Latent metallocene catalyst systems for olefin polymerization

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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C526S903000, C526S943000, C526S905000, C526S907000, C526S160000, C502S118000, C502S150000

Reexamination Certificate

active

07041757

ABSTRACT:
A metallocene catalyst may be temporarily and reversibly passivated by contact with an effective amount of an unsaturated hydrocarbon passivating compound.

REFERENCES:
patent: 4605810 (1986-08-01), Banks
patent: 5037908 (1991-08-01), Tachikawa et al.
patent: 5198511 (1993-03-01), Brown-Wensley et al.
patent: 6147026 (2000-11-01), Setiabudi et al.
patent: 6171995 (2001-01-01), Muhlebach et al.

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