Patents Represented by Attorney, Agent or Law Firm Kevin T. Mausfield
  • Liquid fluorescent whitening agent formulation
    Patent number: 6660705
    Abstract: A liquid fluorescent whitening agent formulation comprising: a) 10 to 20% of a compound of formula (1) in which R1represents hydrogen, 1-5 C-alkyl, 1-5 C-alkoxy or halogen, M represents hydrogen, an alkaline- or alkaline earth-metal, or ammonium; b) 20 to 50% of a non-ionic surfactant; c) 20 to 40% of a polyhydroxy compound; d) 0 to 20% of a glycol compound and e) 1 to 50% water and use thereof for improving the whiteness aspect of detergents.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: December 9, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Rainer Hans Traber, Helena Dbaly, Josef Zelger