WO2011090346A2 - 균일한 공단량체 분포를 가지는 에틸렌-옥텐 공중합체 - Google Patents
균일한 공단량체 분포를 가지는 에틸렌-옥텐 공중합체 Download PDFInfo
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- WO2011090346A2 WO2011090346A2 PCT/KR2011/000445 KR2011000445W WO2011090346A2 WO 2011090346 A2 WO2011090346 A2 WO 2011090346A2 KR 2011000445 W KR2011000445 W KR 2011000445W WO 2011090346 A2 WO2011090346 A2 WO 2011090346A2
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65908—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
Definitions
- the present invention relates to ethylene-octene copolymers having a uniform comonomer distribution. Specifically, the present invention relates to ethylene-octene copolymers having a narrow molecular weight distribution, homogeneous comonomer distribution with ethylene, and low density at the same comonomer content.
- Metallocene catalysts in the production of polyolefins have made it possible to produce a wide range of products having a density range of 0.860 to 0.950 g / cm 3 .
- Polyethylenes produced using metallocene catalysts are characterized by relatively uniform size and structure of the main chains of the polymer. The physicochemical characteristics are determined by the comonomer type, content, molecular weight and molecular weight distribution, the distribution of the comonomers in the main chain, and the crystal structure.In other words, all the elements that form the complex structure of the polymer compound affect the synthesized form. It can be said that the result.
- Copolymerization of ethylene and ⁇ -olefin is a method of controlling the crystallinity and density of the polyolefin by forming a branched chain in the main chain.
- the density is high because it forms a crystal structure well, but when there are many branched chains, the density is relatively low because the crystal structure is not formed well.
- the most influential factors on the melting point of the polyolefin copolymer are the content of comonomers —olefins) and the distribution of comonomers in the main chain.
- the comonomer distribution in the main chain affects the melting point, crystallinity, and physical properties of elastic modulus, tensile strength, and light transmittance.
- Tm c is the melting point of the copolymer and Tm H is the melting point of the ethylene homopolymer.
- R is the gas constant, ⁇ is the enthalpy per mole of 100% ⁇ , and ⁇ is the probability that ethylene monomer is followed by ethylene in the copolymer distribution.
- the present invention is to provide a novel ethylene-octene copolymer having a low density and low melting point at the same octene content in the uniform distribution of octene when the ultra low density ethylene octene copolymer is prepared using a metallocene catalyst.
- the present invention is an ethylene-octene copolymer prepared in the presence of a catalyst composition and having a density of 0.857 to 0.91 g / cm 3 ,
- the ethylene-octene copolymer according to the present invention is prepared in the presence of a catalyst composition, and has an density of 0.857-0.91 g / cm 3 , an ethylene-octene copolymer, 1) molecular weight distribution (Mw / Mn) is 3.5 or less, 2)
- the product of the reactivity ratio (r e ) of the ethylene to the catalyst and the reactivity ratio (r 0 ) of the octene to the catalyst is 0.5 to 0.8, and 3) the density of the ethylene-octene copolymer and the ethylene-octene copolymer
- the content of octene ( ⁇ , mol%) is characterized by satisfying the above formula (1).
- the product of the semi-aromatic ratio (r e ) with respect to the catalyst of ethylene and the semi-aromatic ratio (r 0 ) with respect to the catalyst of octene is 0.5-0.8.
- Reactivity ratio (r e ) to the catalyst of ethylene and octene to the catalyst The product of the reactivity ratio (r 0 ), i.e., r e * r. Represents the distribution of monomers in the polymer backbone in the ethylene-octene copolymer.
- Banung ratio of r e, r 0 value for the monomer catalyst can be calculated as follows by 13 C NMR, and can be interpreted by the spectrum to the method of Randall, the method of Kakugo [Macromolecules 1982, 15, 1150 ] .
- E is ethylene
- C is octene which is a comonomer
- X is the mole fraction of ethylene and octene which are monomers injected into a reactor.
