C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/641
C08F 4/60 (2006.01) C08F 10/00 (2006.01) C08F 210/16 (2006.01) C08F 210/18 (2006.01)
Patent
CA 1136345
ABSTRACT OF THE DISCLOSURE In a process for copolymerizing ethylene with n-butene-1 with a catalyst comprising (A) a transition metal compound component supported on a solid carrier and (B) an organometallic compound component of a metal of Groups I to III of the periodic table, the improvement which comprises selectively hydrogenating a mixed C4 fraction containing 10% by weight or more of n-butene-1 which remains after the extraction of 1,3-butadiene from a C4 fraction of cracked hydrocarbons so that the resulting hydrogenated fraction contains 200 ppm by volume or less of 1,3- butadiene and n-butene-1 in an amount of at least 80% based on the amount of n-butene-1 contained in the mixed C4 fraction, using this hydrogenated fraction as the source of n-butene-1 in the copolymerization, and using as said organometallic compound component a non-acidic or low-acidic organometallic compound.
367360
Araki Masashi
Mashita Kentaro
Marks & Clerk
Sumitomo Chemical Co. Ltd.
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