# US 5,705,584 A · Propylene homopolymer and propylene copolymer prepared using novel bridged indenyl-containing metallocene

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- Number: US 5,705,584 A
- Document ID: US5705584A
- Status: Granted
- Kind: A
- Application number: 08/477,647
- Filed: 1995-06-07
- Granted: 1998-01-06
- Earliest claimed: 1993-06-07
- Assignees: Mitsui Petrochemical Industries, Ltd.
- Inventors: Daisuke Fukuoka; Takashi Tashiro; Koji Kawaai; Takashi Ueda; Yoshihisa Kiso; Akira Mizuno; Masaaki Kawasaki; Masaaki Itoh; Mikio Hashimoto
- Web page: https://patentgrep.com/patent/US5705584A

## CPC

- C08F 210/16: Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
- C07C 45/46: Friedel-Crafts reactions
- C07C 49/67: having two rings, e.g. tetralones
- C07C 49/697: containing six-membered aromatic rings
- C07F 17/00: Metallocenes
- C08F 10/00: Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F 10/06: Propene
- C08F 110/06: Propene
- C08F 4/61912: {in combination with an organoaluminium compound}
- C08F 4/61927: {two cyclopentadienyl rings being mutually bridged}
- C08F 4/65908: {in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+}
- C08F 4/65912: {in combination with an organoaluminium compound}
- C08F 4/65916: {supported on a carrier, e.g. silica, MgCl2, polymer}
- C08F 4/65927: {two cyclopentadienyl rings being mutually bridged}
- C08F 210/06: Propene
- Y10S 526/904: Monomer polymerized in presence of transition metal containing catalyst at least part of which is supported on a polymer, e.g. prepolymerized catalysts
- Y10S 526/943: Polymerization with metallocene catalysts
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

The novel propylene homopolymer and copolymer produced by using a catalyst which is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 is a hydrocarbon group of 2 to 6 carbon atoms, R.sup.2 is an aryl group of 6 to 16 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom or the like; and Y is a divalent hydrocarbon group, a divalent silicon-containing group or the like.

## Claims

### Claim 1

A propylene homopolymer obtained by polymerizing propylene in the presence of an olefin polymerization catalyst comprising:
(A) a transition metal compound catalyst component represented by the following formula (I): ##STR22## wherein M is zirconium,
R.sup.1 is an alkyl group of 2 to 4 carbon atoms,
R.sup.2 is an aryl group selected from the group consisting of phenyl, naphthyl, anthracenyl and phenanthryl,
X.sup.1 and X.sup.2 are each a hydrogen atom, a halogen atom, a hydrocarbon group of 1 to 20 carbon atoms, a halogenated hydrocarbon group of 1 to 20 carbon atoms, an oxygen-containing group or a sulfur-containing group; and
Y is a divalent silicon-containing group selected from the group consisting of alkylsilylene, alkylarysilylene and arylsilylene;
and
(B) at least one compound selected from the group consisting of
(B-1) an organoaluminum oxy-compound, and
(B-2) a compound which reacts with the transition metal compound to form an ion pair.

### Claim 2

A propylene copolymer containing not less than 50% by mol of propylene unit, which is obtained by copolymerizing propylene and an .alpha.-olefin selected from the group consisting of ethylene and .alpha.-olefins of 4 to 20 carbon atoms in the presence of an olefin polymerization catalyst comprising:
(A) a transition metal compound catalyst component represented by the following formula (I): ##STR23## wherein M is zirconium,
R.sup.1 is an alkyl group of 2 to 4 carbon atoms,
R.sup.2 is an aryl group selected from the group consisting of phenyl, naphthyl, anthracenyl and phenanthryl, X.sup.1 and X.sup.2 are each a hydrogen atom, a halogen atom, a hydrocarbon group of 1 to 20 carbon atoms, a halogenated hydrocarbon group of 1 to 20 carbon atoms, an oxygen-containing group or a sulfur-containing group; and
Y is a divalent silicon-containing group selected from the group consisting of alkylsilylene, alkylarylsilylene and arylsilylene;
and
(B) at least one compound selected from the group consisting of
(B-1) an organoaluminum oxy-compound, and
(B-2) a compound which reacts with the transition metal compound to form an ion pair.