WO2015046699A1 - 신규한 네오디뮴 화합물 및 이를 포함하는 디엔 중합용 촉매 - Google Patents
신규한 네오디뮴 화합물 및 이를 포함하는 디엔 중합용 촉매 Download PDFInfo
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- WO2015046699A1 WO2015046699A1 PCT/KR2014/003686 KR2014003686W WO2015046699A1 WO 2015046699 A1 WO2015046699 A1 WO 2015046699A1 KR 2014003686 W KR2014003686 W KR 2014003686W WO 2015046699 A1 WO2015046699 A1 WO 2015046699A1
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
- C07C53/126—Acids containing more than four carbon atoms
- C07C53/128—Acids containing more than four carbon atoms the carboxylic group being bound to a carbon atom bound to at least two other carbon atoms, e.g. neo-acids
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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
- C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F136/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F136/04—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F136/06—Butadiene
Definitions
- the present invention relates to a neodymium compound having a novel structure including a carboxylate ligand containing substituents of various lengths, and a catalyst for diene polymerization with improved catalytic activity.
- butadiene rubber an intermediate of petrochemicals as an alternative to low-volume natural rubber
- the butadiene rubber is known to be produced by a polymerization system using a rare earth metal containing catalyst.
- Non Patent Literature 1 the catalytic activity of the neodymium compound is only 7% (Non Patent Literature 1). This is because the existing neodymium carboxylate compound is prepared in an aqueous solution and then extracted with an organic solvent, and the neodecanoate as a ligand has a large amount of oligomeric neodymium carboxyl compound in the resultant. In other words, the oligomer-like structure lowers the yield of producing catalytically active species, resulting in lower catalytic activity when used as a catalyst for diene polymerization.
- the present invention introduces a carboxylate ligand containing alkyl groups of various lengths as substituents to induce three-dimensional changes around the neodymium center metal, neodymium of a novel structure that can suppress oligomerization To give a compound.
- the neodymium compound and a halogen compound are neodymium compound and a halogen compound; And by including an organometallic compound, solubility in the polymerization solvent is improved to provide a catalyst for diene polymerization with improved catalytic activity.
- neodymium compound represented by the following formula (1).
- R 1 is a linear or branched alkyl group having 6 to 12 carbon atoms
- R 2 and R 3 are independently of each other hydrogen or a linear or branched alkyl group having 2 to 8 carbon atoms,
- R 2 and R 3 are not hydrogen at the same time with each other.
- the neodymium compound and a halogen compound provides a catalyst for diene polymerization comprising an organometallic compound.
- a high efficiency catalyst for diene polymerization can be provided, and the production efficiency of the diene polymerization process using the same Can improve.
- Figure 1 shows a graph of the FT-IR analysis results for the neodymium compound synthesized in Example 1 of the present invention.
- Nd (neodecanoate) 3 compound containing a carboxylate ligand substituted with two methyl groups at the ⁇ position is representatively known.
- the Nd (neodecanoate) 3 compound is present in a large amount in the form of an oligomer such as the following Chemical Formula 2 during the polymerization process, it causes a decrease in the efficiency of conversion into catalytic active species, and thus has low catalyst activity. Has its drawbacks.
- a ligand of the neodymium compound is introduced as a ligand of the neodymium compound, and instead of a conventional neodecanoate group, a carboxylate containing an alkyl group having various lengths as a substituent at an ⁇ position is introduced to form an oligomer due to a steric change.
- one embodiment of the present invention provides a neodymium compound represented by Chemical Formula 1 having high catalytic activity.
- R 1 is a linear or branched alkyl group having 6 to 12 carbon atoms
- R 2 and R 3 are independently of each other hydrogen or a linear or branched alkyl group having 2 to 8 carbon atoms,
- R 2 and R 3 are not hydrogen at the same time with each other.
- R 1 is a linear or branched alkyl group having 6 to 8 carbon atoms
- R 2 and R 3 may be independently hydrogen or a linear or branched alkyl group having 2 to 6 carbon atoms, wherein R 2 and R 3 are not hydrogen at the same time with each other.
