Mixer control system
Method of mixing and kneading control of a rubber kneader
Method of manufacturing a paint composite for magnetic films
Method of preparing kneaded mixture for magnetic coating material Patent #: 4946615
ApplicationNo. 714608 filed on 06/13/1991
US Classes:252/62.54, Synthetic resin252/62.53, With wax, bitumen, resin, or gum366/601, MOTOR CONTROL416/38Drive engine condition excluding shaft speed or torque
ExaminersPrimary: Johnson, Jerry D.
Attorney, Agent or Firm
International ClassesC04B 035/04
Foreign Application Priority Data1990-06-14 JP
AbstractA magnetic coating composition prepared by a method comprising a wetting step for wetting powder materials including a magnetic powder with a small amount of a solvent in a kneading machine having an agitation means in a closed container, a first kneading step comprising adding an amount of a binder resin and an amount of a solvent to a mixture from the wetting step and mixing and kneading it, a second kneading step comprising continuously adding the solvent till a consumed power of a kneading apparatus reaches maximum, a third kneading step comprising stopping the addition of the solvent at the maximum consumed power and further kneading the mixture, and a dilution step comprising gradually adding the solvent to the mixture while applying shear force, in which composition, the magnetic powder is highly dispersed and which provides a coating type magnetic recording medium having good properties.