Substituted polycyclic cyclopentadienes and method for their...

Details Substituted polycyclic cyclopentadienes and method for their... Substituted polycyclic cyclopentadienes and method for their...

2005-08-16

2005-08-16

Lu, Caixia (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S134000, C526S165000, C526S943000, C556S053000, C502S103000, C502S152000, C502S154000

Reexamination Certificate

active

06930158

ABSTRACT:
New polycyclic cyclopentadiene compounds having the formula (II) wherein the various substituents and symbols R1, R2, R3, R4, R5, R6, R7, Z1 and Z2 and “n” have the meaning specified in the description. These compounds can form metallocene complexes with transition metals, which have shown unusual properties in the (co)polymerization of ethylene and alpha-olefins in general.

REFERENCES:
patent: 0 849 273 (1998-06-01), None
Chemical Abstracts, vol. 97, No. 21, Abstract No. 181816s, Nov. 22, 1982.

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