture of fluorescent whitening agents comprising 11 to 20% by weight of a compound of formula (1), and 80 to 89% by weight of a compound of formula (2), wherein R1 denotes hydrogen, C1-C6alkyl, C5-C14aryl or C6-C24aralkyl and X is a bivalent radical of formula (3), (4) or (5) compositions containing the mixture and the use of the compositions for whitening synthetic fibers, in particular, polyester.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: March 3, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jean-Jacques Donzé, Marie Meyberger, Michael Milde, Volker Papendick, Josef Zelger
  • Process for improving the sun protection factor of cellulosic fibre material
    Patent number: 7425222
    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) in which M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; R1 and R1? independently of each other are hydrogen, hydroxy, optionally substituted alkyl, 4-morpholinyl, —NH—R3, —N(R3)2 or —O—R3, wherein R3is optionally substituted alkyl or optionally substituted aryl, R2 is a group of formula (2) wherein X is —O— or —NH— and R4 is C1-C4-alkyl which carries at least one hydrophilic substituent and R2? has the meaning of R1 or R2.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: September 16, 2008
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Georges Metzger, Jean-Jacques Donzé, Hans Kramer, Serge Hauger, Volker Papendick, Michael Milde, Ted Deisenroth, Rainer Hans Traber, Ullrich Menge, Hauke Rohwer
  • Mixtures of fluorescent whitening agents
    Publication number: 20060048309
    Abstract: The present invention relates to a mixture of fluorescent whitening agents comprising 11 to 20% by weight of a compound of formula (1), and 80 to 89% by weight of a compound of formula (2), wherein R1 denotes hydrogen, C1-C6alkyl, C5-C14aryl or C6-C24aralkyl and X is a bivalent radical of formula (3), (4) or (5) compositions containing the mixture and the use of the compositions for whitening synthetic fibres, in particular, polyester.
    Type: Application
    Filed: December 1, 2003
    Publication date: March 9, 2006
    Inventors: Jean-Jacques Donze, Marie Meyberger, Michael Milde, Volker Papendick, Josef Zelger
  • Process for improving the sun protection factor of cellulosic fibre material
    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