Olefin-based polymer

Patent metadata

Field	Value
Publication number	US-9481747-B2
Application number	US-201414413076-A
Country	US
Kind code	B2
Filing date	Sep 25, 2014
Priority date	Sep 26, 2013
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

The present invention relates to an olefin-based polymer including an elution temperature 1 (Te1) and an elution temperature 2 (Te2), which are elution temperatures of the olefin-based polymer in a temperature range from −20° C. to 130° C. when measuring temperature rising elution fractionation (TREF) and having branch gradient number (BGN) from −1.0 to −0.001 when measuring chromatography Fourier transform infrared spectroscopy (GPC FT-IR).

First claim

The invention claimed is:

1. An olefin-based polymer including an elution temperature 1 (Te1) and an elution temperature 2 (Te2), which are elution temperatures of the olefin-based polymer in a temperature range from −20° C. to 130° C. when measuring temperature rising elution fractionation (TREF), and
having branch gradient number (BGN) from −1.0 to −0.001 when measuring chromatography Fourier transform infrared spectroscopy (GPC FT-IR).

2. The olefin-based polymer of claim 1 , wherein the Te1 is present at relatively lower temperature than the Te2 when measuring the TREF, and
the Te1 is in a range from −20° C. to 100° C., and the Te2 is in a range from 0° C. to 120° C. in a density range from 0.85 to 0.91 g/cc of the olefin-based polymer.

3. The olefin-based polymer of claim 2 , wherein the Te1 is in a range from −20° C. to 30° C., and the Te2 is in a range from 30° C. to 80° C. in a density range from 0.85 to 0.87 g/cc of the olefin-based polymer.

4. The olefin-based polymer of claim 2 , wherein the Te1 is in a range from 10° C. to 50° C., and the Te2 is in a range from 50° C. to 100° C. in a density range from 0.87 to 0.89 g/cc of the olefin-based polymer.

5. The olefin-based polymer of claim 2 , wherein the Te1 is in a range from 20° C. to 70° C., and the Te2 is in a range from 70° C. to 120° C. in a density range from 0.89 to 0.91 g/cc of the olefin-based polymer.

6. The olefin-based polymer of claim 1 , wherein the olefin-based polymer comprises a first semicrystalline olefin-based polymer and a second semicrystalline olefin-based polymer, and
a fraction ratio of a peak for the first semicrystalline olefin-based polymer (P1) is 5 to 95%, and a fraction ratio of a peak for the second semicrystalline olefin-based polymer (P2) is 5 to 95% when measuring TREF.

7. The olefin-based polymer of claim 6 , wherein the fraction ratio of the peak for the first semicrystalline olefin-based polymer (P1) is 10 to 90%, and the fraction ratio of the peak for the second semicrystalline olefin-based polymer (P2) is 10 to 90% when measuring TREF.

8. The olefin-based polymer of claim 1 , wherein the BGN is from −0.8 to −0.001.

9. The olefin-based polymer of claim 1 , wherein the olefin-based polymer comprises Tm1 and Tm2, which are melting temperatures (Tm) obtained in a differential scanning calorimetry (DSC) graph obtained by measuring DSC, and
the Tm1 is in a range from −30 to 120° C., and the Tm2 is in a range from −10 to 140° C. in a density range from 0.85 to 0.91 g/cc of the olefin-based polymer.

10. The olefin-based polymer of claim 9 , wherein the Tm1 is in a range from −30 to 45° C., and the Tm2 is in a range from 45 to 110° C. in a density range from 0.85 to 0.87 g/cc of the olefin-based polymer.

11. The olefin-based polymer of claim 9 , wherein the Tm1 is in a range from 20 to 75° C., and the Tm2 is in a range from 75 to 120° C. in a density range from 0.87 to 0.89 g/cc of the olefin-based polymer.

12. The olefin-based polymer of claim 9 , wherein the Tm1 is in a range from 30 to 90° C., and the Tm2 is in a range from 90 to 140° C. in a density range from 0.89 to 0.91 g/cc of the olefin-based polymer.

13. The olefin-based polymer of claim 1 , wherein melting index (MI) of the olefin-based polymer is from 0.1 to 2,000 g/10 min.

14. The olefin-based polymer of claim 1 , wherein weight average molecular weight (Mw) of the olefin-based polymer is from 10,000 to 500,000 g/mol.

15. The olefin-based polymer of claim 1 , wherein molecular weight distribution (MWD) of the olefin-based polymer is from 1.0 to 3.0.

16. The olefin-based polymer of claim 1 , wherein the olefin-based polymer is for hollow molding, extrusion molding or injection molding.

17. The olefin-based polymer of claim 1 , wherein the olefin-based polymer is obtained by polymerizing an olefin-based monomer using a catalyst composition comprising a transition metal compound represented by the following Formula 1:

in the above Formula 1,
M is a transition metal in group 4,
Q 1 and Q 2 are the same or different and independently hydrogen; halogen; alkyl having 1 to 20 carbon atoms; alkenyl having 2 to 20 carbon atoms; aryl having 6 to 20 carbon atoms; alkylaryl having 6 to 20 carbon atoms; arylalkyl having 7 to 20 carbon atoms; alkyl amido having 1 to 20 carbon atoms; aryl amido having 6 to 20 carbon atoms; or alkylidene having 1 to 20 carbon atoms,
R 1 to R 6 are the same or different and independently hydrogen; silyl; alkyl having 1 to 20 carbon atoms; alkenyl having 2 to 20 carbon atoms; aryl having 6 to 20 carbon atoms; alkylaryl having 7 to 20 carbon atoms; arylalkyl having 7 to 20 carbon atoms; or a metalloid radical of a metal in group 14 substituted with hydrocarbyl having 1 to 20 carbon atoms; R 1 and R 2 may be connected from each other, or at least two of R 3 to R 6 may be connected to each other to form an aliphatic ring having 5 to 20 carbon atoms or an aromatic ring having 6 to 20 carbon atoms; the aliphatic ring or the aromatic ring may be substituted with halogen, alkyl having 1 to 20 carbon atoms, alkenyl having 2 to 20 carbon atoms or aryl having 6 to 20 carbon atoms,
R 7 to R 11 are the same or different and independently hydrogen; alkyl having 1 to 20 carbon atoms; alkenyl having 2 to 20 carbon atoms; aryl having 6 to 20 carbon atoms; alkylaryl having 7 to 20 carbon atoms; or arylalkyl having 7 to 20 carbon atoms; at least two adjacent to each other of R 7 to R 11 may be connected to each other to form an aliphatic ring having 5 to 20 carbon atoms or an aromatic ring having 6 to 20 carbon atoms; the aliphatic ring or the aromatic ring may be substituted with halogen, alkyl having 1 to 20 carbon atoms, alkenyl having 2 to 20 carbon atoms or aryl having 6 to 20 carbon atoms.

Assignees

• Lg Chemical Ltd

Inventors

• Park Sang Eun
• Park Hae Woong
• Lee Young Woo
• Lee Choong Hoon
• Kum Don Ho

Classifications

• C08F210/16 Primary

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

• C08L23/0815

  with aliphatic 1-olefins containing one carbon-to-carbon double bond · CPC title

• C08L2205/025

  containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure · CPC title

• C08F4/65912

  in combination with an organoaluminium compound · CPC title

• C08F4/65904

  in combination with another component of C08F4/64 · CPC title