- the neodymium compound represented by Chemical Formula 1 of the present invention may be used as a specific example of Nd (2,2-diethyl decanoate) 3 , Nd (2,2-dipropyl decanoate) 3 , Nd (2, 2-dibutyl decanoate) 3 , Nd (2,2-dihexyl decanoate) 3 , Nd (2,2-dioctyl decanoate) 3 , Nd (2-ethyl-2-propyl decanoate ) 3 , Nd (2-ethyl-2-butyl decanoate) 3 , Nd (2-ethyl-2-hexyl decanoate) 3 , Nd (2-propyl-2-butyl decanoate) 3 , Nd ( 2-propyl-2-hexyl decanoate) 3 , Nd (2-propyl-2-isopropyl decanoate) 3 , Nd (2-butyl de
- the weight average molecular weight of the neodymium compound represented by Formula 1 may be 800 to 1400.
- the solubility of the neodymium compound represented by the formula (1) refers to the degree of clear dissolution without turbid phenomenon, it may be preferable to dissolve about 4g of the neodymium compound per 6g of non-polar solvent at room temperature.
- the catalytic activity of the neodymium compound represented by the formula (1) preferably exhibits catalytic activity of 600 kg [polymer] / mol [Nd] ⁇ h or more at a polymerization time of 30 minutes.
- the neodymium compound of the present invention as described above includes a carboxylate ligand containing alkyl groups of various lengths as substituents, thereby inducing steric changes around the neodymium center metal to prevent entanglement between compounds. Therefore, the oligomerization which was a problem of the conventional neodymium compound can be suppressed. Thereby, since high solubility with respect to a polymerization solvent can be ensured, it can be used as a catalyst for diene polymerization which requires high activity.
- the neodymium compound of the present invention may be prepared by substituting the chloride of neodymium chloride (III) chloride hydrate using a ligand substitution reaction. That is, the present invention can be prepared by the ligand exchange method of neodymium chloride hydrate and carboxylic acid in the presence of an organic solvent such as ethanol and distilled water.
- carboxylic acids are 2,2-diethyl decanoic acid, 2,2-dipropyl decanoic acid, 2,2-butyl decanoic acid, 2,2-dihexyl decanoic acid, 2,2-dioctyl decane And acid.
- Preparing a third mixed solution by dropping (adding) the first mixed solution while stirring the second mixed solution;
- It provides a method for producing a neodymium compound comprising the step of drying the organic layer.
- the organic solvent may be, for example, ethanol, or tetrahydrofuran as a component that serves to dissolve the organic acid and organic acid salts, such as carboxylate.
- the organic acid is not particularly limited as long as it can be used as a carboxylate ligand component bonded to the neodymium center metal, and examples thereof include carboxylic acid alkyl nonanoic acid or alkyl decanoic acid. At least one selected from the group consisting of diethyl decanoic acid, 2,2-dipropyl decanoic acid, 2,2-butyl decanoic acid, 2,2-dihexyl decanoic acid, 2,2-dioctyl decanoic acid A component is mentioned.
- the organic base is a component that serves to convert the organic acid into an organic acid salt, it may be used aqueous sodium hydroxide solution.
- the mixing ratio (molar ratio) of the organic acid: organic base may be 1: 0.97 to 1.0. If the content of the organic base is greater than about 1.0 or less than about 0.97, a large amount of by-products are generated, which may cause a disadvantage in that the yield of the neodymium compound is reduced.
- the mixing ratio (molar ratio) of the organic acid: neodymium chloride hydrate may be 1.0: 0.33 to 0.34 molar ratio. If the content of the neodymium chloride hydrate is less than 0.33 moles or more than 0.34 moles, the amount of by-products is increased, which may cause a decrease in yield of the neodymium compound.
- the third mixed solution may be prepared by dropping the first mixed solution into the second mixed solution, followed by stirring at room temperature for 15 hours or more.
- hexane may be used as the nonpolar solvent.
- the organic layer extraction step may be repeated three or more times.
- the neodymium compound, the halogen compound and the organometallic compound produced by the above method can be used as a catalyst for diene polymerization having high solubility in a polymerization solvent.
- the halogen compound is not particularly limited in kind, and examples thereof include an aluminum halogen compound or an inorganic halogen compound or an organic halogen compound in which aluminum is substituted with boron, silicon, tin, or titanium in the aluminum halogen compound.
- the organohalogen compound here may in particular be a t-alkylhalogen compound (alkyl having 4 to 20 carbon atoms).
- the organometallic compound is not particularly limited in kind, but for example, it may be preferable to use an alkylaluminum compound, an alkylmagnesium compound or an alkyllithium compound.
