Preparation of supported silyl-capped silica-bound anion...

Details Preparation of supported silyl-capped silica-bound anion... Preparation of supported silyl-capped silica-bound anion...

2008-06-23

2010-12-07

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

active

07847038

ABSTRACT:
A method for the preparation of olefin polymerization catalysts that are the reaction products of the catalytic reaction of surface hydroxyls of a support with a trialkyl silane to afford hydrogen and the corresponding surface bound alkyl silyl ether and at the same time with a strong Lewis acid which support is converted to a silica bound anion that in a second step is fully converted by reaction with QM2to the desired catalyst. Catalyst compositions are disclosed herein. Processes disclosed herein include processes for the polymerization of olefinically unsaturated monomers comprising contacting a plurality of one or more of the monomers with the catalyst.

REFERENCES:
patent: 5643847 (1997-07-01), Walzer, Jr.
patent: 5939347 (1999-08-01), Ward et al.
patent: 6087293 (2000-07-01), Carnahan et al.
patent: 6184171 (2001-02-01), Shih
patent: 6433111 (2002-08-01), Kristen et al.
patent: 6903148 (2005-06-01), Suzuki et al.
patent: 2005/0070675 (2005-03-01), Wang
patent: 199 43 936 (2000-03-01), None
patent: WO00/04059 (2000-01-01), None
Piers, W.E., et al., “B(C6F5)3-Catalyzed Silation of Alcohols: A Mild, General Method for Synthesis of Silyl Ethers” Journal of Organic Chemistry, 1999, vol. 64 pp. 4887-4892.

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