Olefin polymerization catalyst and polyolefin

Details Olefin polymerization catalyst and polyolefin Olefin polymerization catalyst and polyolefin

1995-08-21

1998-07-14

Nagumo, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526119, 5261245, 526943, 502108, 502111, 502114, 502120, 502132, 502117, C08F 4645

Patent

active

057805628

ABSTRACT:
A novel olefin polymerization catalyst is obtained by contacting the following components (1) to (5) with one another: (1) a compound represented by the general formula Me.sup.1 R.sup.1.sub.p (OR.sup.2).sub.q X.sup.1.sub.4-p-q, (2) a compound represented by the general formula Me.sup.2 R.sup.3.sub.m (OR.sup.4).sub.n X.sup.2.sub.z-m-n, (3) an organocyclic compound having conjugated double bonds; (4) a modified organoaluminum compound having Al--O--Al bond(s); and (5) a silicon oxide and/or an aluminum oxide both having characteristic average particle diameter, specific surface area, volume of pores ranging in pore radius from 18 to 1,000 Angstroms, apparent specific gravity not lower than 0.32, and proportion of 50 .mu.m or smaller particles.

REFERENCES:
patent: 4849390 (1989-07-01), Sano et al.
patent: 5189000 (1993-02-01), Masi et al.
patent: 5514634 (1996-05-01), Hagerty et al.
patent: 5529965 (1996-06-01), Chang
patent: 5531071 (1996-07-01), Kataoka et al.
patent: 5604170 (1997-02-01), Sano et al.

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