WO2014209084A1 - 디엔을 포함하는 3원계 탄성 공중합체 및 이의 제조 방법 - Google Patents
디엔을 포함하는 3원계 탄성 공중합체 및 이의 제조 방법 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- 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
- C08F210/18—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers with non-conjugated dienes, e.g. EPT rubbers
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F236/02—Copolymers 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
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- C—CHEMISTRY; METALLURGY
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- 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
- C08F4/65904—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with another component of C08F4/64
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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
- C08F4/6592—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
- 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM 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
- C08L2314/00—Polymer mixtures characterised by way of preparation
- C08L2314/06—Metallocene or single site catalysts
Definitions
- Ternary elastic copolymer comprising a diene and a method of manufacturing the same
- the present invention relates to a terpolymer-based elastomer copolymer which is a copolymer of ethylene alpha olefin and diene, and a method for producing the same. More specifically, the present invention relates to a terpolymer-based elastomeric copolymer capable of stratifying simultaneously with excellent low temperature properties and elasticity (flexibility) and a method for producing the same.
- Alpha-olefins such as ethylene and propylene, and ethylene-based elastomeric copolymers of dienes such as ethylidene norbornene.
- EPDM rubber has a molecular structure that does not have an unsaturated bond in the main chain, and weather resistance, chemical resistance and heat resistance, etc. have properties superior to common conjugated diene rubber. Due to these characteristics, ternary elastic copolymers such as EPDM rubber are widely used in various automotive parts materials, electric wire materials, construction and industrial materials such as various hoses, gaskets, belts, bumpers or blends with plastics.
- Tertiary elastomeric copolymers such as EPDM rubbers have been produced by copolymerizing three monomers mainly using a catalyst including a vanadium compound, for example, a vanadium-based Ziegler-Natta catalyst.
- a vanadium compound for example, a vanadium-based Ziegler-Natta catalyst.
- vanadium-based catalysts need to use an excessive amount of catalyst with low catalytic activity, and thus have a disadvantage in that the residual metal content in the copolymer is increased. Accordingly, after the copolymer is prepared, catalyst removal and decolorization processes are required, and catalyst residues in the resin may cause deterioration of heat resistance, foreign matter generation, or vulcanization reaction.
- the preparation of the terpolymer-based elastomeric copolymer using the catalyst containing the vanadium compound is not easy to control the reaction temperature due to low polymerization activity and low polymerization conditions, it is not easy to control the intake amount of comonomers such as propylene and diene of the copolymer It was true that molecular structure control was difficult. Therefore, in the case of using a vanadium-based catalyst, for the production of ternary elastic copolymer of various physical properties There has been a limit.
- Such a Group 4 transition metal catalyst exhibits high polymerization activity in olefin polymerization, enables not only the production of a copolymer having a higher molecular weight, but also easy control of the molecular weight distribution and composition of the copolymer.
- the copolymerization of various comonomers include various metallocene-based 4 obtained from ligands of cyclopentadienyl, indenyl or fluorenyl. It is disclosed that by using a group transition metal catalyst, a ternary elastic co-polymer having a large molecular weight can be obtained with excellent polymerization activity.
- 5,902,867 discloses a method of lowering the viscosity of a polymer by widening the molecular weight distribution in order to improve the rough workability and extrusion processability of EPDM, but in this case, the polymer has a low molecular weight component in the crosslinked rubber product. There is a limit that the surface characteristics and low temperature characteristics are degraded due to separation during processing.
- Patent Document 0001 US Patent No. 5,229,478
- Patent Document 0002 US Patent No. 6,545,088 (Patent Document 0003) Korean Registered Patent No. 0488833
- Patent Document 0004 US Patent No. 5,902,867
- the present invention is to provide a ternary elastic copolymer capable of simultaneously stratifying excellent low-temperature properties and elasticity (flexibility).
- the present invention also provides a method for producing a ternary elastic copolymer capable of producing the ternary elastic copolymer with high productivity.
- the present invention is a copolymer of ethylene, C3-C20 alphalefin and diene obtained in the presence of a Group 4 transition metal catalyst,
- the weight average molecular weight measured by GPC is 100,000 to 500, 000
- the content of ethylene weight X and the density value of the copolymer (g / cin 3 ) y measured when the content of ethylene is X is 0.0000175214
- ternary elastic copolymers stratifying the relationship of x (x-75.65420571) + 0 ⁇ 875 ⁇ y ⁇ 0.0000175214x (x-75.65420571) +0.881.
