Patent classifications
C
CHEMISTRY; METALLURGY
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C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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C08F4/42
Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
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C08F4/44
selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
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C08F4/60
together with refractory metals, iron group metals, platinum group metals, manganese, rhenium; technetium; or compounds thereof
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C08F4/62
Refractory metals or compounds thereof
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C08F4/63
Pretreating the metal or compound covered by group C08F4/62 before the final contacting with the metal or compound covered by group C08F4/44
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C08F4/632
Pretreating with metals or metal-containing compounds
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C08F4/634
with magnesium or compounds thereof
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C08F4/634

Ziegler-Natta catalysts prepared from solid alkoxymagnesium halide supports
11478781 · 2022-10-25 · ·

Catalyst systems containing a titanium alkoxymagnesium halide supported catalyst component can be used for the polymerization of olefins. The catalyst can be prepared from a microcrystalline solid alkoxymagnesium halide support having a lattice spacing in the 5 nm to 15 nm range.