- representative examples of the organometallic compound include trimethylaluminum, triethylaluminum, tripropylaluminum, tributylaluminum, triisobutylaluminum, trihexylaluminum, diisobutylaluminum hydride, dibutylmagnesium, diethylmagnesium or n. -Butyl lithium, etc. are mentioned.
- the mixing ratio (molar ratio) of the neodymium compound, the halogen compound and the organometallic compound in the diene polymerization catalyst may be 1.0: 1.0 to 20: 5.0 to 200, preferably 1.0: 2.3: 12.5.
- a diene polymerization catalyst including the neodymium compound, a halogen compound, and an organometallic compound is added to a mixed solution of a diene and a nonpolar solvent in the presence of a nonpolar solvent, and then 15 minutes at a temperature of 20 to 200 ° C. It may be carried out a polymerization reaction to react for 3 hours.
- the concentration of the diene compound / non-polar solvent is 12 to 15 wt% before adding the catalyst for diene polymerization.
- the mixing ratio (molar ratio) of the neodymium compound: the diene compound may be preferably 1: 7500 to 19000. This represents the relative moles of neodymium compound used relative to the unit diene amount.
- the catalytic activity can be remarkably improved (1.37 x 10 3 kg [polymer] / mol [Nd] ⁇ h). Polydiene which is more than% can be manufactured.
- the nonpolar solvent used for the polymerization is preferably a nonpolar solvent which is not reactive with the catalyst components, for example, aliphatic hydrocarbon solvents such as pentane, hexane, isopentane, heptane, octane, isooctane; Cycloaliphatic hydrocarbon solvents such as cyclopentane, methylcyclopentane, cyclohexane, methylcyclohexane, ethylcyclohexane and the like; Aromatic hydrocarbon solvents, such as benzene, toluene, ethylbenzene, xylene, etc. are mentioned.
- aliphatic hydrocarbon solvents such as pentane, hexane, isopentane, heptane, octane, isooctane
- Cycloaliphatic hydrocarbon solvents such as cyclopentane, methylcyclopentane, cycl
- polyoxyethylene glycol phosphate which is a commonly used reaction terminating agent and 2,6-di-t-butyl paracresol which is an antioxidant are added.
- polybutadiene can be obtained by precipitating polybutadiene by adding methyl alcohol, ethyl alcohol or steam.
- the first mixed solution was added to the dropping funnel, and dropped to the second mixed solution at room temperature to prepare a third mixed solution. After the addition was completed, the mixture was stirred at room temperature for 15 hours.
- the third mixed solution was distilled under reduced pressure to remove all solvents, and 50 ml hexane and 50 ml of distilled water were added to the third mixed solution, placed in a separatory funnel, and the organic layer was extracted three times. Sodium sulfate was added to the combined organic layers, the mixture was stirred at room temperature for 10 minutes, and then the solution obtained by filtration was removed by distillation under reduced pressure. As a result, 0.7 g (yield 80%) of the title compound represented by the following formula for a white solid dissolved in hexane was obtained (see FIG. 1).
- FT-IR ⁇ 2954, 2920, 2873, 2852, 1680, 1511, 1461, 1415, 1377, 1317, 1296, 1199 cm -1
- the first mixed solution was added to the dropping funnel, and dropped to the second mixed solution at room temperature to prepare a third mixed solution. After the addition was completed, the mixture was stirred at room temperature for 15 hours.
- the third mixed solution was distilled under reduced pressure to remove all solvents, and 50 ml hexane and 50 ml of distilled water were added to the third mixed solution, placed in a separatory funnel, and the organic layer was extracted three times. Sodium sulfate was added to the combined organic layers, the mixture was stirred at room temperature for 10 minutes, and then the solution obtained by filtration was removed by distillation under reduced pressure. As a result, 1.1 g (yield 98%) of the title compound represented by the following formula of a yellowish blue liquid dissolved in hexane was obtained.
- FT-IR ⁇ 2955, 2923, 2853, 1682, 1555, 1503, 1453, 1411, 1360, 1307, 1288, 1261, 1185 cm -1
- the first mixed solution was added to the dropping funnel, and dropped to the second mixed solution at room temperature to prepare a third mixed solution. After the addition was completed, the mixture was stirred at room temperature for 15 hours.
- the third mixed solution was distilled under reduced pressure to remove all solvents, and 50 ml hexane and 50 ml of distilled water were added to the third mixed solution, placed in a separatory funnel, and the organic layer was extracted three times. Sodium sulfate was added to the combined organic layers, the mixture was stirred at room temperature for 10 minutes, and then the solution obtained by filtration was removed by distillation under reduced pressure. As a result, 1.64 g (yield 99%) of the title compound represented by the following formula of a yellowish blue solid dissolved in hexane was obtained.
