WO2016099118A1 - 가공성이 우수한 올레핀계 중합체 - Google Patents
가공성이 우수한 올레핀계 중합체 Download PDFInfo
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- WO2016099118A1 WO2016099118A1 PCT/KR2015/013735 KR2015013735W WO2016099118A1 WO 2016099118 A1 WO2016099118 A1 WO 2016099118A1 KR 2015013735 W KR2015013735 W KR 2015013735W WO 2016099118 A1 WO2016099118 A1 WO 2016099118A1
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
Definitions
- the present invention relates to an olefin polymer having excellent processability.
- Olefin polymerization catalyst systems can be classified into Ziegler-Natta and metallocene catalyst systems, and these two highly active catalyst systems have been developed for their respective characteristics.
- the Ziegler-Natta catalyst has been widely applied to the existing commercial processes since the invention in the 50s, but is characterized by a wide molecular weight distribution of the polymer because it is a mul tisi te catalyst having many active sites. There is a problem that there is a limit in securing the desired physical properties because the composition distribution is not uniform.
- the metallocene catalyst is composed of a combination of a main catalyst composed mainly of transition metal compounds and a cocatalyst composed of organometallic compounds composed mainly of aluminum, and such catalysts are homogeneous complex catalysts and have a single active site catalyst (s ingl e si).
- te catalyst a narrow molecular weight distribution according to the characteristics of a single active site, a homogeneous composition distribution of the comonomer is obtained, the stereoregularity of the polymer according to the modification of the ligand structure of the catalyst and changes in the polymerization conditions, copolymerization characteristics , Molecular weight, crystallinity and the like can be changed.
- 5,914,289 describes a method for controlling the molecular weight and molecular weight distribution of a polymer using a metallocene catalyst supported on each carrier, but the amount and time of preparation of the solvent used in preparing the supported catalyst This takes a lot, and the hassle of having to support the metallocene catalyst to be used on the carrier, respectively.
- Korean Patent Application No. 10-2003-0012308 discloses a method for controlling the molecular weight distribution by supporting a double-nuclear metallocene catalyst and a mononuclear metallocene catalyst on a carrier together with an activator to polymerize by changing the combination of catalysts in the reactor. Is starting.
- linear low density polyethylene is a resin produced by copolymerizing ethylene and alpha olefin at low pressure using a polymerization catalyst, and has a narrow molecular weight distribution, a short length branch of a constant length, and no long chain branching.
- linear low density polyethylene film had a high breaking strength and elongation, with the characteristics of normal polyethylene, hard-to-tear strength, falling weight cheunggyeok strength is superior to the application of conventional low density poly "ethylene or high-density polyethylene stretch film, the overlap film, etc. It is increasing.
- linear low density polyethylene using 1-butene or 1-nuxene as comonomer is mostly produced in a single vapor phase reactor or a single loop slurry reactor, which is more productive than a process using 1-octene comonomer, but these products are also Due to the limitations of the catalyst technology and the process technology used, there is a problem that the physical properties are inferior to that of using the 1-octene comonomer, and the processability is poor due to the narrow molecular weight distribution. Many efforts have been made to improve this problem, and US Patent Nos. 4, 935 and 474 report two or more metallocene compounds used for producing a polyethylene having a wide molecular weight distribution. United States Patent No.
- the present invention is to provide an ethylene-alpha olefin polymer having excellent processability and improved mechanical properties.
- the present invention provides an ethylene-alpha olefin copolymer satisfying the following conditions:
- the weight average molecular weight is 50,000 to 150, 000,
- Density is 0.910 to 0.940 g / cirf
- MFRR MI10 / MI2.166
- Equation 1 plateau ' delta value satisfies Equation 2:
- the ethylene-alpha olefin copolymer as defined above is characterized in that the long chain branch (LCB) is introduced and shows excellent workability and Haze properties.
- the catalyst which can be used in order to satisfy each said condition is mentioned later.
- the increased average molecular weight (g / mol) of the ethylene-alpha olefin copolymer is
- the molecular weight distribution (Mw / Mn) of the ethylene-alpha olefin copolymer is 2 to 5, preferably 2.5 to 3.5.
- the density (g / « 3 ) of the ethylene-alphalefin copolymer is 0.910 to 0.940, preferably 0.915 to 0.930.
- the ethylene-alpha-olefin copolymer and the MFRR (. MI 10 / MI 2 16) is from 10 to 20, measured by ASTM 1238 eseo 190 ° C.