- the present invention also, in the presence of a catalyst composition comprising a first transition metal compound represented by the following formula (1) and a second transition metal compound represented by the following formula (2), 40 to 80% by weight of ethylene, 15 to 55% by weight
- a catalyst composition comprising a first transition metal compound represented by the following formula (1) and a second transition metal compound represented by the following formula (2), 40 to 80% by weight of ethylene, 15 to 55% by weight
- a method of preparing a terpolymer-based elastomeric copolymer comprising the step of copolymerizing while continuously supplying a monomer composition comprising an alpha olefin having 3 to 20 carbon atoms and 4 to 6% by weight of a diene to the reactor:
- R 13 may be the same as or different from each other, and each independently hydrogen; Alkyl radicals having 1 to 20 carbon atoms; Alkenyl radicals having 2 to 20 carbon atoms; Aryl radicals having 6 to 20 carbon atoms; Silyl radicals; Alkylaryl radicals having 7 to 20 carbon atoms; Arylalkyl radicals having 7 to 20 carbon atoms; Or a metalloid radical of a Group 4 metal substituted with hydrocarbyl; Two adjacent different groups of Ris may be connected to each other by an alkylidine radical including an alkyl having 1 to 20 carbon atoms or an aryl radical having 6 to 20 carbon atoms to form an aliphatic ring or an aromatic ring;
- M is a Group 4 transition metal
- Qi and Q 2 may be the same as or different from each other, and each independently a halogen radical; Alkyl radicals having 1 to 20 carbon atoms; Alkenyl radicals having 2 to 20 carbon atoms; Aryl radicals having 6 to 20 carbon atoms; Alkylaryl radicals having 7 to 20 carbon atoms; Arylalkyl radicals having 7 to 20 carbon atoms; Alkyl amido radicals having 1 to 20 carbon atoms; Aryl amido radicals having 6 to 20 carbon atoms; Or 1 carbon Alkylidene radical of from 20 to 20.
- a ternary elastic copolymer and a method of preparing the same according to a specific embodiment of the present invention will be described in detail.
- ternary elastic copolymer used in the present specification may be defined as follows unless otherwise specified.
- the "ternary elastomeric copolymer” may refer to any elastomeric copolymer (for example, a crosslinkable random copolymer) in which ethylene, an alpha olefin having 3 to 20 carbon atoms, and three monomers of dienes are copolymerized. have.
- Representative examples of such "ternary elastomeric copolymers” include EPDM rubber which is a copolymer of ethylene, propylene and diene.
- terminal elastomeric copolymer does not refer to copolymers of only three monomers, and together with the ethylene, one or more monomers belonging to the category of alpha olefins and one or more monomers belonging to the category of dienes are copolymerized. It is, of course, also possible to include any of the above-mentioned elastomeric copolymers. For example, two kinds of alpha olefins of ethylene, propylene and 1-butene, and two kinds of ethylidene norbornene and 1,4-nuxadiene.
- the diene-coated elastic copolymer is also copolymerized with ethylene, alpha olefins, and three monomers belonging to the diene, respectively, and thus may belong to the category of "ternary elastic copolymer".
- a copolymer of ethylene obtained in the presence of a Group 4 transition metal catalyst, an alpha olefin having 3 to 20 carbon atoms, and a diene i) has a weight average molecular weight of 100,000 to 500,000 as measured by GPC, ii)
- the content of ethylene (weight X and the density value (g / citf) y of the copolymer measured when the content of ethylene is X is 0.0000175214 ⁇ ( ⁇ -75.65420571) + 0.875 ⁇ y ⁇ 0.0000175214x (x-75.65420571
- a ternary elastomer is provided that satisfies the relationship of +0.881 .
- Ternary elastomeric copolymer of such an embodiment is a copolymer of three monomers of ethylene, alpha olefin and diene in a certain content range, as measured by GPC about 100,000 to 500, 000, or about 150,000 to 400,000, or 200,000 To a relatively large weight average molecular weight of from 300,000. This large weight average molecular weight is achieved due to the excellent activity of the Group 4 transition metal catalyst, for example, the first and second transition metal compounds of Formulas 1 and 2, which belong to the metallocene series, As the ternary elastomer has such a large molecular weight, the ternary elastomer, for example EPDM rubber, can exhibit excellent mechanical properties.
