WO2012102575A2 - 올레핀 블록 공중합체 - Google Patents
올레핀 블록 공중합체 Download PDFInfo
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- WO2012102575A2 WO2012102575A2 PCT/KR2012/000636 KR2012000636W WO2012102575A2 WO 2012102575 A2 WO2012102575 A2 WO 2012102575A2 KR 2012000636 W KR2012000636 W KR 2012000636W WO 2012102575 A2 WO2012102575 A2 WO 2012102575A2
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- C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
- C08F297/06—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type
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- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/04—Monomers containing three or four carbon atoms
- C08F210/06—Propene
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- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
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- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/14—Monomers containing five or more carbon atoms
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- 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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- C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
- C08F297/06—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type
- C08F297/08—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
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- C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
- C08F297/06—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type
- C08F297/08—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
- C08F297/083—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins the monomers being ethylene or propylene
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- 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
- C08F4/639—Component covered by group C08F4/62 containing a transition metal-carbon bond
- C08F4/6392—Component covered by group C08F4/62 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/63922—Component covered by group C08F4/62 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
- C08F4/63927—Component covered by group C08F4/62 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually bridged
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- 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
- C08F4/65922—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 containing at least two cyclopentadienyl rings, fused or not
- C08F4/65927—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 containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually bridged
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- 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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
Definitions
- the present disclosure relates to olefin block copolymers.
- the block copolymer refers to a copolymer having a plurality of repeating unit blocks or segments having different characteristics, and often has superior characteristics compared to conventional random copolymers or blends.
- the block copolymer may include a soft elastic block called a soft segment and a hard crystalline block called a hard segment, thereby exhibiting excellent properties such as excellent elasticity and heat resistance.
- a block copolymer may exhibit relatively excellent heat resistance because the block copolymer may exhibit elasticity above the glass transition temperature of the soft segment, and may exhibit thermoplastic behavior by reaching a temperature higher than the melting temperature.
- block copolymers described above triblock copolymers of styrene and butadiene (SBS), hydrogenated forms thereof (SEBS), and the like are known to be useful in various fields due to their excellent heat resistance and elasticity.
- SBS styrene and butadiene
- SEBS hydrogenated forms thereof
- This substrate is an oleic having improved processability with excellent elasticity and heat resistance. It is to provide a pin block copolymer and a method of manufacturing the same.
- an ethylene- or propylene-based repeating unit and an ⁇ -olefin-based repeating unit include first and second segments having different mole fractions, and a transmission electron microscope (TEM) image
- TEM transmission electron microscope
- an olepin block copolymer is provided in which the second segment on the first segment is in the form of a dispersed phase in the form of a closed curve.
- the dispersed phase in the form of a closed curve of the second segment is about 0.3 to 2.0 / im, for example, about 0.3 to 1.9, or about 0.4 to 1.8, or about 0.5 to 1.5 / i, Or about 0.5 to 1.3 / ⁇ .
- the first segment may be a hard segment including a first mole fraction of the ⁇ -olefin-based repeating unit
- the second segment may be a second mole fraction of the ⁇ -olefin group having a higher mole fraction than the first mole fraction. It may be a soft segment including a repeating unit.
- the mole fraction of the ⁇ -olefin-based repeating unit included in the entire block copolymer may have a value between the first mole fraction and the second mole fraction.
- the ethylene-based or propylene-based mole percentage of repeat units (mol%) of formula can be satisfied.
- the block copolymer may include about 80 to 98 mole% of ethylene-based or propylene-based repeating units, and a residual amount of ⁇ -olephine-based repeating units, and the total of the ethylene-based or propylene-based repeating units may be used.
- the relationship of equation 1 in the content range can be fulfilled:
- the olefin block copolymer may include 20 to 95 mol% of the hard segment and 5 to 80 mol% of the soft segment, and the hard segment may have one or more of softness, density, and melting point characteristic values. It can be higher than the segment.
- the olepin block copolymer may have a crystallization temperature (Tc) of about 95 to 120 ° C and a melting point (Tm) of about 110 to 135 ° C.
- the leupin block copolymer may have a density of about 0.85 g / cm 3 to 0.92 g / cm 3 .
- such an olefin block copolymer may have a weight average molecular weight of about 5,000 to 3,000,000, and a molecular weight distribution of about 2.5 or more and 6 or less.
