With Organic Material Patents (Class 252/186.29)
  • Use of oxime esters as activators for inorganic peroxy compounds
    Patent number: 6258295
    Abstract: Use of mono- and bisoxime esters I where L1 is an oxime moiety of the formula  where R1 and R2 are hydrogen or organic radicals and Z1 are alkylene groups, L2 is a second oxime moiety L1 or an organic radical attached via an O or N atom, A is a chemical bond or a linker, and m is 0 or 1, as activators for inorganic peroxy compounds, in particular as cold bleach activators or optical brighteners in detergents, cleaners and bleaches and in disinfectants.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: July 10, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Wehlage, Dieter Boeckh, Elisabeth Kappes, Alfred Oftring, Birgit Potthoff-Karl, Werner Bertleff
  • Alkaline earth metal peroxide product
    Patent number: 6193776
    Abstract: A homogeneous calcium/magnesium peroxide, its manufacture and use are described. The new calcium/magnesium peroxide is suitable in particular as an additive used as source of oxygen and acid buffer, e.g. in the application, processing, treatment and/or disposal of various biomaterials.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: February 27, 2001
    Assignee: Solvay Interox GmbH
    Inventors: Werner Doetsch, Otto Caspar