Ethylene-based polymers

Patent metadata

Field	Value
Publication number	US-10239974-B2
Application number	US-201515311549-A
Country	US
Kind code	B2
Filing date	Jun 29, 2015
Priority date	Jun 30, 2014
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

The invention provides an ethylene-based polymer comprising the following properties: a) a ZSVR value from 1.2 to 2.6, b) a MWD from 1.5 to 2.8, and c) a tan delta (0.1 rad/s; 190 C) from 5.0 to 50.

First claim

The invention claimed is:

1. An ethylene-based polymer comprising the following properties:
a) a zero shear viscosity ratio, ZSVR, value from 1.3 to 2.6,
b) a molecular weight distribution, MWD, from 1.5 to 2.8, and
c) a tan delta (0.1 rad/s; 190° C.) from 15 to 50; and
wherein the ethylene-based polymer has a melt index (I2) greater than, or equal to, 0.9 g/10 min; and,
wherein the polymer has a single peak in a crystallization elution fractionation (CEF) comonomer distribution wherein the single peak is at a temperature from 60 ° C. to 100 ° C.

2. The ethylene-based polymer of claim 1 , wherein the ethylene-based polymer is an ethylene/alpha-olefin interpolymer.

3. The ethylene-based polymer of claim 1 , wherein the polymer has a density from 0.885 to 0.940 g/cc.

4. The ethylene-based polymer of claim 1 , wherein the polymer has a melt index (I2) from 1 to 500 g/10 min.

5. The ethylene-based polymer of claim 1 , wherein the polymer has a melt index (I2) from 1 to 5.0 g/10 min.

6. The ethylene-based polymer of claim 1 , wherein the polymer has a single peak in a CEF-Comonomer Distribution, at a temperature from 60 to 100° C., and wherein the peak width at 25% peak height, measured in ° C., is less than 30° C.

7. The ethylene-based polymer of claim 1 , wherein the polymer has an I 10 /I 2 ratio from 5.0 to 10.

8. The ethylene-based polymer of claim 1 , wherein the polymer has a MWD from 1.7 to 2.5.

9. The ethylene-based polymer of claim 1 , wherein the ethylene-based polymer is formed by a process comprising polymerizing at least ethylene, in the presence of at least one catalyst system comprising the reaction product of the following:
A) at least one cocatalyst; and
B) a procatalyst comprising a metal-ligand complex of Formula (I):

