Metallocene compound, catalyst for olefin polymer, method for producing olefin polymer, and olefin polymer

Patent metadata

Field	Value
Publication number	US-9783625-B2
Application number	US-201414770479-A
Country	US
Kind code	B2
Filing date	Feb 26, 2014
Priority date	Feb 27, 2013
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

The invention provides a specific metallocene compound and an olefin polymerization catalyst for use for a catalyst for producing an olefin polymer having a sufficiently high molecular weight while maintaining excellent copolymerizability at a polymerization temperature and under polymerization conditions industrially advantageous in polymerization of an olefin such as ethylene or the like, and provides a method for producing an olefin polymer using the catalyst.

First claim

The invention claimed is:

1. A metallocene compound represented by the following formula [I]:

in which:
M represents Ti, Zr, or Hf;
X 1 and X 2 are the same or different, each representing a hydrogen atom, an alkyl group having from 1 to 10 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, an aryl group having from 6 to 20 carbon atoms, an aryloxy group having from 6 to 10 carbon atoms, an alkenyl group having from 2 to 10 carbon atoms, an arylalkyl group having from 7 to 40 carbon atoms, an alkylaryl group having from 7 to 40 carbon atoms, an arylalkenyl group having from 8 to 40 carbon atoms, an alkyl group having from 1 to 20 carbon atoms and substituted with a silyl group having a hydrocarbon group having from 1 to 6 carbon atoms, a substituted amino group having from 1 to 10 carbon atoms, a group OH, or a halogen atom;
R 1 to R 9 and R 11 to R 19 are the same or different, each representing a hydrogen atom, a halogen atom, an alkyl group having from 1 to 10 carbon atoms, a halogenoalkyl group having from 1 to 10 carbon atoms, an aryl group having from 6 to 20 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, a silyl group having a hydrocarbon group having from 1 to 6 carbon atoms, an alkyl group having from 1 to 20 carbon atoms and substituted with a silyl group having a hydrocarbon group having from 1 to 6 carbon atoms, a group —NR 21 2 , a group —SR 21 , a group —OSiR 21 3 , or a group —PR 21 2 , in which R 21 's are the same or different, each representing a halogen atom, an alkyl group having from 1 to 10 carbon atom or an aryl group having from 6 to 20 carbon atoms, the neighboring groups of R 1 to R 9 and R 11 to R 19 optionally form one or more aromatic rings or aliphatic rings along with the atom bonding them, or R 4 and R 5 , or R 4 and R 9 , or R 14 and R 15 , or R 14 and R 19 optionally form one aromatic ring or aliphatic ring along with the atom bonding them;
R 10 and R 20 are the same or different, each representing an alkyl group having from 1 to 10 carbon atoms, a fluoroalkyl group having from 1 to 10 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, an aryl group having from 6 to 20 carbon atoms, a fluoroaryl group having from 6 to 10 carbon atoms, an aryloxy group having from 6 to 10 carbon atoms, an alkenyl group having from 2 to 10 carbon atoms, an arylalkyl group having from 7 to 40 carbon atoms, an alkylaryl group having from 7 to 40 carbon atoms, or an arylalkenyl group having from 8 to 40 carbon atoms, provided that R 10 and R 20 form one or more rings along with the atom bonding them.

2. The metallocene compound according to claim 1 , wherein R 5 to R 9 and R 15 to R 19 are the same or different, each representing a hydrogen atom, a halogen atom, an alkyl group having from 1 to 10 carbon atoms, a halogenoalkyl group having from 1 to 10 carbon atoms, an aryl group having from 6 to 10 carbon atoms, a group —NR 21 2 , a group —SR 21 , a group —OSiR 21 3 , or a group —PR 21 2 , in which R 21 's are the same or different, each representing a halogen atom, an alkyl group having from 1 to 10 carbon atom or an aryl group having from 6 to 10 carbon atoms, and all of R 5 to R 9 and R 15 to R 19 are not hydrogen atoms at the same time.

3. The metallocene compound according to claim 1 , wherein R 10 and R 20 are the same or different, each representing a halogen atom, an alkyl group having from 1 to 10 carbon atoms, a fluoroalkyl group having from 1 to 10 carbon atoms, an aryl group having from 7 to 10 carbon atoms, a fluoroaryl group having from 6 to 10 carbon atoms, an alkenyl group having from 2 to 10 carbon atoms, an arylalkyl group having from 7 to 40 carbon atoms, an alkylaryl group having from 7 to 40 carbon atoms or an arylalkenyl group having from 8 to 40 carbon atoms, provided that the total of the carbon atoms that R 10 and R 20 contain is 2 or more, and R 10 and R 20 form one or more rings along with the atom bonding them.

4. The metallocene compound according to claim 1 , wherein the ring formed by R 10 and R 20 is a 4-membered ring or a 5-membered ring.

5. The metallocene compound according to claim 1 , wherein M is Hf.

Assignees

• Japan Polyethylene Corp

Inventors

• Itagaki Koji
• Sakuragi Tsutomu
• Takahashi Takayoshi

Classifications

• C07F17/00 Primary

  Metallocenes · CPC title

• C08F4/65927

  two cyclopentadienyl rings being mutually bridged · CPC title

• C08F10/00

  Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond · CPC title

• C08F210/16 Primary

  Copolymers of ethene with alpha-alkenes, e.g. EP rubbers · CPC title

• C08F4/6592

  containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring · CPC title