- the terpolymer-based elastomer copolymer of the embodiment the ethylene content (% by weight) X, and the density value (g / ciif) y of the copolymer measured when the content of ethylene is X is 0.0000175214x (x- 75.65420571) + 0.875 ⁇ y
- Ternary elastic copolymers of one embodiment that satisfies this relationship may be in an optimized range without having a high density value compared to the content of ethylene contained therein.
- the tertiary elastomeric copolymer of the embodiment is in an optimized density range relative to the content of ethylene, the terpolymeric elastomeric copolymer has excellent low temperature properties . More elasticity and flexibility can be stratified at the same time.
- the relationship between the content of the ethylene X and the crystallization enthalpy y can be measured by the following method.
- density measuring equipment such as METTLER T0LED0XS104
- density values can be measured, for example, by the Hydrostatic Method in the ASTM D297 Density Determination method.
- These density values produce each copolymer sample in the form of a diameter of approximately 3 cm in diameter and 2 mm thick, and sample in air. by measuring the sample weight, and distilled water, the temperature of the distilled water in weight and it can be derive 'the density values.
- the content of ethylene contained in each copolymer is X-axis
- the density value measured for each of these copolymers is y-axis
- the data for each copolymer is displayed, and these data are linearly regressed.
- the relationship between the content X of ethylene and the density y can be derived.
- An example of such a relationship of X and y is shown in FIG. 1.
- the tertiary elastic copolymer has a higher density than that of ethylene compared to the EPDM rubber prepared for the Group 4 transition metal catalyst.
- the ternary elastic copolymer of the embodiment may be obtained in the presence of a Group 4 transition metal catalyst.
- the terpolymer-based elastomeric copolymer having the above characteristics can be produced, for example, with excellent productivity and yields peculiar to the Group 4 transition metal catalyst belonging to the metallocene series, and having a high molecular weight and thus excellent mechanical properties.
- excellent processability, elasticity, and flexibility can be simultaneously satisfied. '
- the copolymer of ethylene, an alpha olefin having 3 to 20 carbon atoms and diene may be 40 to 80% by weight, or 50 to 70% by weight of ethylene, 15 to 55% by weight of alpha olefin having 3 to 20 carbon atoms and 4 to 6 It may be a copolymer of weight percent diene.
- Such copolymers are continuously reacted in the presence of a catalyst composition with a monomer composition comprising 40 to 80% by weight of ethylene, 15 to 55% by weight of alpha olefins having 3 to 20 carbon atoms and 4 to 6% by weight of diene. It can be prepared by copolymerizing while supplying to, in particular, by including each monomer in the above ratio, it can exhibit a more excellent elasticity and flexibility.
- the tertiary elastic copolymer of the embodiment may have a positive value, and preferably, may be greater than about 0 and 5 or less, or about 0.01 to 3.5.
- the ternary elastomeric copolymer of the embodiment that satisfies this relationship has a long chain branching degree such that the LCB Index can represent a positive value, and thus exhibits excellent processability and is suitable for extrusion, and further improved elasticity and flexibility. With excellent mechanical properties, etc. can be simultaneously stratified.
- the LCB Index is a large angle of oscillation and high LAOS
- the Rubber Process Analyzer can measure the following: First, polymerize and manufacture ternary elastomeric co-polymers, and then, for each copolymer, the temperature (125 ° C) and frequency (0.2 Hz) determined by SIS V-50 Rubber Process Analyzer of SCARABAEUS INSTRUMENTS SYSTEMSS. The shear storage modulus behavior is measured by varying the strain from) to 1250%. Then, the first harmonics and the fifth harmonics are derived by FT conversion of the measured storage modulus, and then the ratio of the first harmonic of the storage modulus to the fifth harmonic can be calculated by the LCB Index. have.
- the LCB Index may be represented by the following general formula (1).
- the long chain branching degree is higher than that of the EPDM rubber prepared in the Group 4 transition metal catalyst, which was used previously, the LCB Index It has been found that can have a positive value.
- the ternary elastomeric copolymer of the above embodiment having high long chain branching degree and positive IXB Index can simultaneously satisfy excellent elasticity, flexibility and melt processability with excellent mechanical properties due to large molecular weight. It became. . . .
- the ternary elastic copolymer of the above embodiment is a product Re * Rc of a reactive ratio constant Re indicating a distribution state of ethylene in such a copolymer and a semiungular ratio constant Rc indicating a distribution state of alphalefin in the copolymer. May have a characteristic having a value less than about 1, for example, a value from about 0.50 to 0.99 have.