- the ethylene-alpha olefin copolymer of the present invention ⁇ complex viscosity (complex viscosity * [Pa.s]) graph according to the frequency (frequency, ⁇ [rad / s]) of 0.05 to 500 rad / s When fitted to 1, the C 2 value is -0.30 to -0.60. Equation 1 is a Power Law model, where x is frequency, y is complex viscosity, and two variables ( ⁇ and C 2 are required.
- C 2 value indicates the slope of the graph to be related to the complex viscosity graph fluidity with respect to the frequency, with a high complex viscosity at a low frequency high frequency high fluidity , which means, that is, having a gradient value of the sound, the higher the absolute value of the inclination value may be said that indicates a high fluidity.
- the olefin-based polymer of the present invention the complex viscosity So with respect to the frequency.
- slope in profile (C 2 ) Ranges from about -0.30 to about -0.60, showing significantly higher flowability compared to conventional olefinic polymers having similar density and weight average molecular weight. Despite the low melt index, and it can be seen that shows excellent fluidity and the workability is more excellent shear thinning effect.
- the C 2 is the -0.30 to -0.55.
- the ( is 30,000 to 300, 000.
- the complex viscosity according to the frequency can be obtained by using a dynamic frequency sweep at 190 ° C. using an ARES dvanced rheometric expansion system, and the dynamic frequency sweep can be measured using a 25 ⁇ parallel plate in the form of a disk.
- the ethylene-alpha olefin copolymer of the present invention has a feature that the plateau delta value satisfies the following formula? In Van Gurp Pal men Plot.
- the Van Gurp-Palmen graph is a graph in which the X-axis is complex modulus (G, dyne / cuf) and the Y-axis is phase angle (d (delta)).
- This graph is used when In particular, when the inflection point is present in the graph means that the presence of LCB, these polymers are excellent in swell, bubble stability, melt fracture, sagging time, etc., can be variously applied according to the application, in particular pipe having improved physical properties Etc. can be provided.
- the present invention is characterized in that the plateau delta value, which is the d value at the inflection point, satisfies Equation 2 above. Preferably, the plateau delta value satisfies Equation 2-1.
- the Van Gurp-Palmen graph can be obtained by selecting and plotting G * and delta among the better variables in the dynamic frequency sweep test.
- G * is the force applied when straining the polymer
- delta is the elastic term among them.
- the olefinic polymer as described above may be prepared using a supported metallocene catalyst, specifically, A supported catalyst comprising one or more selected from the group consisting of a first catalyst represented by 1, a second catalyst represented by the following Formula 2, and a third catalyst represented by the following Formula 3 is used:
- M is a Group 4 transition metal
- B is carbon, silicon or germanium
- Qi and 3 ⁇ 4 are each independently hydrogen, halogen, alkyl, CHO, C 2 - 20 alkenyl, Ce-20 aryl, C 7 - 20 alkylaryl, C T 20 arylalkyl, CHO alkoxy, C 2 - 20 alkoxyalkyl,
- Xi and 3 ⁇ 4 are each independently selected from halogen, d- 20 alkyl, C 2 - 20 alkenyl Al, C 6 - 20 aryl, nitro, amido, alkyl, silyl, d- 20 alkoxy, or d- 20 Sulfonate;
- C 2 is the following Chemical Formula 2a or Chemical Formula 2b,
- Ri to R 13 are each independently hydrogen, halogen, 20 alkyl, C 2 - 20 alkenyl, alkyl silyl, alkyl silyl, d-20, alkoxysilyl, d-20 ether, silyl ether 20 d-, d-20 alkyl, and 20 alkylaryl, or C T 20 arylalkyl, - C 6 - 20 aryl, C 7
- R 'l to R' 3 are each independently hydrogen, halogen, (20 alkyl, C 2 - 20 alkenyl, or C 6
