Olefin polymerization catalyst feed methods and binary or EPDM process for its preparation

The present invention discloses a method of feeding a catalyst for olefin polymerization, and a binary or EPDM rubber and its preparation method. By the olefin polymerization catalyst feed method of the present invention, the catalyst can be fed in a steady volume flow into the reaction vessel for polymerization. Particularly in the preparation of the di- or EPDM, the feed through the catalyst for olefin polymerization method of the present invention is its catalyst feed, can be significantly reduced in the condensate di- or EPDM rubber content glue.