Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2006-05-23
2006-05-23
Choi, Ling-Sui (Department: 1713)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S125000, C502S103000, C502S118000, C502S127000, C526S124300, C526S142000, C526S352000, C526S125100, C526S119000
Reexamination Certificate
active
07049263
ABSTRACT:
There are provided a process for producing a catalyst for α-olefin polymerization, which comprises the step of contacting (1) a solid catalyst component having Ti, Mg and a halogen as essential components, (2) an organoaluminum compound and (3) a compound having a —C—O—C—O—C— bond group in a closed ring structure with one another; and a process for producing an α-olefin polymer, which comprises the step of homopolymerizing or copolymerizing an α-olefin in the presence of a catalyst for α-olefin polymerization produced by the above process.
REFERENCES:
patent: 1 138 701 (2001-10-01), None
patent: 1 138 701 (2001-10-01), None
Choi Ling-Sui
Sumitomo Chemical Company Limited
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