- the ⁇ -olefin-based repeat unit is 1-butene, 1-pentene, 4-methyl-1-pentene, 1-nuxene, 1-heptene, 1-octene, 1-decene, 1 It may be a repeating unit derived from one or more ⁇ -olefins selected from the group consisting of -undecene, 1-dodecene, 1_tetradecene, 1-nuxadecene and 1-aitocene.
- an ethylene-based or propylene-based repeating unit and an ⁇ -olefin-based repeating unit include first and second segments having different mole fractions, and the first segment includes a second It comprises an ethylene or propylene-based repeating unit of the high mole-minute rate than the segment and the mole fraction of the first segment including the entire block copolymer ⁇ (mol 0/0), the ethylene-based or mole fractions of the propylene repeating units
- An olefin block copolymer is provided wherein the mole%) stratifies the relationship of Formula 1:
- such a block copolymer may include about 80 to 98 mol% of ethylene or propylene repeating units and a residual amount of ⁇ -olefin repeating units. And the relationship of Equation 1 in the entire content range of such ethylene-based or propylene-based repeating units.
- an olefin block copolymer can be provided which exhibits excellent processability with excellent heat resistance and elasticity.
- such olefin block copolymers can be prepared through simple process steps using a simplified catalyst system.
- these olefin block copolymers have excellent heat resistance and various physical properties. It can greatly contribute to the commercialization of one olefin elastomer, and the olefin elastomer can be suitably used in various fields to replace rubber materials.
- Example 5 shows a TEM photograph of the olefin block copolymer of Example 1, and the lower photograph shows an enlarged disperse phase in the form of a closed curve of the upper photograph.
- Figure 2 shows a TEM picture of the copolymer of Comparative Example 1, the lower picture is an enlarged view of the top picture.
- Figure 4 is a comparative example of an embodiment tube 5 of the olefin block copolymer of a hard segment mole fraction Y (mol 0/0), and ethylene-based repeating mole fraction X (mol 0/0) in a unit contained in the copolymer based on the test examples It is a linear regression graph compared to the copolymer.
- (olefin) block copolymer is a polymer copolymerized with ethylene or propylene and an ⁇ -olefin, and has a physical or chemical property such as ⁇ _ ⁇ 13 ⁇ 43 ⁇ 41 ⁇ 3 ⁇ 4 ⁇ i ". _ ⁇
- a copolymer comprising a plurality of repeating unit blocks or segments that are different from each other and have one or more property values such as ( ⁇ -fraction), crystallinity, density, or melting point and can be distinguished from each other in the polymer. May be referred to.
- Such a plurality of blocks or segments include, for example, ethylene-based or propylene-based repeating units and ⁇ -olefin-based repeating units, each of which repeating units Can be the first and second segments containing different amounts (mole fractions).
- the first segment may be a hard segment that is a hard crystalline block including a first mole fraction of an ⁇ -olefin-based repeat unit, and the second segment is a second higher than the first mole fraction.
- It may be a soft segment that is a soft elastic block containing a mole fraction of ⁇ -olefin-based repeating units.
- the first segment to be a hard segment may include a higher mole fraction of ethylene or propylene repeating units than the second segment to be a soft segment.
- the first mole fraction may be a lower mole fraction than the mole fraction of the ⁇ -olefin-based repeat unit calculated for the entire block copolymer
- the second mole fraction is an ⁇ -ole for the entire block copolymer. It can be a high mole fraction compared to the mole fraction of the fin-based repeat units.
- the plurality of blocks or segments may be distinguished from one another by one or more of other characteristics such as crystallinity, density, or melting point.
- the hard segment as the hard crystalline block described above may have a higher value than one or more of the characteristics of crystallinity, density, and melting point, as compared with the soft segment as the soft elastic block.
- the olefin resin block copolymer of one embodiment disclosed in the present disclosure in addition to the properties of the ethylene- or propylene-based repeating unit and the mole fraction, crystallinity, density or melting point of the ⁇ -olefin-based repeating unit, To be described in detail, it can also be defined by the dispersion characteristics of the segment identified by a certain ⁇ image.
- the leupin block copolymer of such an embodiment includes first and second _ 1 3 ⁇ 4 ⁇ : 3 ⁇ 4 stages containing ethylene or propylene repeating units and ⁇ -olefin repeating units in different mole fractions.
- the second segment on the first segment may be dispersed as a dispersed phase in the form of a closed curve.
