Patents Assigned to Cindu Chemie B.V.
  • Process for preparing binder pitches
    Patent number: 4176043
    Abstract: A process for preparing a binder pitch, in which a high-aromatic residual fraction from petroleum raw materials is mixed with a coal tar fraction in weight ratios of about 1:9 to 9:1 and heated, while during heating the mixture is kept in contact with a dehydrogenating agent, in particular an oxygen-containing gas.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: November 27, 1979
    Assignee: Cindu Chemie B.V.
    Inventor: Johannes N. van Eijk