wherein:
M is titanium, zirconium, or hafnium, each independently being in a formal oxidation state of +2, +3, or +4; and n is an integer from 0 to 3, and wherein when n is 0, X is absent; and
Each X, independently, is a (C 1 -C 40 )hydrocarbyl, a (C 1 -C 40 )heterohydrocarbyl, or a halide, and wherein each X, independently, is a monodentate ligand that is neutral, monoanionic, or dianionic; or
wherein two Xs are taken together to form a bidentate ligand that is neutral, monoanionic, or dianionic; and
wherein X and n are chosen, such that, that the metal-ligand complex of Formula (I) is neutral; and
Each Z, independently, is an oxygen atom, a sulfur atom, —N[(C 1 -C 40 )hydrocarbyl]-, or —P[(C 1 -C 40 )hydrocarbyl]-; and
L is a substituted or unsubstituted (C 1 -C 40 )hydrocarbylene, or a substituted or unsubstituted (C 1 -C 40 )heterohydrocarbylene, and
wherein, for L, the (C 1 -C 40 )hydrocarbylene has a portion that comprises a 1-carbon atom to 10-carbon atom linker backbone linking R 21 and R 22 , or
wherein, for L, the (C 1 -C 40 )heterohydrocarbylene has a portion that comprises a 1-atom to 10-atom linker backbone linking R 21 and R 22 , wherein each of the 1 to 10 atoms of the 1-atom to 10-atom linker backbone of the (C 1 -C 40 )heterohydrocarbylene, independently, is one of the following: i) a carbon atom, ii) a heteroatom, wherein each heteroatom independently is —O—or —S—, or iii) a substituent selected from —S(O)—, —S(O) 2 —, —Si(R C ) 2 —, —Ge(R C ) 2 —, —P(R C )—, or —N(R C )—, and wherein each R C is independently, a substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, or a substituted or unsubstituted (C 1 -C 30 ) hetero-hydrocarbyl; and
R 21 and R 22 are each, independently, C or Si; and
R 1 through R 20 are each, independently, selected from the group consisting of: a substituted or unsubstituted (C 1 -C 40 )hydrocarbyl, a substituted or unsubstituted (C 1 -C 40 )hetero-hydrocarbyl, —Si(R C ) 3 , —Ge(R C ) 3 , —P(R C ) 2 , —N(R C ) 2 , —OR C , —SR C , —NO 2 , —CN, —CF 3 , —S(O)R C , —S(O) 2 R C , —N═C(R C ) 2 , —OC(O)R C , —C(O)OR C , —N(R)C(O)R C , —C(O)N(R C ) 2 , a halogen atom, and a hydrogen atom; and wherein each R C is independently a substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, or a substituted or unsubstituted (C 1 -C 30 ) heterohydrocarbyl; and
wherein, when R 17 is a hydrogen atom, then R 18 is a substituted or unsubstituted
(C 1 -C 40 )hydrocarbyl, a substituted or unsubstituted (C 1 -C 40 )heterohydrocarbyl, —Si(R C ) 3 , —Ge(R C ) 3 , —P(R C ) 2 , —N(R C ) 2 , —OR C , —SR C , —NO 2 , —CN, —CF 3 , —S(O)R C , —S(O) 2 R C , —N═C(R C ) 2 , —OC(O)R C , —C(O)OR C , —N(R)C(O)R C , —C(O)N(R C ) 2 , a halogen atom, or a hydrogen atom; and wherein each R C is independently a substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, or a substituted or unsubstituted (C 1 -C 30 ) heterohydrocarbyl; or
wherein, when R 18 is a hydrogen atom, then R 17 is a substituted or unsubstituted (C 1 -C 40 )hydrocarbyl, a substituted or unsubstituted (C 1 -C 40 )heterohydrocarbyl, —Si(R C ) 3 , —Ge(R C ) 3 , —P(R C ) 2 , —N(R C ) 2 , —OR C , —SR C , —NO 2 , —CN, —CF 3 , —S(O)R C , —S(O) 2 R C , —N═C(R C ) 2 , —OC(O)R C , —C(O)OR C , —N(R)C(O)R C , —C(O)N(R C ) 2 , a halogen atom, or a hydrogen atom; and wherein each R C is independently a substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, or a substituted or unsubstituted (C 1 -C 30 ) heterohydrocarbyl; and/or
wherein, when R 19 is a hydrogen atom, then R 20 is a substituted or unsubstituted (C 1 -C 40 )hydrocarbyl, a substituted or unsubstituted (C 1 -C 40 )heterohydrocarbyl, —Si(R C ) 3 , —Ge(R C ) 3 ), —P(R C ) 2 , —N(R C ) 2 , —OR C , —SR C , —NO 2 , —CN, —CF 3 , —S(O)R C , —S(O) 2 R C , —N═C(R C ) 2 , —OC(O)R C , —C(O)OR C , —N(R)C(O)R C , —C(O)N(R C ) 2 , a halogen atom, or a hydrogen atom; and wherein each R C is independently a substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, or a substituted or unsubstituted (C 1 -C 30 ) heterohydrocarbyl; or
wherein, when R 20 is a hydrogen atom, then R 19 is a substituted or unsubstituted (C 1 -C 40 )hydrocarbyl, a substituted or unsubstituted (C 1 -C 40 )heterohydrocarbyl, —Si(R C ) 3 , —Ge(R C ) 3, —P(R C ) 2 , —N(R C ) 2 , —OR C , —SR C , —NO 2 , —CN, —CF 3 , —S(O)R C , —S(O) 2 R C , —═C(R C ) 2 , —OC(O)R C , —C(O)OR C , —N(R)C(O)R C , —C(O)N(R C ) 2 , a halogen atom, or a hydrogen atom; and wherein each R C is independently a substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, or a substituted or unsubstituted (C 1 -C 30 ) heterohydrocarbyl; and
wherein two or more of R 1 through R 22 may form one or more ring structures, and wherein each ring structure has from 3 to 50 atoms in the ring, excluding hydrogen atoms; and
wherein one or more hydrogen atoms may be substituted with one or more deuterium atoms.

10. The ethylene-based polymer of claim 9 , wherein, for Formula I, when R 17 is a hydrogen atom, then R 18 is a substituted or unsubstituted (C 1 -C 40 )hydrocarbyl, a substituted or unsubstituted (C 1 -C 40 )heterohydrocarbyl, —Si(R C ) 3 , —Ge(R C ) 3 , —P(R C ) 2 , —N(R C ) 2 , —OR C , —SR C , —NO 2 , —CN, —CF 3 , —S(O)R C , —S(O) 2 R C , —N═C(R C ) 2 , —OC(O)R C , —C(O)OR C , —N(R)C(O)R C , —C(O)N(R C ) 2 , or a halogen atom; and wherein each R C is independently a substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, or a substituted or unsubstituted (C 1 -C 30 ) heterohydrocarbyl; or
wherein, when R 18 is a hydrogen atom, then R 17 is a substituted or unsubstituted (C 1 -C 40 )hydrocarbyl, a substituted or unsubstituted (C 1 -C 40 )heterohydrocarbyl, —Si(R C ) 3 , —Ge(R C ) 3 , —P(R C ) 2 , —N(R C ) 2 , —OR C , —SR C , —NO 2 , —CN, —CF 3 , —S(O)R C , —S(O) 2 R C , —═C(R C ) 2 , —OC(O)R C , —C(O)OR C , —N(R)C(O)R C , —C(O)N(R C ) 2 , or a halogen atom; and wherein each R C is independently a substituted

Assignees

• Dow Global Technologies Llc

Inventors

• Kapur Mridula
• Demirors Mehmet
• Fontaine Philip P
• Klosin Jerzy
• Szuromi Endre
• Iverson Carl N
• Rickaway Zach T
• Young Andrew J
• Brown Susan G
• Figueroa Ruth

Classifications

• C08F210/16 Primary

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

• C08F2500/03

  Narrow molecular weight distribution, i.e. Mw/Mn < 3 · CPC title

• C08F2500/19

  Shear ratio or shear ratio index · CPC title

• C08F2500/12

  Melt flow index or melt flow ratio · CPC title

• C08F210/14

  Monomers containing five or more carbon atoms · CPC title