- kll is the growth reaction rate constant when ethylene is bonded to ethylene in the copolymer chain
- kl2 is alpha after ethylene in the copolymer chain
- Growth reaction rate constant when olefins are bound k21 is growth reaction rate constant when ethylene is bonded to alpha olefins in the copolymer chain
- k22 is alpha olefins after alpha olefins in the copolymer chain. Is the growth rate rate constant of.
- the growth reaction rate constant of kll, kl2, k21 and k22 can be measured by analyzing each copolymer using 13 C-NMR, for example, Triad Sequence analysis by Randall's method. Polymer Science: Polymer Physics edition, 1973, 11, 275-287] and Kakugo's method [Macromolecules 1982, 15, 1150] and the like can be used to calculate the value of Re * Rc from the analysis results of the 13 C-NMR. .
- the value of Re * Rc is less than about 1 in that the chain of the copolymer has a high probability that the alpha olefin will be bonded after the ethylene, and the alpha chain has a high probability that the ethylene will be bonded, and the copolymer chain may be It can be shown to have an alternating distribution between alphaolefins.
- a value of Re * Rc of about 1 may indicate that the copolymer chain has a random polymer between each monomer of ethylene and alphalefin, and the value of Re * Rc is greater than about 1.
- the same kind of monomers are bonded to each other, it may indicate that the copolymer chain has a form of a block copolymer.
- the terpolymer-based elastomeric copolymer of the embodiment has a value of Re * Rc of less than about 1, for example, from about 0.50 ' to 0.99, such copolymers are uniformly alternating of each monomer. ), And thus the copolymer may exhibit more excellent elasticity and flexibility required for EPDM rubber and the like. -..
- the terpolymer-based elastomeric copolymer of the embodiment has a density range capable of meeting appropriate physical properties such as EPDM rubber, for example, about 0.840 to 0.895 g / cm 3 , or about 0.850 to 0.890 g / cm 3 . Can be.
- the ternary elastic copolymer of the embodiment is EPDM rubber Pattern viscosities (1 + 4®125 ° C) within a range of suitable physical properties, for example, between about 1 MU and 180 MU, or between about 5 MU and 150 MU, or between about 20 MU and 130 MU.
- the pattern viscosity (1 + 4 @ 125 ° C) can be measured using the Monsanto Alpha 2000 equipment based on ASTM D1646-04, and if the pattern viscosity is less than 20 MU, there is no difference in machinability according to long chain branches without the pattern viscosity. If it exceeds 130 MU, it is possible to manufacture according to the present invention, but the resin productivity due to high viscosity is low, which is not economically advantageous.
- the alphalefin may be selected from the group consisting of propylene, 1-butene, 1'nucleene, 1-octene, 1-pentene, 4-methyl-1-pentene and 1-nucleene, 1 B-heptene, 1-decene, 1-undecene, 1-dodecene, 1-tridecene, 1- tetradecene, 1-pentadedecene, 1-nuxadecene, 1-heptadecene, 1-nonadecene, 9-methyl
- alpha olefins having 3 to 20 carbon atoms such as -1-decene, 11-methyl-1 dodecene and 12 ⁇ ethyl-1-tetradecene, may be used, and among these, alpha olefins having 3 to 10 carbon atoms are typical examples.
- a nonconjugated diene type monomer can be used as said diene.
- specific examples thereof include 5-1,4-nuxadiene, 1,5-heptadiene, 1,6-octadiene, 1,7-nonadiene 1,8-decadiene, 1,12-tetradecadiene, 3 Methyl methyl-1,4-nuxadiene, 4-methyl-1,4-nuxadiene, 5-methyl- 1,4-nuxadiene, 4-ethyl-1,4-nuxadiene, 3,3-dimethyl- 1,4-nuxadiene, 5-methyl-1,4-heptadiene, 5-ethyl-1,4 ⁇ heptadiene, 5-methyl-1,5_heptadiene, 6-methyl ⁇ 1,5 ⁇ heptadiene , 5-Ethyl-1,5-heptadiene, 4 ⁇ methyl-1, 4-octadiene, 5 ⁇ methyl-1, 4-octad
- a ternary system that satisfies the weight average molecular weight and LCB Index of the above-described embodiment by using 5 'ethylidene-2'norbornene, 5-methylene-2-norbornene, or 4'nuxadiene as appropriate Elastic copolymers can be prepared.
