Process for preparing cycloolefin polymer

Details Process for preparing cycloolefin polymer Process for preparing cycloolefin polymer

1996-10-15

1998-03-31

Zitomer, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502103, 502104, 502117, 502232, 502242, 526126, 526127, 526160, 526281, 526308, 526348, 5263482, 5263483, C08F 464, C08F 3204, C08F 462

Patent

active

057339910

ABSTRACT:
Cycloolefin polymers having a high viscosity number are obtained by polymerization of a polycyclic olefin and, if desired, an acyclic olefin and/or a monocyclic olefin in the presence of a catalyst system which comprises an aluminoxane and a metallocene compound of the formula ##STR1## in which R.sup.16 is fluorenyl or indenyl and R.sup.17 is cyclopentadienyl and the bridge R.sup.18 contains silicon.

REFERENCES:
patent: 4892851 (1990-01-01), Ewen
patent: 5087677 (1992-02-01), Brekner et al.

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