Catalyst composition and process for di-, tri- and/or tetramerization of ethylene
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United States of America Patent
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Jan 28, 2014
Grant Date -
Jul 29, 2010
app pub date -
Jun 16, 2008
filing date -
Jul 11, 2007
priority date (Note) -
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Abstract
The present invention relates to a catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure (A) R1R2P—N(R3)—P(R4)—N(R5)—H or (B) R1R2P—N(R3)—P(R4)—N(R5)—PR6R7, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNPNP-unit is member of a ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution and a co-catalyst or activator.
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Patent Citation Ranking
- 1 Citation Count
- C07C Class
- 31.12 % this patent is cited more than
- 11 Age
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| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 28, 2025 |