- VNB vinyl-2-norboene
- DCPD dicyclopentadiene
- Method for preparing such a copolymer is 40 to 80% by weight of ethylene, 15 to 55 in the presence of a catalyst composition comprising a first transition metal compound represented by the formula (1) and a second transition metal compound represented by the formula (2) And copolymerizing, continuously feeding the monomer composition comprising the alpha% of 3 to 20 carbon atoms and the diene of 4 to 6 wt% by weight into the reactor:
- Ri to R 13 may be the same as or different from each other, and each independently hydrogen; Alkyl radicals having 1 to 20 carbon atoms; Alkenyl radicals having 2 to 20 carbon atoms; Aryl radicals having 6 to 20 carbon atoms; Silyl radicals; Alkylaryl radicals having 7 to 20 carbon atoms; Arylalkyl radicals having 7 to 20 carbon atoms; Or a metalloid radical of a Group 4 metal substituted with hydrocarbyl; To the two different groups of neighboring Ris is possible to form the alkyl naphthyridin-connected to each other by a radical or an alicyclic ring containing a carbon number of 1-20 or an alkyl group having 6 to 20 carbon atoms in the aryl radical, and;
- M is a Group 4 transition metal
- Qi and 3 ⁇ 4 may be the same or different from each other, and each independently a halogen radical; Alkyl radicals having 1 to 20 carbon atoms; Alkenyl radicals having 2 to 20 carbon atoms; Aryl radicals having 6 to 20 carbon atoms; Alkylaryl radicals having 7 to 20 carbon atoms; Arylalkyl radicals having 7 to 20 carbon atoms; Alkyl amido radicals having 1 to 20 carbon atoms; Aryl amido radicals having 6 to 20 carbon atoms; Or 1 carbon Alkylidene radical of from 20 to 20.
- a certain amount of monomer ie, about 40 to 80% by weight, or about 50 to 70% by weight of ethylene, about 15 to 55% by weight of alpha olefins having 3 to 20 carbon atoms And about 4 to 6 weights of diene, while each of these monomers is prepared in a continuous polymerization process in the presence of the transition metal catalyst of Formula 1 or 2, thereby satisfying a specific relationship between the above-described content and density of ethylene. It was confirmed that the ternary elastic copolymer of one embodiment can be obtained with high yield and productivity.
- catalysts of the first and second transition metal compounds exhibit excellent catalytic activity as Group 4 transition metal catalysts, and in particular, can exhibit excellent selectivity and copolymerization reactivity with comonomers such as alphaolefins and dienes.
- the copolymerization can be carried out while the diene is uniformly distributed in the polymer chain with a relatively high content.
- the specific catalysts of Formulas 1 and 2 remain very stable in the pentagonal ring and hexagonal ring composition around the metal site by the quinoline-based amido group, and thus have structural characteristics that make it easy to access the monomers structurally. Seems. That is, the specific catalysts of Chemical Formulas 1 and 2 may form macromers having ' double bonds ' in the long chain branching form during the copolymerization of ethylene and alpha olefins based on the structural characteristics of the catalysts described above. The reaction can be copolymerized to form a ternary elastic copolymer having a long chain branch.
- the copolymerization proceeds in a continuous process while supplying a monomer composition containing each monomer continuously to a polymerization reactor, and thus the Monomers, in particular dienes, may be more evenly distributed in the polymer chain.
- the monomers in particular dienes
- the obtained terpolymer-based elastic copolymer has a density relative to the content of ethylene due to the uniformly distributed characteristics of each monomer.
- Ternary elastomeric copolymers can be produced with high productivity and yield, and such terpolymeric elastomeric copolymers are very preferably EPDM rubbers made of Group 4 transition metal catalysts which simultaneously stratify both excellent mechanical properties and improved elasticity. Can be used.
- the final prepared ternary elasticity may not satisfy the high molecular weight range of one embodiment, or the content and density of ethylene may not satisfy certain relationships.
- hydrocarbyl may refer to a monovalent functional group in a form in which a hydrogen atom is removed from hydrocarbon, and includes, for example, an alkyl group such as ethyl or an aryl group such as phenyl. can do.
- metalloid is a metal and an element showing intermediate properties between metal and nonmetal, and may refer to, for example, arsenic, boron, silicon, tellurium, and the like.
- M may refer to a Group 4 transition metal element such as titanium, zirconium or hafnium.
