# US 8,785,551 B2 · Catalyst composition comprising shuttling agent for ethylene multi-block copolymer formation

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- Number: US 8,785,551 B2
- Document ID: US8785551B2
- Status: Granted
- Kind: B2
- Application number: 12/962,800
- Filed: 2010-12-08
- Published: 2011-05-19
- Granted: 2014-07-22
- Earliest claimed: 2004-03-17
- Assignees: Dow Global Technologies LLC
- Applicants: Daniel J. Arriola; Edmund M. Carnahan; Yunwa Wilson Cheung; David D. Devore; David D. Graf; Phillip D. Hustad; Roger L. Kuhlman; Colin Li Pi Shan; Benjamin C. Poon; Gordon R. Roof; James C. Stevens; Pamela J. Stirn; Timothy T. Wenzel
- Inventors: Daniel J. Arriola; Edmund M. Carnahan; Yunwa Wilson Cheung; David D. Devore; David D. Graf; Phillip D. Hustad; Roger L. Kuhlman; Colin Li Pi Shan; Benjamin C. Poon; Gordon R. Roof; James C. Stevens; Pamela J. Stirn; Timothy T. Wenzel
- Web page: https://patentgrep.com/patent/US8785551B2

## CPC

- B32B 27/327: {comprising polyolefins obtained by a metallocene or single-site catalyst}
- B32B 27/06: as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a layer of a particular substance B32B9/045; next to a bituminous or tarry layer B32B11/046; next to a water setting substance layer B32B13/12; next to a metal layer B32B15/08; next to a glass layer B32B17/10; next to a layer formed of natural mineral fibres or particles B32B19/045; next to a wood layer B32B21/08; next to a cellulosic plastic layer B32B23/08; next to a natural or synthetic rubber layer B32B25/08)}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- C08F 10/00: Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F 10/14: Monomers containing five or more carbon atoms
- C08F 210/14: Monomers containing five or more carbon atoms
- C08F 210/16: Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
- C08F 295/00: Macromolecular compounds obtained by polymerisation using successively different catalyst types without deactivating the intermediate polymer
- C08F 297/00: Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
- C08F 297/08: polymerising mono-olefins
- C08F 297/083: {the monomers being ethylene or propylene}
- C08F 297/086: {the block polymer contains at least three blocks}
- C08L 23/0815: {with aliphatic 1-olefins containing one carbon-to-carbon double bond}
- C08L 23/10: Homopolymers or copolymers of propene
- C08L 53/00: Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L 53/005: {Modified block copolymers}
- C08F 4/659: Component covered by group C08F4/64 containing a transition metal-carbon bond {(C08F4/64003 - C08F4/64196 take precedence)}
- 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 4/65925: {two cyclopentadienyl rings being mutually non-bridged}
- C08F 4/65927: {two cyclopentadienyl rings being mutually bridged}
- C08F 110/02: Ethene
- C08F 2410/01: Additive used together with the catalyst, excluding compounds containing Al or B
- C08F 2410/04: Dual catalyst, i.e. use of two different catalysts, where none of the catalysts is a metallocene
- C08F 2420/02: Cp or analog bridged to a non-Cp X anionic donor
- C08L 23/02: not modified by chemical after-treatment
- C08L 23/06: Polyethylene
- C08L 23/0853: Ethylene vinyl acetate copolymers
- Y10T 428/24942: including components having same physical characteristic in differing degree
- Y10T 428/24992: Density or compression of components
- Y10T 428/2826: Synthetic resin or polymer
- Y10T 428/31573: Next to addition polymer of ethylenically unsaturated monomer
- Y10T 428/31587: Hydrocarbon polymer [polyethylene, polybutadiene, etc.]
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.

## Claims

### Claim 1

An ethylene/α-olefin multi-block interpolymer comprising in polymerized form at least 50 mole percent ethylene and one or more copolymerizable α-olefin comonomers, said interpolymer containing therein two or more blocks differing in comonomer content, crystallinity, density, melting point or glass transition temperature;
the interpolymer comprising from 3.7 ppm to 11.0 ppm of a first Group IVB metal and a second Group IVB metal.

### Claim 2 (depends on 1)

The multi-block interpolymer of claim 1 wherein the first Group IVB metal is hafnium and the second Group IVB metal is zirconium.

### Claim 3

An ethylene/α-olefin multi-block interpolymer comprising in polymerized form at least 50 mole percent ethylene and having a single melting point and the interpolymer comprising:
at least three metals.

### Claim 4 (depends on 3)

The ethylene/α-olefin block interpolymer of claim 3 having a Mw/Mn from 1.7 to 3.5, at least one melting point, Tm, in degrees Celsius and density, d*, in grams/cubic centimeter, wherein the numerical values of the variables correspond to the relationship:
Tm>−2002.9+4538.5(d*)−2422.2(d*)2.

### Claim 5 (depends on 4)

The ethylene/α-olefin block interpolymer of claim 4 comprising ethylene in polymerized form and one or more copolymerizable comonomers, said interpolymer containing therein two or more blocks differing in comonomer content, crystallinity, density, melting point or glass transition temperature.

### Claim 6 (depends on 3)

The ethylene/α-olefin block interpolymer of claim 3 comprising a first Group IVB metal; and a second Group IVB metal.

### Claim 7 (depends on 3)

The ethylene/α-olefin block interpolymer of claim 3 comprising hafnium.

### Claim 8 (depends on 3)

The ethylene/α-olefin block interpolymer of claim 3 comprising zinc.