- the olefin block copolymer of such an embodiment includes ethylene or propylene and repeating units derived from these by copolymerizing ⁇ -olefin, Due to the ⁇ -olefin-based repeating units derived from the ⁇ -olefin, excellent elasticity can be exhibited.
- a plurality of blocks or segments having different molar fractions of ethylene-based or propylene-based repeat units and ⁇ -olefin-based repeat units may have the form of a block copolymer comprising the first and second segments.
- the first segment may be a hard segment that is a hard crystalline block containing a first mole fraction of a-olefin-based repeat units
- the second segment may have a second mole fraction higher than the first mole fraction.
- It may be a soft segment that is a soft elastic block containing an ⁇ -olefin-based repeat unit.
- Each of the first and second segments may include other mole fractions of ethylene or propylene repeating units except the mole fraction of the ⁇ -olefin-based repeating unit.
- the first segment to be a hard segment It may comprise a higher mole fraction of ethylene or propylene repeating units than the second segment, which is a soft segment.
- the mole fraction of the ⁇ -olefin-based repeating unit included in the total blotting copolymer may have a value between the first mole fraction and the second mole fraction.
- the first mole fraction of the ⁇ -olefin-based repeating unit included in the first segment may be a lower mole fraction than the mole fraction of the ⁇ -olefin-based repeating unit calculated for the entire block copolymer
- the second The second mole fraction of the ⁇ -olefin-based repeating unit included in the segment may be a higher mole fraction than the mole fraction of the ⁇ -olefin-based repeating unit calculated for the entire block copolymer.
- the olefin block copolymer of one embodiment has a blocked form including a plurality of blocks or segments, for example, a first hard crystalline block having a higher molar fraction of an ethylene-based or propylene-based repeating unit.
- a high melting point from about 135 ° C., about 115 to 130 ° C., or about 115 to 125 ° C. This corresponds to a higher melting point compared to olefinic elastomers and the like in the form of previously known random copolymers.
- the block copolymer of one embodiment may exhibit improved heat resistance compared to olefinic elastomers such as ethylene- ⁇ -olefin random copolymers previously known, and at higher temperatures The excellent elasticity as an elastomer can be exhibited.
- a plurality of blocks or segments, for example, the first and second segments (hard segments and soft segments) included in the block copolymers of one embodiment may have a property value of one or more of other properties such as crystallinity, density or melting point. It can also be distinguished from each other. For example, a hard segment that is a hard crystalline block containing higher mole fractions of ethylene or propylene repeating units is a softer elastic block containing a higher mole fraction of? -Olefin repeating units. Compared with segments, one or more of the properties of crystallinity, density and melting point may exhibit higher values. This may be due to the higher crystallinity of the hard segment and the like.
- the characteristic values of each of these blocks or segments can be determined and / or differentiated by obtaining (co) polymers corresponding to each block or segment and measuring the characteristic values therefor.
- the block copolymer of one embodiment may exhibit excellent heat resistance with excellent elasticity.
- the block copolymer exhibits excellent elasticity, including soft segments, which are soft elastic blocks, and includes hard segments, which are crystalline blocks having higher melting points, and the like. Physical properties can be maintained. Therefore, the block copolymer may exhibit excellent heat resistance.
- the block copolymer of the above-described embodiment may exhibit dispersion characteristics of the segment identified by a certain ⁇ image.
- the first segment which is a hard segment
- the second segment which is a soft segment
- the dispersed phase of the second segment shown in black is uniformly distributed in the form of a closed curve on the matrix of the first segment represented in a lighter color.
- the closed curve form is a circular shape in which a curve surrounds a constant area, not a shape such as a radial shape in which the dispersed phase of the second segment is linear or a plurality of linear shapes, It may mean that it is oval or similar.
- the size of this dispersive phase may be defined as the size of a closed curve shape (e.g., the size of the red circular marking portion of FIG. 1) that is clearly distinguished from the surrounding matrix and brightness on the TEM image. "Diameter” defined as the length of the longest straight line connecting any two points at the outermost angle of the form (for example, the longest straight line of the straight line connecting any two points Length).
- the closed phase dispersed phase is about 0.3 to 2.0, or about 0.3 to 1.9 // D1, or about () .4 to 1.8 // m, or about 0.5 to 1.5 jm, or about It may have a diameter of 0.5 to 1.3 / mm 3.
