Patents Assigned to Silica Gel Gesellschaft mbH Adsorptions-Technik, Apparatebau
  • Magnetic liquid compositions
    Patent number: 5160725
    Abstract: Magnetic liquid compositions are prepared from physiologically tolerated dispersions of stabilized superparamegnetic particles in water or aqueous salt solution and reactive stabilizer substances chemically bonded over phosphate, phosphonate or carboxylate groups to the surface of the superparamagnetic particles. The reactive stabilizer substances stabilize and chemically bond diagnostic and pharmacologically active substances.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: November 3, 1992
    Assignee: Silica Gel Gesellschaft mbH Adsorptions-Technik, Apparatebau
    Inventor: Herbert Pilgrimm