- FT-IR ⁇ 2954, 2923, 2855, 1669, 1553, 1504, 1457, 1410, 1306, 1263, 1235 cm -1
- neodymium chloride hydrate 0.125 g (0.35 mmol) of neodymium chloride hydrate was added to a 250 ml round flask, and 20 ml hexane and 10 ml ethanol were added to dissolve to prepare a second mixed solution.
- the first mixed solution was added to the dropping funnel, and dropped to the second mixed solution at room temperature to prepare a third mixed solution. After the addition was completed, the mixture was stirred at room temperature for 15 hours.
- the third mixed solution was distilled under reduced pressure to remove all solvents, and 50 ml hexane and 50 ml of distilled water were added to the third mixed solution, placed in a separatory funnel, and the organic layer was extracted three times. Sodium sulfate was added to the combined organic layers, the mixture was stirred at room temperature for 10 minutes, and then the solution obtained by filtration was removed by distillation under reduced pressure. As a result, 0.38 g (yield 94%) of the title compound represented by the following formula of a yellowish blue solid dissolved in hexane was obtained.
- FT-IR ⁇ 2953, 2921, 2852, 1664, 1557, 1505, 1457, 1412, 1377, 1311, 1263 cm -1
- neodymium chloride hydrate 0.298 g (0.83 mmol) was added to a 250 ml round flask, and 20 ml hexane and 10 ml ethanol were added to dissolve to prepare a second mixed solution.
- the first mixed solution was added to the dropping funnel, and dropped to the second mixed solution at room temperature to prepare a third mixed solution. After the addition was completed, the mixture was stirred at room temperature for 15 hours.
- the third mixed solution was distilled under reduced pressure to remove all solvents, and 50 ml hexane and 50 ml of distilled water were added to the third mixed solution, placed in a separatory funnel, and the organic layer was extracted three times. Sodium sulfate was added to the combined organic layers, the mixture was stirred at room temperature for 10 minutes, and then the solution obtained by filtration was removed by distillation under reduced pressure. As a result, 0.89 g (yield 80%) of the title compound represented by the following formula of a yellowish blue liquid dissolved in hexane was obtained.
- FT-IR ⁇ 2954, 2923, 2855, 1669, 1553, 1504, 1457, 1410, 1306, 1263, 1235 cm -1
- Neodymium chloride hydrate 3.0 g (8.3 mmol) was added to a 500 ml round flask, and 150 ml hexane and 100 ml ethanol were added to dissolve to prepare a second mixed solution.
- the first mixed solution was added to the dropping funnel, and dropped to the second mixed solution at room temperature to prepare a third mixed solution. After the addition was completed, the mixture was stirred at room temperature for 15 hours.
- the third mixed solution was distilled under reduced pressure to remove all of the solvent, 100 ml hexane and 100 ml of distilled water were added to the third mixed solution, placed in a separatory funnel, and the organic layer was extracted three times. Sodium sulfate was added to the combined organic layers, the mixture was stirred at room temperature for 10 minutes, and then the solution obtained by filtration was removed by distillation under reduced pressure. As a result, 5.3 g (yield 96%) of the title compound represented by the following chemical formula of a currently used purple solid dissolved in hexane was obtained.
- the polymerization reaction was carried out in the same manner as in Polymerization Example 1, except that the neodymium compound of Example 2 was used instead of the neodymium compound of Example 1. After completion of the reaction, a part of the reaction solution was taken to measure the conversion, and based on this, the catalytic activity was calculated, and the results are shown in Table 1 below.
- the polymerization reaction was carried out in the same manner as in Polymerization Example 1, except that the neodymium compound of Example 3 was used instead of the neodymium compound of Example 1. After completion of the reaction, a part of the reaction solution was taken to measure the conversion, and based on this, the catalytic activity was calculated, and the results are shown in Table 1 below.
- the polymerization reaction was carried out in the same manner as in Polymerization Example 1, except that the neodymium compound of Example 4 was used instead of the neodymium compound of Example 1. After completion of the reaction, a part of the reaction solution was taken to measure the conversion, and based on this, the catalytic activity was calculated, and the results are shown in Table 1 below.