- R lO to 3 and R 'to 10 ⁇ 13 are each independently hydrogen, alkyl, C 2 -20 alkenyl, C 6 - 20 aryl, C 7 - 20 alkylaryl, C 7 - 20 arylalkyl, C 2 - 20 alkoxycarbonyl Alkyl or d- 20 amine, or two or more adjacent groups of R 10 to R 13 and R '10 to R' 13 are connected to each other to form one or more aliphatic rings, aromatic rings, or hetero rings; The ring, aromatic ring, or hetero ring is unsubstituted or substituted with d-20 alkyl;
- Q is -CH 2 CH 2- , -C (Z ! ) (Z 2 )-or -Si;
- Z 2 are each independently hydrogen, alkyl, C 3 - 20 cycloalkyl, alkoxy, C 2 - 20 alkoxyalkyl, C 6 - 20 aryl, C 3 - 10 aryloxy, C 2 - alkenyl 20 Al, C 7 - 40 alkylaryl, or C 7 - 40 aryl-alkyl;
- M 2 is a Group 4 transition metal
- 3 ⁇ 4 and are each independently selected from halogen, alkyl, C 2 20 alkenyl, C 6 - 20 yaril, nitro, amido, Cl - 20 alkyl, silyl, alkoxy, d- or sulfone carbonate, and 20;
- M 3 is a Group 4 transition metal
- 3 ⁇ 4 and 3 ⁇ 4 are each independently halogen, alkyl, C 2 - 20 alkenyl Al, C 6 - 20 aryl, nitro, amido, alkyl, silyl, alkoxy, or d- d- 20 20 carbonate and sulfone;
- l4 to 9 are each independently hydrogen, d-20 alkyl, C 2 - 20 alkenyl, alkoxy, C 6 _20 aryl, C 7 - 20 alkylaryl, C 7 - 20 aryl-alkyl, d-20 alkyl silyl group, C 6 - 20 arylsilyl, or CHO amine; Or two or more adjacent ones of R 14 to R 17 connected to each other to form one or more aliphatic rings, aromatic rings, or hetero rings;
- L 2 is straight or branched chain alkylene
- D 2 is -0- -S - -N (R) - or -Si (R) (R ') - , in which R and R' are each independently hydrogen, halogen, d-20 alkyl, C 2 - 20 alkenyl, or C 6 - 20 aryl;
- a 2 is hydrogen, halogen, d- 20 alkyl, C 2 - 20 alkenyl, C 6 - 20 aryl, C 7 - 20 alkylaryl, C 7 - 20 arylalkyl, d- 20 alkoxy, C 2 - 20 'alkoxy alkyl, C 2 - 20 heterocycloalkyl, or C 5 - 20 membered heteroaryl;
- B is carbon, silicon, or germanium, and is a bridge that binds a cyclopentadienyl family ligand and J (R 19 ) Z - Y by a covalent bond;
- J is a periodic table group 15 element or group 16 element
- z is the oxidation number of the element J
- y is the number of bonds of the J elements.
- i) Crab 1 catalyst and ii) Geo 12 It preferred to use a catalyst or a catalyst to 3 ', and it is more preferable to use a first catalyst and a second catalyst.
- the indene derivative of d (Formula 2a) has a lower electron density than indenoindole derivatives or fluorenyl derivatives, and has a similar structure due to steric hindrance effects and electron density factors as it contains silyl groups having a large steric hindrance.
- the olefin copolymer having a relatively low molecular weight can be polymerized with high activity.
- the fluorenyl derivative which may be represented as C 2 (Formula 2b) forms a crosslinked structure by a bridge, and exhibits high polymerization activity by having a non-covalent electron pair which may act as a Lewis base in the ligand structure.
- M is zirconium
- B is silicon
- 3 ⁇ 4 and 3 ⁇ 4 are each independently alkyl or C 2 - and 20 alkoxyalkyl, provided that at least one of Qi and Q 2 are C 2 - 20 Alkoxyalkyl (preferably d- 6 alkyl substituted with t-buroxy) and 3 ⁇ 4 and 3 ⁇ 4 are halogen. More preferably, 3 ⁇ 4 is methyl and 3 ⁇ 4 is 6—tert-butoxy—nuclear chamber.
- R 13 is hydrogen
- R 'i to R' 3 is CHO alkyl. More preferably, R'i to R'3 are methyl.
- Representative examples of the compound represented by Formula 1 are the same as the compound represented by the following Formula 1-1 or 1-2:
- the manufacturing method of the said 1st catalyst is concretely demonstrated to the Example mentioned later.
- the first catalyst represented by Formula 1 mainly contributes to making a high molecular weight copolymer
- the catalyst represented by Chemical Formula 2 or Formula 3 may contribute to making a relatively low molecular weight copolymer.
- Formula 2 the first catalyst represented by Formula 1 mainly contributes to making a high molecular weight copolymer
- the catalyst represented by Chemical Formula 2 or Formula 3 may contribute to making a relatively low molecular weight copolymer.