- EEE is the mole percent of the ethylene-octene copolymer in the order of ethylene-ethylene-ethylene
- EEC is the mole percent of the ethylene-octene copolymer in the order of ethylene-ethylene-octene
- ECE is Mole percent of the ethylene-octene-ethylene in the ethylene-octene copolymer in the order
- CCE is the mole 3 ⁇ 4 of the octane-octene-ethylene in the ethylene-octene copolymer
- CCC is the ethylene-octene air. Molar 3 ⁇ 4 of the ordered octene-octene-octene in the coalescing. .
- Reactivity ratio r e and r 0 values for the monomer and the catalyst is a means for imagining the microstructure of the copolymer through the amount of monomer introduced into the reaction vessel and 13 C NMR analysis. .
- the product of the reactivity ratio of ethylene to the catalyst (r e ) and the coagulant ratio (r 0 ) of the octene to the catalyst is 0.5 to 0.8, so that the co-monomer octene is uniform in the copolymer.
- the density of the ethylene-octene copolymer and the content (a, mol%) of octene in the ethylene-octene copolymer are satisfied of the above Equation 1.
- the ethylene-octene copolymers of the present invention can exhibit much lower densities than conventional ethylene-octene copolymers at the same comonomer content.
- the ethylene-octene copolymer of the present invention can minimize the content of the comonomer used in the manufacturing process can also obtain a cost reduction effect have.
- the density of the ethylene-octene copolymer may be 0.857 to 0.91 g / cm 3 , preferably 0.859 to 0.91 g / cm 3 , and more preferably 0.861 to 0.91 g / cm 3 . .
- the ethylene-octene copolymer of the present invention has a molecular weight distribution (Mw / Mn) which is a ratio of the weight average molecular weight (Mw) and the number average molecular weight (Mn) measured by GPC is 3.5 or less or 2.0 to 3.5, preferably It may be 3.4 or less or 2.0 to 3.4, preferably 3.3 or less or 2.0 to 3.3.
- the weight average molecular weight (Mw) of the ethylene-octene copolymer may be 30,000 to 300, 000, preferably 30,000 to 250,000, most preferably 30,000 to 200,000 Can be.
- the ethylene-octene copolymer may be used by adjusting the weight average molecular weight (Mw) in various ranges according to the film use.
- the melting point (Tm ⁇ ° C) of the ethylene-octene copolymer and the content ( ⁇ , mol%) of octene in the ethylene-octene copolymer satisfy the following Equation 2. It is desirable to.
- the dew point (Tm) of the ethylene-octene copolymer may be 30 to 120 ° C. Preferably it may be 40 to 115 ° C., more preferably 40 to 110 ° C. have.
- the ethylene-octene copolymers of the present invention are characterized by having a significantly lower melting point (Tm) at the same comonomer content. .
- the catalyst composition may include a metallocene catalyst.
- the catalyst composition may include a transition metal compound represented by Formula 1 below.
- R 1 , R 2 , R 3 , and R 4 are the same as or different from each other, and each independently a hydrogen atom; Alkyl, aryl or silyl radicals having 1 to 20 carbon atoms; Alkenyl, alkylaryl or arylalkyl radicals having 1 to 20 carbon atoms; Or a metalloid radical of a Group 14 metal substituted with hydrocarbyl; R 1 , R 2 , R 3 , and R 4 may be linked to each other by an alkylidine radical including an alkyl or aryl radical having 1 to 20 carbon atoms to form a ring;
- R 5 , R 6 , and R 7 are the same as or different from each other, 1, each independently a hydrogen atom; Halogen radical; or an alkyl, aryl radical, alkoxy aryloxy, amido radical having 1 to 20 carbon atoms; Two or more of R 5 , R 6 , and R 7 may be linked to each other to form an aliphatic or aromatic ring;
- R 8 is a hydrogen atom, alkyl having 1 to 20 carbon atoms, aryl, alkylaryl or arylalkyl radicals;
- Cy is a substituted or unsubstituted aliphatic or aromatic ring
- M is a Group 4 transition metal
- Q 1 , Q 2 , and Q 3 are each independently a halogen radical; Alkyl or aryl amido radicals having 1 to 20 carbon atoms; Alkyl, alkenyl, aryl, alkylaryl or arylalkyl radicals having 1 to 20 carbon atoms; Or an alkylidene radical having 1 to 20 carbon atoms.