- the polymerization reaction was carried out in the same manner as in Polymerization Example 1, except that the neodymium compound of Comparative Example 1 was used instead of the neodymium compound of Example 1. After completion of the reaction, a part of the reaction solution was taken to measure the conversion, and based on this, the catalytic activity was calculated, and the results are shown in Table 1 below.
- the conversion rate is a value obtained by measuring the mass of a portion of the polymerization mixture taken after completion of the polymerization reaction, and heating the portion of the polymerization mixture at 120 ° C. for 10 minutes to remove all of the hexane solvent and residual butadiene, thereby removing the mass of the remaining polydiene. It calculated using the ratio of the measured value. Catalyst activity was calculated using the mass of polydiene produced and the mole number of the neodymium compound used for the polymerization reaction and the polymerization time based on the conversion rate.
- Examples 1 to 1 compared with the neodymium compound of Comparative Example 1 having a conventional neodecanoate ligand, Examples 1 to 1 wherein carboxylate containing an alkyl group having various lengths as a substituent at the ⁇ position was introduced as a ligand.
- the neodymium compound of 4 was used as the diene polymerization catalyst, it was confirmed that the catalytic activity is relatively high.
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Abstract
Description
구분 | 전환율(%) | 촉매활성(kg[중합체]/mol[Nd]·h) | ||
15분 | 30분 | 15분 | 30분 | |
실시예 1 | 82% | 97% | 1367 | 804 |
실시예 2 | 68% | 87% | 1122 | 725 |
실시예 3 | 73% | 90% | 1217 | 750 |
실시예 4 | 65% | 88% | 1084 | 733 |
비교예 1 | 62% | 73% | 1033 | 608 |
Claims (11)
- 청구항 1에 있어서,상기 R1은 탄소수 6 내지 8의 선형 또는 분지형 알킬기이며,상기 R2 및 R3는 서로 독립적으로 수소 또는 탄소수 2 내지 6의 선형 또는 분지형 알킬기이고,상기 R2 및 R3는 서로 동시에 수소가 아닌 것을 특징으로 하는 네오디뮴 화합물.
- 청구항 1에 있어서,상기 네오디뮴 화합물은 Nd(2,2-디에틸 데카노에이트)3, Nd(2,2-디프로필 데카노에이트)3, Nd(2,2-디부틸 데카노에이트)3, Nd(2,2-디헥실 데카노에이트)3, Nd(2,2-디옥틸 데카노에이트)3, Nd(2-에틸-2-프로필 데카노에이트)3, Nd(2-에틸-2-부틸 데카노에이트)3, Nd(2-에틸-2-헥실 데카노에이트)3, Nd(2-프로필-2-부틸 데카노에이트)3, Nd(2-프로필-2-헥실 데카노에이트)3, Nd(2-프로필-2-이소프로필 데카노에이트)3, Nd(2-부틸-2-헥실 데카노에이트)3, Nd(2-헥실-2-옥틸 데카노에이트)3, Nd(2-t-부틸 데카노에이트)3, Nd(2,2-디에틸 옥타노에이트)3, Nd(2,2-디프로필 옥타노에이트)3, Nd(2,2-디부틸 옥타노에이트)3, Nd(2,2-디헥실 옥타노에이트)3, Nd(2-에틸-2-프로필 옥타노에이트)3, Nd(2-에틸-2-헥실 옥타노에이트)3, Nd(2,2-디에틸 노나노에티트)3, Nd(2,2-디프로필 노나노에이트)3, Nd(2,2-디부틸 노나노에이트)3, Nd(2,2-디헥실 노나노에이트)3, Nd(2-에틸-2-프로필 노나노에이트)3 및 Nd(2-에틸-2-헥실 노나노에이트)3로 이루어진 군으로부터 선택된 것인 것을 특징으로 하는 네오디뮴 화합물.
- 청구항 1에 있어서,상기 네오디뮴 화합물은 Nd(2,2-디에틸 데카노에이트)3, Nd(2,2-디프로필 데카노에이트)3, Nd(2,2-디부틸 데카노에이트)3, Nd(2,2-디헥실 데카노에이트)3, 및 Nd(2,2-디옥틸 데카노에이트)3로 이루어진 군으로부터 선택된 것을 특징으로 하는 네오디뮴 화합물.
- 청구항 1에 있어서,상기 네오디뮴 화합물의 중량 평균 분자량은 800 내지 1400인 것을 특징으로 하는 네오디뮴 화합물.
