Polymerization processes

Details Polymerization processes Polymerization processes

1995-05-31

1996-02-20

Lipman, Bernard

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526160, C08F 842

Patent

active

054929857

ABSTRACT:
A polymer bound ligand represented by the formula QM(R).sub.m and process for preparing same are provided, wherein Q is a polystyrene, M is Si, C, Ge, Sn, P, or N, each R is a that at least one R is a cyclopentadienyl-type compound, and m is 2 or 3, said process comprising reacting a metallated polystyrene and an organohalide compound, wherein the polystyrene is metallated with an alkali metal, and wherein said organohalide compound is represented by the formula XM(R).sub.m wherein X is a halide. Other aspects of the present invention include a polymer bound metallocene represented by the formula QM(R).sub.m ZY.sub.n and a process for preparing same, wherein Z is a transition metal, Y is a halide, methyl, hydrogen, or a cyciopentadienyl-type group, and n is 2 or 3. Other aspects of the present invention include a catalyst system comprising the polymer bound metallocene and an organoaluminoxane, a method for preparing same, and a polymerization process employing the catalyst system.

REFERENCES:
patent: 4882384 (1989-11-01), Willis et al.
patent: 4985576 (1991-01-01), Rohrmann et al.
patent: 5049535 (1991-09-01), Resconi et al.
patent: 5084534 (1992-01-01), Welborn, Jr. et al.
patent: 5145819 (1992-09-01), Winter et al.
patent: 5153157 (1992-10-01), Hlatky et al.
patent: 5362824 (1994-11-01), Furtek et al.
J. Am. Chem. Soc., 95, pp. 2373-2375 (1973) "Activation of Homogenous Catalysts by Polymer Attachment", Gruggs et al.
J. Am. Chem. Soc., 73, pp. 5135-5138 (Nov. 1951), "Silylindenes and Silylindans", Sommer et al.
J. Am. Chem. Soc., 95:8, pp. 2128-2132 (Apr. 16, 1975), "Polystyrene Attached Titanocene Species, Preparation and Reactions", Bonds et al.
J. Org. Chem., 41, No. 24, pp. 3877-3882 (1976), Farrall et al.
Chem. Abstracts 92, (17):146837z, "Preparation and Structural Studies of Fluorenylsilane with Functional Groups at Silicon", Rengstl et al.
Inorganic Chemistry, vol. 24, pp. 2539-2546 (1985) "Synthesis, Structural Characterization, and Electrochemistry of Metallocenophane Complexes, [Si(alkyl).sub.2 ]MCl.sub.2 (C.sub.5 H.sub.4).sub.2 M,=Ti, Zr", Bajgur et al.
Organometallics, vol. 3, pp. 1470-1478 (1984), "Zirconocene-.eta..sup.4 -1,3-pentadiene Complex and its Higher Homologues, A new Synthetic Method Involving .delta.-.pi. Rearrangement of the Hydrido-2,4-pentadienylzirconium Species", Yasuda et al.
J. of Organometallic Chemistry, vol. 369, pp. 357-379 (1989), "ansa-Metallocene Derivatives, XVII. Racemic and Meso Diasteromers of Group IV Metallocene Derivatives with Symmetrically Substituted, Dimethylsilanediylbridged Ligand Frameworks. Crystal Structure of R,S-Me.sub.2 Si(3-t-Bu-5-MeC.sub.5 H.sub.2)ZrCl.sub.2 ", Wiesenfeldt et al.

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