- the preparation method may be represented by Scheme 1 as follows.
- the catalyst composition may further include one or more cocatalysts selected from the compounds represented by the following Chemical Formulas 2, 3 or 4.
- R 9 is each independently a halogen radical; Hydrocarbyl radicals having 1 to 20 carbon atoms; Or a hydrocarbyl radical having 1 to 20 carbon atoms substituted with halogen; a is an integer of 2 or more;
- R 10 is each independently a halogen radical; Hydrocarbyl radicals having 1 to 20 carbon atoms; Or a hydrocarbyl radical having 1 to 20 carbon atoms substituted with halogen; a is an integer of 2 or more;
- L is a neutral or cationic Lewis acid
- H is a hydrogen atom
- Z is a Group 13 element
- A is each independently an aryl or alkyl radical having 6 to 20 carbon atoms in which one or more hydrogen atoms are replaced by halogen, hydrocarbyl having 1 to 20 carbon atoms, alkoxy or phenoxy radicals.
- the method for preparing an ethylene-octene copolymer using the catalyst composition according to the present invention may use a general method known in the art, except for using the Group 4 transition metal compound represented by Chemical Formula 1 described above.
- the reactor used in the polymerization process of the ethylene-octene copolymer is preferably a continuous stirred reactor (CSTR) or a continuous flow reactor (PFR).
- CSTR continuous stirred reactor
- PFR continuous flow reactor
- the content of octene in the ethylene-octene copolymer may be 2 to 20 mol%, preferably 3 to 20 mol%, and more preferably 3 to 17 mol%. desirable.
- the ethylene-octene copolymer according to the present invention can be used in the manufacture of the film.
- the film can achieve a lower density than conventional ethylene-octene copolymers at the same octene content, and uses an ethylene-octene copolymer that can have a lower melting point, resulting in low temperature sealing and sealing The strength may be good.
- the present invention relates to an ethylene-octene copolymer having a narrow molecular weight distribution and a uniform comonomer distribution.
- the ethylene-octene copolymers according to the invention are conventional conventional ethylene-octene at the same octene content. It can achieve a lower density than the copolymer and can have a lower melting point. Accordingly, low temperature sealing may occur during film production using the ethylene-octene copolymer according to the present invention, and the sealing strength may be excellent.
- FIG. 1 is a view showing one specific example of the polymerization process of the ethylene-octene copolymer of the present invention.
- Example 2 is a graph showing the octene content and density of the ethylene-octene copolymer according to Example 1 and Comparative Example 3 of the present invention.
- Example 3 is a graph showing the octene content and melting point of the ethylene-octene copolymer according to Example 1 and Comparative Example 3 of the present invention.
- Figure 4 is a graph showing the peel strength according to the heat sealing temperature of the film prepared using the ethylene-octene copolymer according to Example 9 and Comparative Example 7.
- 1,2,3,4-tetrahydroquinoline 13.08 g, 98.24 mmol
- diethyl ether 150 mL
- Schlemk flasks The flask was immersed in a -78 ° C. low temperature bath formed with dry ice and acetone, stirred for 30 minutes, and then normal butylium (39.3 mL, 2.5 M nucleic acid solution, 98.24 mmol) was introduced into a syringe under a nitrogen atmosphere. A light yellow slurry formed. After stirring for 2 hours, the formed It was raised to room temperature while removing butane gas.
