Process for preparing cycloolefin copolymers

Details Process for preparing cycloolefin copolymers Process for preparing cycloolefin copolymers

1995-05-22

1997-02-11

Zitomer, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526127, 526132, 526183, 526185, 526188, 526190, 526194, 526281, 526308, 526348, 526943, C08F 462, C08F23208

Patent

active

056022190

ABSTRACT:
Transparent cycloolefin copolymers having a high tensile strength are obtained by polymerization of a polycyclic olefin, ethylene and, if desired, an acyclic olefin and/or a monocylcic olefin in the presence of a catalyst system which comprises a cocatalyst and an asymmetrical metallocene compound of the formula ##STR1## in which R.sup.16 is cyclopentadienyl and R.sup.17 is indenyl.

REFERENCES:
patent: 5017714 (1991-05-01), Welborn, Jr.
patent: 5087677 (1992-02-01), Brekner et al.
patent: 5278264 (1994-01-01), Spaleck et al.

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