- first and second transition metal compounds as the first transition metal compound of Formula 1, one or more compounds selected from the group consisting of compounds of the following formulas may be suitably used:
- 3 ⁇ 4 and 3 ⁇ 4 may be the same as or different from each other, and are each independently hydrogen or a methyl radical
- M is a Group 4 transition metal
- 3 ⁇ 4 and 3 ⁇ 4 may be the same as or different from each other, and are each independently a methyl radical, dimethylimide Neither is a radical or a chlorine radical.
- M is a Group 4 transition metal, 3 ⁇ 4, and may be the same or different from each other, a methyl radical, each independently, dimethyl already Neither is a radical or a chlorine radical.
- the catalyst composition used in the preparation method of the other embodiment may further include at least one cocatalyst compound selected from the group consisting of the following Chemical Formulas 3, 4 and 5, in addition to the above-described first and second transition metal compounds: Can:
- R 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;
- R is as defined in Formula 3; D is aluminum or boron;
- L is a neutral or cationic Lewis acid
- 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 3 include methyl aluminoxane, ethyl aluminoxane, isobutyl aluminoxane or butyl aluminoxane.
- examples of the compound represented by the formula (4) include trimethylaluminum, triethylaluminum, triisobutylaluminum, tripropylaluminum tributylaluminum, dimethylchloroaluminum, triisopropylaluminum, tris-butylaluminum, tri Cyclopentylaluminum, tripentylaluminum, triisopentylaluminum, trinuclear aluminum, trioctylaluminum, ethyldimethylaluminum, methyldiethylaluminum, triphenylaluminum, triarylaluminum, dimethylaluminum methoxide, dimethylaluminum anoxide, trimethyl Boron, triethyl boron, triisobutyl boron, tripropyl boron or tributyl boron, and the like, among which trimethyl aluminum, Triethyl aluminum or triisobutyl aluminum
- the compound represented by Formula 5 includes a non-coordinating anion compatible with cations which are Bronsted acids. Suitable anions are those that are relatively large in size and contain a single coordinating complex comprising a metalloid. In particular, compounds containing a single boron atom in the anion moiety are widely used. In view of this, as the compound represented by Formula 5, a salt containing an anion including a coordinating complex compound containing a single boron atom may be appropriately used.
- Such compounds include trimethylammonium tetrakis (pentafluorophenyl) borate, triethylammonium tetrakis (pentafluorophenyl) borate in the case of trialkylammonium salts : tripropylammonium tetrakis (pentafluorophenyl) borate Tri (n-butyl) ammonium tetrakis (pentafluorophenyl) borate tri (2-butyl) ammonium tetrakis (pentafluophenyl) borate ⁇ , ⁇ -dimethylanilinium tetrakis (pentafluorophenyl) borate ⁇ , ⁇ -dimethylanilinium ⁇ - butyltris (pentafluorophenyl) borate ⁇ , ⁇ -dimethylanilinium benzyltris (pentafluorophenyl) borate ⁇ ,
- di- (i'propyl) ammonium tetrakis (pentafluorophenyl) bore o 'or dicyclonucleoammonium tetrakis (pentafluorophenyl) bore etc. are mentioned.
- trophylium tetrakis (pentafluorophenyl) bore 0 riphenylmethyllium Tetrakis (pentafluorophenyl) borate ' or benzene (diazonium) tetrakis (pentafluorophenyl) borate and the like.
- the catalyst composition comprising the above-described first and second transition metal compound and optionally a promoter compound, for example, the first and the crab 2 transition metal Contacting the compound with a promoter compound of Formula 3 or Formula 4 to obtain a mixture; And it may be prepared by a method comprising the step of adding the promoter compound of Formula 5 to the mixture.
- the molar ratio of the first transition metal compound: the second transition metal compound may be about 10: 1 to 1:10, and the total transition metal compound in which the first and second transition metal compounds are added together.
- the molar ratio of the promoter compound of Formula 3 or Formula 4 may be about 1: 5 to 1: 500, and the total transition metal compound:
- the molar ratio of the promoter compound of Formula 5 is about 1: 1: 1: Can be ten.
- the catalyst composition may further include a reaction solvent, and the reaction reaction solvent may include a hydrocarbon solvent such as pentane, nucleic acid or heptane; Benzene or the like, but the aromatic-based solvents such as toluene, 'but is not limited thereto only.
- a hydrocarbon solvent such as pentane, nucleic acid or heptane
- Benzene or the like but the aromatic-based solvents such as toluene, 'but is not limited thereto only.