- the flask was again immersed in a -78 t low temperature bath to lower the temperature and CO 2 gas was added thereto. As the carbon dioxide gas was added, the slurry disappeared and became a transparent solution.
- the flask was connected to a bubbler to raise the temperature to room temperature while removing carbon dioxide gas, followed by vacuum to remove excess CO 2 gas and solvent.
- the flask was transferred to a dry box, pentane was added thereto, stirred, and filtered to obtain a white solid compound. Diethyl ether is coordinately bonded. At this time, the yield was 100%.
- Lithium carbamate compound (8.47 g, 42.60 mmol) was placed in Schlemk flask. Tetrahydrofuran (4.6 g, 63.9 mmol) was added sequentially followed by 45 mL of diethyl ether. The flask was immersed in a -20 ° C low temperature bath made of acetone and a small amount of dry ace, stirred for 30 minutes, and then tert-BuLK25.1 mL, 1.7 M, 42.60 mmol) was added thereto. At this time, it turned red. Stir for 6 hours while maintaining -20 ° C.
- 1- (N-methyl-1,2,3,4-tetrahydroquinolin-8-yl) -2, 3, 4, 5-terramethylcyclopentadienyl titanium ( IV) trichloride compound was prepared in a catalyst storage tank to the eu 1.0 10- 4 M under nucleic acid solvent.
- the promoter was slurried (2.4 ⁇ 10 _4 M) in toluene solvent or hydrocarbon solvent and prepared in the promoter storage tank. These two components were pumped separately and the reaction temperature was controlled by adjusting the temperature of the oil passing through the jacket of the reactor wall. Polymer density was controlled by adjusting the ethylene / comonomer weight ratio in the feed.
- the catalyst compound used in the experiment was 1- (N-methyl-1,2,3,4-tetrahydroquinoline-8 day) ⁇ 2,3,4,5-terramethylcyclopentadienyl titanium (IV) trichloride.
- Dimethylanilinium tetrakis- (pentafluorophenyl) borate was used as an activator, and triisobutylaluminum was used as a scavenger.
- Ethylene (5) mixed with hydrogen (6) was fed to a nucleic acid solvent (3) mixed with 1-octene (4). This was fed continuously to the reactor 8 in one stream.
- TIBALC7 used as scavenger, was fed to a single stream at the front of the counterunggi.
- the catalyst (1) and cocatalyst (2) were injected directly and continuously into the counterunggi (8).
- the molten polymer from the reactor via effluent stream 9 was separated through separator 10 and then into unreacted 1-octene, unbanned ethylene, unreacted hydrogen and dilute mixture stream 11.
- the molten polymer was continuously pelletized 12 and then the solid pellet 13 was collected.
- Polymerization conditions of the ethylene and the 1-octene co-polymer according to Examples 1 to 9 are as shown in Table 1 below.
- Example 2 is a reactor of ethylene and 1-octene at the rate of 0.63 kg / h and 0.48 kg / h, respectively, while continuously injecting 3.32 kg of nucleic acid as a solvent at 155 ° C, 89 bar per hour was fed continuously.
- the molar ratio of 1-octene / ethylene was 0.19.
- the reaction period was 7 minutes and 740.1 g of ethylene / 1
- An octene copolymer was obtained.
- the results of this experiment yielded an ethylene / 1-octene copolymer containing 4.8 g / lOmin MI2, density 0.870 g / cc, 64.4% comonomer (NMR).
- the polymer molecular weight The rate allows control of the ethylene conversion in the reaction vessel and the amount of hydrogen supplied. In general, increasing the ethylene conversion yields polymer
- the density of the polymer may be controlled by adjusting the molar ratio of ethylene / octene supplied. Comparative Examples 1-7
- Ethylene and 1-octene copolymers commercially produced by Dow were obtained and used.
- Main properties of the ethylene-octene copolymers according to Examples 1 to 9 and Comparative Examples 1 to 7 were measured by the following method.