- 청구항 1에 기재된 네오디뮴 화합물;할로겐 화합물; 및유기금속화합물을 포함하는 디엔 중합용 촉매.
- 청구항 6에 있어서,상기 할로겐 화합물은 알루미늄할로겐 화합물, 상기 알루미늄할로겐 화합물에서 알루미늄이 보론, 실리콘, 주석 및 티타늄으로 이루어진 군으로부터 선택된 것으로 치환된 무기할로겐 화합물 및 유기할로겐 화합물로 이루어진 군으로부터 선택된 것을 특징으로 하는 디엔 중합용 촉매.
- 청구항 7에 있어서,상기 유기할로겐 화합물은 t-알킬할로겐 화합물인 것을 특징으로 하는 디엔 중합용 촉매.
- 청구항 6에 있어서,상기 유기금속 화합물은 알킬알루미늄 화합물, 알킬마그네슘 화합물 및 알킬리튬 화합물로 이루어진 군으로부터 선택된 1종 이상인 것을 특징으로 하는 디엔 중합용 촉매.
- 청구항 9에 있어서,상기 유기금속 화합물은 트리메틸알루미늄, 트리에틸알루미늄, 트리프로필알루미늄, 트리부틸알루미늄, 트리이소부틸알루미늄, 트리헥실알루미늄, 디이소부틸알루미늄하이드라이드, 디부틸마그네슘, 디에틸마그네슘 및 n-부틸리튬으로 이루어진 군으로부터 선택된 1종 이상인 것을 특징으로 하는 디엔 중합용 촉매.
- 청구항 6에 있어서,상기 네오디뮴 화합물 : 할로겐 화합물 : 유기금속 화합물의 혼합비(몰비)는 1.0 : 1.0 내지 20 : 5.0 내지 200인 것을 특징으로 하는 디엔 중합용 촉매.
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CN201480000821.3A CN104736545B (zh) | 2013-09-26 | 2014-04-25 | 新型钕化合物及含有它的二烯烃聚合用催化剂 |
JP2015539521A JP5920539B2 (ja) | 2013-09-26 | 2014-04-25 | 新規のネオジム化合物及びこれを含むジエン重合用触媒 |
US14/462,172 US20150087500A1 (en) | 2013-09-26 | 2014-08-18 | Novel neodymium compound and catalyst for diene polymerization including the same |
US15/684,472 US10604602B2 (en) | 2013-09-26 | 2017-08-23 | Neodymium compound and catalyst for diene polymerization including the same |
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JP2017535621A (ja) * | 2014-11-20 | 2017-11-30 | エルジー・ケム・リミテッド | 共役ジエン系重合体の製造方法 |
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JP2017535621A (ja) * | 2014-11-20 | 2017-11-30 | エルジー・ケム・リミテッド | 共役ジエン系重合体の製造方法 |
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US10538607B2 (en) | 2015-06-24 | 2020-01-21 | Lg Chem, Ltd. | Catalyst composition for preparing conjugated diene-based polymer and conjugated diene-based polymer prepared using the same |
US10538608B2 (en) | 2015-06-24 | 2020-01-21 | Lg Chem, Ltd. | Catalyst composition for preparing conjugated diene-based polymer and conjugated diene-based polymer prepared using the same |
US10556976B2 (en) | 2015-06-24 | 2020-02-11 | Lg Chem, Ltd. | Catalyst composition for preparing conjugated diene-based polymer and conjugated diene-based polymer preparing using the same |
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CN107531853B (zh) * | 2015-06-24 | 2020-11-17 | Lg化学株式会社 | 用于制备基于共轭二烯的聚合物的催化剂组合物和使用其制备的基于共轭二烯的聚合物 |
US10995165B2 (en) | 2015-06-24 | 2021-05-04 | Lg Chem, Ltd. | Catalyst composition for preparing conjugated diene-based polymer and conjugated diene-based polymer prepared using the same |
KR20170074679A (ko) * | 2015-12-22 | 2017-06-30 | 주식회사 엘지화학 | 변성 공액 디엔계 중합체의 제조방법 및 이에 의해 제조된 변성 공액 디엔계 중합체 |
KR102019841B1 (ko) * | 2015-12-22 | 2019-09-10 | 주식회사 엘지화학 | 변성 공액 디엔계 중합체의 제조방법 및 이에 의해 제조된 변성 공액 디엔계 중합체 |
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EP2878603B1 (en) | 2016-09-28 |
EP2878603A4 (en) | 2015-07-08 |
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