- the alpha olefin included in the monomer composition propylene, 1-butene, 1-nuxene, 1-octene, 1-pentene, 4-methyl-1'pentene, 1-nuxene, 1 -Heptene, 1-decene, 1-undecene, or 1-dodecene may be used, and as the diene, a nonconjugated diene monomer may be used.
- monomers commonly used in the production of EPDM rubber for example, propylene as the alpha olefin, 5-ethylidene-2-norbornene as the diene, 1,4'nuxadiene or dicyclopentadiene, etc.
- the nonconjugated diene monomer of can be used suitably.
- the copolymerization step may be carried out at a temperature of about 100 to 170 ° C, or a temperature of about 100 to 160 ° C. If the copolymerization temperature is too low, it may be difficult to synthesize a terpolymer-based elastomer copolymer in which three monomers are uniformly distributed. In addition, when the polymerization reaction temperature is too high, the monomer or the prepared copolymer may be thermally decomposed. In addition, such copolymerization can proceed by solution polymerization, especially the continuous solution polymerization method. In this case, the catalyst composition described above may be used in the form of a homogeneous catalyst dissolved in such a solution.
- the copolymerization step may be performed while continuously supplying a catalyst composition comprising a first and a second transition metal compound, and optionally a cocatalyst, to the reactor in a solution state, and continuously discharging the copolymerized terpolymer based copolymer from the reaction vessel.
- the copolymerization step can be carried out continuously.
- the ternary elastic copolymer which has a long chain branch can be obtained more effectively with high productivity and a yield.
- a ternary elastic copolymer can be produced which can be very preferably used as EPDM rubber by exhibiting excellent low temperature properties, improved elasticity and flexibility, and the like.
- the manufacturing method of the copolymer which can manufacture such a tertiary elastic copolymer with high productivity and a yield is provided.
- Ternary elastomeric copolymers obtained according to the present invention overcome the limitations of EPDM rubber and the like made of metallocene group IV transition metal catalysts previously known, and can be striking excellent low-temperature properties, elasticity and flexibility with other properties , It can be used very preferably as EPDM rubber and the like, while utilizing the advantages unique to the Group 4 transition metal catalyst. [Brief Description of Drawings]
- 1 is a graph showing the relationship between the content and density of ethylene with respect to the ternary elastic copolymers prepared in Examples and Comparative Examples.
- N] titanium dimethyl) and ⁇ , ⁇ -dimethylanilinium tetrakis (pentafluorophenyl) borate and triisobutylaluminum were used as cocatalyst compounds.
- the first and second transition metal compounds were prepared and used in the same manner as in Examples 2 and 14 of Korean Patent No. 0,976,131, and the promoter compounds were the same as those used in Example 9 of Korean Patent No. 0,820,542.
- Cocatalyst compounds were prepared and used.
- first and second transition metal compounds examples include the above-mentioned [(1,2,3,4-tetrahydroquinolin-8-yl) tetramethylcyclopentadienyl-eta 5, kepa-
- N titanium dimethyl and [(2-methylindolin-7-yl) tetramethylcyclopentadienyl-eta 5, kepa—N] titanium dimethylol dissolved in nucleic acid and used at a rate of 51 to 54 ⁇ 1 per hour. It was added to the reaction.
- the above-described N, N-dimethylanilinium tetrakis (pentafluorophenyl) borate was used in a state dissolved in toluene, and charged into the reactor at a rate of 255 to 270 ⁇ ) 1 per hour.
- the above-mentioned triisobutylaluminum was used as an additional promoter compound dissolved in a nucleic acid, and was introduced into the reaction vessel at a rate of 4080 to 4200 ⁇ m per hour.
- the copolymerization was carried out while continuously supplying ethylene, which is a monomer, 950 g per hour, propylene, 820 to 950 g, and 5-ethylidene-2-norbornene to the reactor at a rate of 86 to 129 g per hour.
- the copolymerization temperature in the reaction vessel was controlled between 120 and 140 ° C. while increasing the feed rate of 5-ethylidene-2-norbornene in the vicinity of 140 ° C. from lmL / min to 0.5 mL / min.
- copolymerization was carried out by continuous solution polymerization, and the terpolymer-based elastomeric copolymers of Examples 1 to 7 were continuously prepared in a uniform solution state, and the polymerization solution continuously discharged from the top of the reactor was subjected to polymerization reaction under ethanol. After quenching, drying was carried out under reduced pressure in a vacuum oven at 60 ° C. to obtain the final copolymer of Examples 1-7.