- the melt index (MI) of the polymer is ASTM 1238 (Condition E, 190 ° C,
- the melting point of the polymer was obtained using a differential scanning calorimeter (DSC: Differential Scanning Calorimeter 2920) manufactured by TA. DSC was equilibrated at a temperature of 0 ° C, and then increased by 20 ° C per minute to 180 ° C. Raised to 20 ° C per minute, reduced to -60 ° C, then increased by 10 ° C per minute to increase the silver to 180 ° C. Melting point of the endothermic curve during the second temperature rise Obtained by taking the top area.
- DSC Differential Scanning Calorimeter 2920
- the density of the polymer was treated with an antioxidant (1,000 ppm). Samples were measured on a Mettler balance by making sheets of thickness 3 mm, radius 2 cm with a 180 ° C. Press Mold and cooling to 10 ° C./min.
- the crystallinity of the polymer was obtained by using Dispersive Raman of Thermo Electron. 780 nm laser was used, power was used 10mW, 100 im pinhole. In the Raman spectra of each sample, a band (1,418 ⁇ 1 ) corresponding to the crystallization region of the polyolefin and a band (1,310 cm -1 ) corresponding to the amorphous region were well represented. Colloid & Polymer Sci 1982, 260, 182-192; The crystallinity was calculated based on the method shown in.
- the molecular weight of the polymer is measured by PL-GPC 220 from Polymer Laboratory, equipped with three linearly mixed bed columns. It was measured at a flow rate of 1.0 mL / min using a 1,2,4- trichlorobenzene as a solvent at a temperature of 160 ° C. Measurement results of the 1-octene content, melt index, density, melting point, crystallinity, molecular weight, molecular weight distribution of the copolymers according to Examples 1 to 9 and Comparative Examples 1 to 7 are shown in Table 3 below. Table 3
- Example 1 87.3 12.7 0.868 5.76 50.0 16 73,200 2.77
- Example 2 87.9 12.1 0.870 4.80 54.6 18 75,100 2.60
- Example 3 89.4 10.6 0.874 0.95 60.7-101,100 3.22
- Example 4 90.6 9.4 0.880 0.95 69.2-95,500 2.57
- Example 5 91.8 8.2 0.885 1.04 75.3 24 94,300 2.59
- Example 6 92.9 7.1 0.891 0.79 83.7-93,400 2.62
- Example 7 93.3 6.7 0.893 1.06 86.8-88,100 2.65
- Example 8 94.1 5.9 0.896 0.89 91.3-89,000 2.68
- Example 9 95.1 4.9 0.899 0.85 96.2 26 88,800 2.60
- Comparative Example 1 85.2 14.8 0.863 0.5 50.9-126,200 2.46
- Comparative Example 2 87.1 12.9 0.869 0.5 58.6-122,200 2.46
- Comparative Example 3 87.4 1
- Ethylene and octene contents were measured by 13 C NMR, melting point was measured by the second temperature rise of DSC, and crystallinity was obtained by Raman spectral analysis.
- Example 1 and Comparative Example 3 shows a phenomenon in which the melting point and the density are different when the content of the comonomer is the same (FIGS. 2 and 3). Therefore, in order to examine the difference of physical properties according to the comonomer fraction, r e * r ⁇ was calculated using Triad Sequence analysis and Kakugo's method based on 13 C NMR spectrum. The results are shown in Table 4 below.