- Formula 2 the catalyst represented by Chemical Formula 2 or Formula 3
- RlO to Rl3 and R'10 to 1? ' 13 are each independently hydrogen, alkyl or C 2 - or 20 alkoxyalkyl, or R 10 to R 13 and R '10 to R' is at least two adjoining 13 are connected to each other at least one aliphatic ring or an aromatic ring And the aliphatic ring or aromatic ring is unsubstituted or
- Q is -CH 2 CH 2- , -C (Z!) (Z 2 )-or -SKZiXZ)-;
- Zi and Z 2 are each independently selected from (20 alkyl or C 2 - 20 alkoxy-alkyl;
- M 2 is zirconium
- R 10 to R 13 and R '10 to 1?' 13 are each independently hydrogen, methyl or 6-tert eu appendix when - or haeksil, or R 10 to R 13 and R '10 to R' is at least two adjoining 13 are connected to each other at least one benzene ring or a cycloalkyl Forming a nucleic acid ring, wherein the benzene ring is unsubstituted or substituted with tert-buroxy;
- Q is -CH 2 CH 2- , -C (Z ! ) (Z 2 )-or -Si (3 ⁇ 4) (3 ⁇ 4)-;
- Zi and Z 2 are each independently methyl or 6'butt-butoxy-nuclear
- M 2 is zirconium
- the manufacturing method of the said Crab 2 catalyst is concretely demonstrated to the Example mentioned later.
- the third catalyst represented by Chemical Formula 3 may contribute to making a copolymer having a molecular weight intermediate between the first catalyst and the second catalyst.
- M 3 is titanium
- 3 ⁇ 4 and 3 ⁇ 4 are halogen
- Rl4 to Rl9 are in alkyl
- L 2 is d-) straight or branched alkylene
- D 2 is -0-
- a 2 is alkyl
- z is the oxidation number of the element J
- y is the number of bonds of the J elements.
- a carrier containing a hydroxy group on the surface may be used, and preferably, a carrier having a highly reactive hydroxyl group and a siloxane group, dried to remove moisture from the surface.
- a carrier having a highly reactive hydroxyl group and a siloxane group dried to remove moisture from the surface.
- silica, silica-alumina, silica-magnesia, etc., dried at a high temperature may be used, and these are usually oxides, carbonates, such as Na 2 O, K 2 C0 3 , BaS0 4 , and Mg (N0 3 ) 2 . Sulfate, and nitrate components.
- the mass ratio of catalyst to carrier is preferably 1: 1 to 1: 1000.
- the mass ratio of at least one selected from the group consisting of i) a catalyst represented by Chemical Formula 1, ii) a second catalyst represented by Chemical Formula 2, and a third catalyst represented by Chemical Formula 3 is 1: 100 to 1. It is preferred that it is 100: 1. It may be advantageous in terms of maintaining the activity and economical efficiency of the catalyst by showing the optimum catalytic activity in the mass ratio.
- co-catalysts may be additionally used to form the olefin polymer. Can be used to make.
- the cocatalyst may further include one or more of the cocatalyst compounds represented by the following Chemical Formulas 4, 5 or 6.
- R 30 may be the same as or different from each other, and each independently halogen; Hydrocarbons having 1 to 20 carbon atoms; Or a hydrocarbon having 1 to 20 carbon atoms substituted with halogen;
- n is an integer of 2 or more
- ⁇ is as defined in Formula 4 above;
- J is aluminum or boron
- E is a neutral or divalent Lewis base
- H is a hydrogen atom
- Z is a Group 13 element
- A may be the same as or different from each other, and each independently is an aryl group having 6 to 20 carbon atoms or an alkyl group having 1 to 20 carbon atoms, which is unsubstituted or substituted with halogen, hydrocarbon having 1 to 20 carbon atoms, alkoxy or phenoxy.
- Examples of the compound represented by Formula 4 include methyl aluminoxane, ethyl aluminoxane, isobutyl aluminoxane, butyl aluminoxane, and the like, and more preferred compound is methyl aluminoxane.
- Examples of the compound represented by Formula 5 include trimethyl aluminum, triethyl aluminum, triisobutyl aluminum, tripropyl aluminum, tributyl aluminum, dimethylchloro aluminum, triisopropyl aluminum, tri-s-butyl aluminum, tricyclopentyl aluminum , Tripentylaluminum, triisopentylaluminum, trinuclear silaluminum, trioctylaluminum, ethyldimethylaluminum, methyldiethylaluminum, triphenylaluminum, tri-P-rylylaluminum, dimethylaluminum methoxide, dimethylaluminum, trimethyl Boron, triethyl boron, triisobutyl boron, tripropyl boron ⁇ tributyl boron, and the like, and more preferable compounds are selected from trimethyl aluminum, triethyl aluminum, and triisobutyl aluminum.