- density data was derived using the density measuring equipment of METTLER TOLEDO XS 104, the density measurement method is ASTM Hydrostatic method was used in the density measurement method of D297. More specifically, after measuring the temperature of water to determine the density of water, the weight of the sample was measured in air and in water, respectively. A support was used to measure the weight of the floating sample in water, and density was derived using the following general formula (1).
- the copolymers obtained in Examples and Comparative Examples were subjected to SIS V-50 Rubber Process Analyzer from SCARABAEUS INSTRUMENTS SYSTEMSS at a strain of 0.2% at a temperature (125 ° C) and a frequency (0.2 Hz).
- the shear storage modulus behavior was measured while changing up to 1250%.
- the first storage harmonics (Harmonics) and the fifth harmonics (Harmonics) are derived by FT conversion of the measured storage modulus, and then the ratio of the first harmonic of the storage modulus to the fifth harmonic is calculated by LCB Index. Shown in
- the LCB Index may be represented by the following general formula (2).
- the copolymers of Examples 1 to 7 have a relationship between ethylene content X and density y of 0.0000175214 ⁇ ( ⁇ ⁇ 75.65420571) +0.875 ⁇ y ⁇ 0.0000175214 ⁇ ( ⁇ -75.65420571 ) +0.881, the LCB Index has a positive value, and Re * Rc is less than 1.
- the copolymer of Comparative Examples 1 to 4 has a higher density than that of the copolymer having an ethylene content similar to that of Example, so that the 0.0000175214x (x-75.6542057D + 0.875 ⁇ y ⁇ 0.0000175214 ⁇ ( ⁇ )
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EP14817033.5A EP2883890A4 (en) | 2013-06-28 | 2014-06-30 | TRINARY ELASTIC COPOLYMER COMPRISING A DIENE AND PROCESS FOR PREPARING THE SAME |
JP2015539528A JP2015532361A (ja) | 2013-06-28 | 2014-06-30 | ジエンを含む三元系弾性共重合体およびその製造方法 |
CN201480002702.1A CN104736579A (zh) | 2013-06-28 | 2014-06-30 | 弹性二烯三元共聚物及其制备方法 |
US14/442,674 US9650460B2 (en) | 2013-06-28 | 2014-06-30 | Elastic diene terpolymer and preparation method thereof |
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US9493593B2 (en) | 2013-06-28 | 2016-11-15 | Lg Chem, Ltd. | Elastic diene terpolymer and preparation method thereof |
US9650460B2 (en) | 2013-06-28 | 2017-05-16 | Lg Chem, Ltd. | Elastic diene terpolymer and preparation method thereof |
WO2014209082A1 (ko) | 2013-06-28 | 2014-12-31 | 주식회사 엘지화학 | 디엔을 포함하는 3원계 탄성 공중합체 및 이의 제조 방법 |
KR101585204B1 (ko) | 2013-06-28 | 2016-01-13 | 주식회사 엘지화학 | 디엔을 포함하는 3원계 탄성 공중합체 및 이의 제조 방법 |
CN109642060A (zh) * | 2016-08-11 | 2019-04-16 | Sabic环球技术有限责任公司 | 用于盖和封闭件的聚合物组合物 |
US20200172715A1 (en) * | 2018-11-30 | 2020-06-04 | Exxonmobil Chemical Patents Inc. | Blends of Cyclic Olefin Copolymers and Films Prepared Therefrom |
KR102419481B1 (ko) * | 2019-02-20 | 2022-07-12 | 주식회사 엘지화학 | 올레핀계 중합체 |
US11976146B2 (en) * | 2020-03-27 | 2024-05-07 | Dow Global Technologies Llc | Long-chain branched ethylene-based polymers |
JP2023520329A (ja) * | 2020-03-27 | 2023-05-17 | ダウ グローバル テクノロジーズ エルエルシー | 長鎖分岐エチレン系ポリマーを生成するためのプロセス |
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- 2014-06-30 EP EP14817033.5A patent/EP2883890A4/en not_active Withdrawn
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US20160289359A1 (en) | 2016-10-06 |
US9650460B2 (en) | 2017-05-16 |
JP2015532361A (ja) | 2015-11-09 |
CN104736579A (zh) | 2015-06-24 |
EP2883890A4 (en) | 2016-07-20 |
EP2883890A1 (en) | 2015-06-17 |
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