- Example 1 12.7 0.868 0.0 1.8 10.8 1.2 17.1 69.0 0.51
- Example 1 12.1 0.870 0.0 1.7 10.4 1.0 17.1 69.6 0.52
- Example 3 10.6 0.874 0.0 1.4 9.2 0.9 14.6 73.9 0.58
- Example 4 9.4 0.880 0.0 1.0 8.4 0.8 14.1 75.7 0.52
- Example 5 8.2 0.885 0.0 0.8 7.4 0.7 13.1 78.0 0.56
- Example 6 7.1 0.891 0.0 0.7 6.4 0.7 11.0 81.2 0.67
- Example 7 6.7 0.893 0.0 0.6 6.1 0.5 10.3 82.5 0.64
- Example 8 5.9 0.896 0.0 0.4 5.5 0.4 9.8 83.9 0.55
- Comparative Example 1 14.8 0.863 0.2 4.2 10.4 1.8 19.1 64.3 1.09
- Comparative Example 2 12.9 0.869 0.2 3.2 9.5 1.5 16.1 6
- the ethylene-octene copolymers of Examples 1 to 9 show a distribution of 0.51 to 0.67
- the copolymers of Comparative Examples 1 to 7 show a distribution of 1.09 to 1.35.
- the unique catalyst structure in the present invention allowed the comonomers in the copolymer to be uniformly distributed, which makes it possible to achieve low density and low melting point at the same content. Also, if the melting point is low When the plasticization temperature is low and mixed with other resins, it is easily dispersed even under conditions of low temperature and low shear force, thereby increasing uniformity. Due to this increase in the balance properties, the physical properties of the resin are more stable and improved. Moreover, it can be seen that it has excellent thermal adhesiveness at low temperature and has excellent characteristics as a low temperature heat seal improver of LDPE, MDPE, HDPE, and PP. Experimental Example 1
- the films using the ethylene-octene copolymers according to Example 9 and Comparative Example 7 were washed using the air blow molding method.
- a three-layer extruder with a screw diameter of 30 ⁇ 40 ⁇ and 30 ⁇ mm is used, and the outer and middle layers of the film use low density polyethylene (LDPE) and linear low density polyethylene (LLDPE), and the heat-sealing layer has a density of 0.900 g / cm 3 .
- LG and Dow products were used.
- the blow up ratio of the film was adjusted to 2.3, the thickness of the whole film was 100 ⁇ and the thickness of the inner layer was 20;
- Heat Sealing Strength was measured using a Tack Tester. Heat sealing conditions are as follows.
- Example 4 shows the peel strength according to the heat sealing temperature of the film prepared using the ethylene-octene copolymers of Example 9 and Comparative Example 7.
- the film prepared using the ethylene-octene copolymer of Example 9 started to be heat-sealed at a lower temperature than Comparative Example 7, indicating that the peel strength was large.
- the heat sealing starts at 85 ° C. and shows a relatively large peel strength compared to Comparative Example 7, such a trend is continuously shown even at 90 ° C, 95 ° C heat sealing temperature.
- the ethylene-octene copolymer of the present invention may exhibit a layered sealing phenomenon at a low temperature during film production, which is very advantageous when used as a packaging material or coating agent.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US13/521,706 US20130053527A1 (en) | 2010-01-21 | 2011-01-21 | Eyhlylene-octene copolymer having uniform comonomer distribution (as amended) |
CN2011800096598A CN102762614A (zh) | 2010-01-21 | 2011-01-21 | 具有均匀共聚单体分布的乙烯-辛烯共聚物 |
EP11734895.3A EP2527378B1 (en) | 2010-01-21 | 2011-01-21 | Use of an ethylene-octene copolymer having a uniform comonomer distribution in the fabrication of films |
