C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 4/50 (2006.01) C08F 4/643 (2006.01) C08F 10/00 (2006.01)
Patent
CA 2111192
2111192 9300368 PCTABS00019 A novel catalyst support and a method for preparation thereof, characterized by the presence of selected amounts of a hydrocarbon soluble magnesium-containing compound applied to the support relative to solvent, wherein a surface uniformly and essentially continuously moistened with the solvated magnesium compound is achieved in a condition of incipient precipitation to permit the formation of a regular essentially continuous distribution of the magnesium compound onto and conforming to the support material. The drying process under these conditions is effective in maintaining to a high degree the effective surface area and pore volume of the material. The support containing the adsorbed magnesium in then dried in a controlled manner to essential incipient wetness conditions providing a regular spatial distribution of stacked reticular magnesium values at a level of one to five molecular monolayers on the support. A representative process for polymerizing or copolymerizing olefins providing stereospecific polymers such as propylene is disclosed.
Buehler Charles K.
Masino Albert P.
Menon Raghu
Mcfadden Fincham
Quantum Chemical Corporation
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