| abstract |
PROBLEM TO BE SOLVED: To provide a Ziegler-Natta catalyst for adjusting the MWD of a polyolefin, a production method, a method of using the same, and a polyolefin produced by using the Ziegler-Natta catalyst. In practice, such catalysts, in addition to retaining high activity and excellent fluff morphology, allow the use of this catalyst to regulate the MWD of the resulting polyolefin. |