JP2012549947A JP2013517367A (ja) | 2010-01-21 | 2011-01-21 | 均一な共単量体分布を有するエチレン−オクテン共重合体 |
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KR20100005488 | 2010-01-21 | ||
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US (1) | US20130053527A1 (ko) |
EP (1) | EP2527378B1 (ko) |
JP (1) | JP2013517367A (ko) |
KR (2) | KR20110085941A (ko) |
CN (2) | CN106188366B (ko) |
WO (1) | WO2011090346A2 (ko) |
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JP5800727B2 (ja) * | 2012-02-16 | 2015-10-28 | 三井化学株式会社 | オレフィン重合用触媒およびオレフィン重合体の製造方法 |
JP2017031300A (ja) * | 2015-07-31 | 2017-02-09 | 国立大学法人 東京大学 | エチレン・α−オレフィン・極性基含有アリルモノマー三元共重合体及びその製造方法 |
WO2022220652A1 (ko) * | 2021-04-15 | 2022-10-20 | 주식회사 엘지에너지솔루션 | 이차전지 |
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US5374696A (en) * | 1992-03-26 | 1994-12-20 | The Dow Chemical Company | Addition polymerization process using stabilized reduced metal catalysts |
US6030917A (en) * | 1996-07-23 | 2000-02-29 | Symyx Technologies, Inc. | Combinatorial synthesis and analysis of organometallic compounds and catalysts |
US5614315A (en) * | 1995-01-20 | 1997-03-25 | Okura Industrial Co., Ltd. | Heat-shrinkable multi-layer polyolefin films |
CN100503231C (zh) * | 2005-05-14 | 2009-06-24 | 杨毅 | 一种poe弹性复合材料的制造方法及其制造设备 |
US8681849B2 (en) * | 2005-06-29 | 2014-03-25 | Intel Corporation | Precoder construction and equalization |
KR100820542B1 (ko) * | 2006-03-24 | 2008-04-08 | 주식회사 엘지화학 | 전이금속 화합물, 이를 포함하는 촉매 조성물 및 이를이용한 올레핀 중합 |
KR100999592B1 (ko) * | 2007-02-15 | 2010-12-08 | 주식회사 엘지화학 | 새로운 시클로펜타디에닐 리간드를 갖는 4족 전이금속화합물, 이의 제조방법 및 이를 이용한 올레핀계 중합체의제조방법 |
KR101025039B1 (ko) * | 2007-05-03 | 2011-03-25 | 주식회사 엘지화학 | 신규한 시클로펜타디에닐 리간드 및 이를 포함하는 4족전이금속 화합물 |
KR100994252B1 (ko) * | 2007-05-09 | 2010-11-12 | 주식회사 엘지화학 | 에틸렌 알파-올레핀 공중합체 |
WO2008140280A2 (en) * | 2007-05-16 | 2008-11-20 | Lg Chem, Ltd. | Long chain-branched ethylene-alpha olefin copolymer |
-
2011
- 2011-01-21 KR KR1020110006279A patent/KR20110085941A/ko active Search and Examination
- 2011-01-21 EP EP11734895.3A patent/EP2527378B1/en active Active
- 2011-01-21 CN CN201610556267.8A patent/CN106188366B/zh active Active
- 2011-01-21 JP JP2012549947A patent/JP2013517367A/ja active Pending
- 2011-01-21 US US13/521,706 patent/US20130053527A1/en not_active Abandoned
- 2011-01-21 WO PCT/KR2011/000445 patent/WO2011090346A2/ko active Application Filing
- 2011-01-21 CN CN2011800096598A patent/CN102762614A/zh active Pending
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2012
- 2012-08-03 KR KR1020120085344A patent/KR20120090927A/ko not_active Application Discontinuation
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COLLOID & POLYMER SCI., vol. 260, 1982, pages 182 - 192 |
FLORY, TRANS FARADAY SOC., vol. 51, 1955, pages 848 |
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See also references of EP2527378A4 |
Also Published As
Publication number | Publication date |
---|---|
US20130053527A1 (en) | 2013-02-28 |
EP2527378B1 (en) | 2015-03-11 |
WO2011090346A3 (ko) | 2011-12-29 |
EP2527378A2 (en) | 2012-11-28 |
CN102762614A (zh) | 2012-10-31 |
CN106188366A (zh) | 2016-12-07 |
CN106188366B (zh) | 2018-12-18 |
KR20110085941A (ko) | 2011-07-27 |
JP2013517367A (ja) | 2013-05-16 |
KR20120090927A (ko) | 2012-08-17 |
EP2527378A4 (en) | 2013-11-06 |
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