Refractory metals or compounds thereof

Full Title

Polymerisation catalysts > Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors > selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides > together with refractory metals, iron group metals, platinum group metals, manganese, technetium, rhenium, or compounds thereof > Refractory metals or compounds thereof

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON

Subclass:

MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

Child Classifications

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• C08F 4/622 Component covered by group with an organo-aluminium compound
• C08F 4/623 Component covered by group with a metal or compound covered by group other than an organo-aluminium compound
• C08F 4/625 Component covered by group with a metal or compound covered by group , not provided for in a single group of groups or
• C08F 4/626 Catalysts comprising at least two different metals, in metallic form or as compounds thereof, in addition to the component covered by group
• C08F 4/627 Catalysts containing a specific non-metal or metal-free compound
• C08F 4/63 Pretreating the metal or compound covered by group before the final contacting with the metal or compound covered by group
• C08F 4/639 Component covered by group containing a transition metal-carbon bond
• C08F 4/64 Titanium, zirconium, hafnium, or compounds thereof
• C08F 4/68 Vanadium, niobium, tantalum, or compounds thereof
• C08F 4/69 Chromium, molybdenum, tungsten or compounds thereof