- Examples of the compound represented by 6 include triethylammonium tetraphenylboron, tributylammonium tetraphenylboron, trimethylammonium tetraphenylboron, tripropylammonium tetraphenylboron, trimethylammonium tetra (P-tyl) boron, Trimethylammonium tetra ( ⁇ , ⁇ - dimethylphenyl) boron, tributyl ammonium tetra ( ⁇ -trifluoromethylphenyl) boron, trimethyl ammonium tetra ( ⁇ -trifluoromethylphenyl) boron,
- Trimethylammonium tetra ( ⁇ -tripolomethylphenyl) aluminum Trimethylammonium tetra ( ⁇ -tripolomethylphenyl) aluminum
- the supported catalyst according to the present invention may be prepared by supporting a cocatalyst compound on a carrier, supporting the first catalyst on the carrier, and supporting the cocatalyst 12 catalyst and / or the third catalyst on the carrier.
- the catalyst loading order may be changed as needed.
- a hydrocarbon solvent such as pentane, nucleic acid, heptane, or the like, or an aromatic solvent such as benzene, toluene, or the like may be used.
- the metallocene compound and the cocatalyst compound may be used in a form supported on silica or alumina.
- the present invention also provides a method for producing an olefin polymer comprising the step of polymerizing an olefin monomer in the presence of the supported catalyst.
- specific examples of the olefin monomers include ethylene, propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, 1-nuxene, 1-heptene, 1 -Octene, 1-decene, 1-undecene, 1-dodecene, 1-tetradecene, 1-nuxadecene, 1-atocene, and the like, and two or more thereof can be mixed and copolymerized.
- the olefin polymer is more preferably an ethylene / alpha olefin copolymer, but is not limited thereto.
- the content of the alpha olefin which is the comonomer is not particularly limited, and may be appropriately selected depending on the use, purpose, and the like of the olefin polymer. More specifically, it may be more than 0 and 99 mol% or less.
- the polymerization reaction may be carried out by homopolymerization with one olefin monomer or copolymerization with two or more monomers using one continuous slurry polymerization reactor, a loop slurry reactor, a gas phase reactor, or a solution reactor.
- the supported catalyst is an aliphatic hydrocarbon solvent having 5 to 12 carbon atoms, for example, pentane, nucleic acid, heptane, nonan, decane, and their isomers and aromatic hydrocarbon veins such as toluene and benzene, chlorine such as dichloromethane and chlorobenzene.
- the solution may be dissolved or diluted in a hydrocarbon solvent substituted with an atom or the like.
- the solvent used herein is preferably used by removing a small amount of water or air that acts as a catalyst poison by treating a small amount of alkylaluminum, and may be carried out by further using a cocatalyst.
- the ethylene-alpha olefin copolymer according to the present invention has a high molecular weight and a wide molecular weight distribution, is excellent in processability and mechanical properties, and can be usefully used for applications such as films.
- Figure 1 shows a complex viscosity graph according to the frequency of one embodiment and a comparative example of the present invention.
- Figure 3 shows a complex viscosity graph according to the frequency of one embodiment of the present invention.
- Figure 4 shows the Van Gurp Pal men Plot according to the frequency of one embodiment of the present invention.
- Figure 5 shows the relationship between the plateau delta value and the molecular weight of an embodiment of the present invention.
- the dried 250 mL Schlenk flask (first flask) was charged with 1.66 g (10 ⁇ l) of fluorene and made argon, and 50 mL of ether was injected under reduced pressure. After incubating to 0 ° C., the inside of the flask was replaced with argon, and 4.8 mL (12 ⁇ L) of 2.5 M n-BuLi nucleic acid solution was slowly added dropwise. The reaction mixture was slowly raised to phase silver and stirred for one day. Another 250 mL Schlenk flask was filled with 40 mL of nucleic acid, and then 2/713 g (10 ⁇ L) of (6-tert-supplementary nucleus) dichloro (methyl) silane was injected.
- the mixture was prepared to -78 ° C, and slowly added dropwise to the mixture prepared above. Slowly warmed up to room temperature and stirred for 12 hours.
- the mixture of the first flask was cooled to ⁇ 78 ° C., and the solution of the second flask was added dropwise thereto, then slowly sublimed to phase silver and stirred for 24 hours.
