Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2004-09-23
2008-07-22
Marcheschi, Michael A (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S224000, C502S226000, C502S227000, C502S229000, C502S231000, C502S103000, C502S115000, C502S117000, C428S403000
Reexamination Certificate
active
07402546
ABSTRACT:
The invention relates to supports comprising inorganic oxide particles coated with magnesium chloride and a method for making them. The inorganic oxide has a mean particle diameter of less than 5 microns and is used as a seed to crystallize magnesium chloride from solution. The magnesium chloride-coated inorganic oxide is useful for supporting transition metal compounds; the supported transition metal compounds are used as catalysts for polymerizing olefins.
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Mishakov, et al., “Nanocrystalline MgO As A Dehydrohalogenation Catalyst”,Journal of Catalysis, 206, 40-48 (2002).
N. Kubota et al.,Powder Technology 121(2001) 31.
Kist Edward D.
Klendworth Douglas D.
Reinking Mark K.
Equistar Chemicals LP
Marcheschi Michael A
Schuchardt Jonathan L.
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