Olefin-based polymer and method for preparing same
AssigneeHanwha Solutions Corporation
InventorsMunhee Lee, Sung Dong Kim, Ui Gap Joung, Jeong Hyun Park, Hye Ran Park, Junho Seo, Seongjae Lim, Jisong Jo
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Abstract
The present invention relates to an olefin-based polymer and a method for preparing same. Specifically, the present invention relates to an olefin-based polymer for which processability can be controlled according to a change in density, and a method for preparing same. Processability of the olefin-based polymer according to an embodiment of the present invention can be controlled according to a change in density.
Claims15
An olefin-based polymer which has (1) a density of 0.915 to 0.945 g/cm3;
- (2) a melt index (I2.16) of 0.5 to 1.5 g/10 min as measured with a load of 2.16 kg at 190° C.;
- and (3) a ratio between a melt index (I21.6) measured with a load of 21.6 kg and a melt index (I2.16) measured with a load of 2.16 kg at 190° C. (melt flow ratio;
- MFR) satisfying the following Equation 1:
- -
- 4625
-
- d
- 2
- +
- 8449
-
- d
- -
- 3840
- <
- MFR
- <
- -
- 4625
-
- d
- 2
- +
- 8449
-
- d
- -
- 3834
- [
- Equation
-
- 1
- ]
- wherein MFR is a melt flow ratio, and d is density (g/cm3), and
- wherein the olefin-based polymer is prepared by polymerizing an olefin-based monomer in the presence of a hybrid catalyst, said hybrid catalyst including:
- one or more first transition compound represented by the following Chemical Formula 1;
- and
- one or more second transition metal compound selected from a compound represented by the following Chemical Formula 3:
- wherein M1 and M2 are different from each other and independently of each other titanium (Ti), zirconium (Zr), or hafnium (Hf),
- X2 is independently of each other halogen, C1-20 alkyl, C2-20 alkenyl, C2-20 alkynyl, C6-20 aryl, C1-20 alkyl C6-20 aryl, C6-20 aryl C1-20 alkyl, C1-20 alkylamido, or C6-20 arylamido, and
- R1 is substituted or unsubstituted C3-20 alkyl, R2 to R5 are hydrogen, and R6 to R10 are independently of one another substituted or unsubstituted C1-2 alkyl.
A method for preparing an olefin-based polymer, the method comprising:
- polymerizing an olefin-based monomer in the presence of a hybrid catalyst including:
- one or more first transition metal compound represented by the following Chemical Formula 1;
- and one or more second transition metal compound selected from a compound represented by the following Chemical Formula 3, thereby obtaining an olefin-based polymer, wherein the olefin-based polymer has (1) a density of 0.915 to 0.945 g/cm3;
- (2) a melt index (I2.16) of 0.5 to 1.5 g/10 min as measured with a load of 2.16 kg at 190° C.;
- and (3) a ratio between a melt index (I21.6) measured with a load of 21.6 kg and a melt index (I2.16) measured with a load of 2.16 kg at 190° C. (melt flow ratio;
- MFR) satisfying the following Equation 1:
- -
- 4625
-
- d
- 2
- +
- 8449
-
- d
- -
- 3840
- <
- MFR
- <
- -
- 4625
-
- d
- 2
- +
- 8449
-
- d
- -
- 3834
- [
- Equation
-
- 1
- ]
- wherein MFR is a melt flow ratio,
- d is density (g/cm3),
- M1 and M2 are different from each other and independently of each other titanium (Ti), zirconium (Zr), or hafnium (Hf),
- X is independently of each other halogen, C1-20 alkyl, C2-20 alkenyl, C2-20 alkynyl, C6-20 aryl, C1-20 alkyl C6-20 aryl, C6-20 aryl C1-20 alkyl, C1-20 alkylamido, or C6-20 arylamido, and
- R1 is substituted or unsubstituted C3-20 alkyl, R2 to R5 are hydrogen, and R6 to R10 are independently of one another substituted or unsubstituted C1-2 alkyl.
Dependencies are inferred from the claim text.