- 50 mL of water was added thereto, and the organic layer was extracted three times with ether (50 mL ⁇ 3).
- a moderate amount of MgS0 4 was added to the collected organic layer, followed by stirring for a while. After filtering and drying the solvent under reduced pressure, 5.8 g (molecular weight 566.96, 10.3 nimol, yield: 103%) of a yellow oily ligand compound were obtained.
- the obtained ligand compound was used for the preparation of the metallocene compound without separate separation process.
- the ligand compound synthesized in Step 1 was dissolved in 4 equivalents of methyl tert-butyl ether (MTBE) and 60 mL of toluene, and then 2 equivalents of n—BuLi Nucleic acid solution was added. After one day, all of the solvent inside the flask was removed under vacuum and dissolved in the same amount of toluene.
- MTBE methyl tert-butyl ether
- ZrCl 4 (THF) 2 was taken in a glove box and placed in a 250 mL Schlenk flask to prepare a suspension in which luluene was added.
- the lithiated ligand compound was slowly added to the toluene suspension of ZrCl 4 (THF) 2 . After the injection, the mixture was slowly cooled to room temperature, stirred for one day to proceed with the reaction, and then the ruluene in the mixture was removed by vacuum decompression to about 1/5 of the volume, and recrystallized by adding 5 times the volume of the remaining ruluene. .
- the mixture was filtered to avoid contact with outside air to obtain a metallocene compound, which was obtained at the top of the filter using some nucleic acid. After washing the filter cake (filter cake), it was weighed in a glove box to confirm the synthesis, yield and purity. As a result, 4.05 g (5.56 nimol, 55.6%) of an orange solid were obtained (purity: 100%, molecular weight: 727.08).
- the prepared nucleic acid slurry was filtered under argon, and the filtered solid and the filtrate were both evaporated under vacuum reduced pressure.
- the remaining filter cake (filter cake) and filtrate was confirmed through R, respectively, and weighed in a glove box to confirm the yield and purity.
- silica Into a 20 L sus high pressure reactor, add 3.0 kg of toluene solution to silica (Grace After adding 1,000 g of Davison Co., Ltd. SP952X, 200 ° C. firing), the reactor was stirred while raising the degree of silver to 40 ° C. After the silica was dispersed in 60 minutes, 6.0 kg of 10 wt% methylaluminoxane (MAO) / luene solution was added thereto, the temperature was raised to 60 ° C., and the mixture was stirred at 200 rpm for 12 hours. After the reactor temperature was lowered back to 40 ° C., the stirring was stopped and settling for 30 minutes, followed by decantation of the reaction solution.
- MAO methylaluminoxane
- the supported catalysts prepared in Preparation Examples 3-1 to 3-4 were introduced into an isobutane slurry loop process continuous polymerizer (reactor volume 140 L, reaction flow rate 7 m / s) to prepare an olefin polymer.
- 1-nuxene was used as the comonomer, The reactor pressure was maintained at 40 bar and the polymerization temperature was maintained at 88 ° C. Ml and density were controlled by 1 kH decene and hydrogenation.
- Example 5-11 Preparation of Olefin Polymer
- the supported catalyst prepared in Preparation Example 3-5 was introduced into an isobutane slurry loop process continuous polymerizer (reactor volume 140 L, reaction flow rate 7 m / s) to prepare an olefin polymer.
- 1 ⁇ nucleus was used as the comonomer, the reaction pressure was 40 bar and the polymerization temperature was 88 ° C. Ml and density were controlled by 1-nuxene and hydrogenation amount. Comparative example
- LG Chem's LUCENE TM SP330 product was prepared as a commercial mLLDPE prepared by a slurry loop process polymerization process. Physical properties of the copolymers prepared in Examples and Comparative Examples were measured as follows, and the results are shown in Tables 1 and 2 below.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US15/111,394 US9587056B2 (en) | 2014-12-15 | 2015-12-15 | Olefin based polymer having excellent processability |
EP15870285.2A EP3078682B1 (en) | 2014-12-15 | 2015-12-15 | Olefin-based polymer having excellent processability |
JP2016539116A JP2018502169A (ja) | 2014-12-15 | 2015-12-15 | 加工性に優れたオレフィン系重合体 |
CN201580007045.4A CN105960421B (zh) | 2014-12-15 | 2015-12-15 | 具有优良可加工性的基于烯烃的聚合物 |
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KR1020150170825A KR101747396B1 (ko) | 2014-12-15 | 2015-12-02 | 가공성이 우수한 올레핀계 중합체 |
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