- the diameter of the disperse phase in the form of a closed curve is, for example, bar-shaped, sheet-like or film-like block copolymer sample TEM, which is displayed as an image, and then measured or visually determined in consideration of the magnification on the TEM image. Can be calculated automatically from At this time, for the accuracy of the diameter measurement results, the diameter measurement value of the closed curve dispersion phase is about X, for example, about 5-30 closed curve dispersion phases are randomly taken to measure the diameter of each dispersion phase and then the average thereof. The value can be taken as the diameter measurement of the dispersed phase.
- the block copolymer sample may be appropriately chemically treated to observe the TEM.
- the sample was vapor stained with a 1 molar concentration of magnesium sulfate solution for 1 hour and observed by TEM, or the specimen was dissolved in TEM for about 100 ° C. After heat treatment with TEM can be observed.
- the above-described dispersion characteristics on the TEM image may reflect the high degree of blocking and / or the characteristic crystallinity exhibited by the block copolymer of one embodiment.
- the block copolymer of the embodiment may exhibit a high degree of blocking, and thus a high melting point and excellent heat resistance, and the uniform dispersion of the soft segment dispersed phase on the hard segment in the form of a closed curve is unique to the block copolymer.
- the block copolymers of one embodiment may have a range of crystallization temperatures (Tc), for example from about 95 to It can have a high crystallization temperature (Tc) of 120 ° C, or about 100 to 115 ° C, or about 102 to 110 ° C.
- Tc crystallization temperatures
- the block copolymer of one embodiment has such unique crystal characteristics, high crystallization temperature, etc., during the melt processing of the block copolymer, faster crystallization is performed after melting, thereby enabling a faster molding.
- the block copolymers of one embodiment may exhibit excellent processability and product formability.
- the dispersion properties and thus the crystal properties on the TEM image described above correspond to the novel properties of the bletok copolymers newly found in the present disclosure.
- the block copolymer of one embodiment exhibiting such new dispersing properties, etc., has been confirmed through Examples described later that the crystallization and processing after melting are faster to show excellent product formability.
- a block copolymer the above-described one embodiment are in the complete block copolymer contained a hard segment (the first segment) the mole fraction Y (mol 0/0), the ethylene-based or propylene-based mole fraction of repeating units of 3 ⁇ 4 Mole%) may satisfy the relationship of Formula 1:
- the characteristic of 3 (X-100)>(Y-100)> 6 ( ⁇ -100) may mean that the hard segment content in the block copolymer is higher even if the same halogen propylene is copolymerized.
- the block copolymer of one embodiment exhibits a higher degree of blotting, such blotting copolymer may exhibit more improved heat resistance and the like.
- the mole fraction Y (mol 0/0), and the mole fraction X (mol 0/0) of the ethylene or propylene-based repeating unit of the hard segment it can be measured by the following method, respectively By linearly regressing the result thereof, a characteristic corresponding to Equation 1 can be derived.
- the mole fraction of the hard segment can be calculated using a commercially available Time Domain NMR (TD NMR) device. More specifically, the TD NMR apparatus can be used to measure the free induction decay (FID) of the sample of the block copolymer, which can be expressed as a function of time and intensity. In addition, by changing four constant values of A, B, T2 fast and 1 0 «in Equation 2, a function expression closest to the graph of the FID function can be derived, and through this, A, B, T2 Fast and T2 slow values can be determined.
- FID free induction decay
- the spin-spin relaxation time (T2) relaxation calculated therefrom appears quickly
- the spin-spin relaxation time (T2) relaxation calculated therefrom appears slowly
- the smaller T2 value among the A, B, T2 fas , and T2 slow values determined above may be determined as the T2 value of the hard segment, that is, the T2 fast value
- the larger T2 value may be determined by the T2 value of the soft segment, that is, T2. This can be determined by the slow value.
- Hard segment (mol%) A / (A + B) x 100
- Intensity and Time are the values calculated from the FID analysis result
- T2 fast is the spin-spin relaxation time (T2) relaxation for the hard segment.
- T2 is the slow T2 (spin-spin relaxation time) relaxation values for the soft segment All.
- a and B are constants determined by fitting and have a value proportional to the content of each segment as a relative ratio of hard and soft segments, respectively.
- the mole fraction (mole%) of the ethylene or propylene repeating units included in the butyl copolymer is determined in consideration of the content of ethylene or propylene in the monomers used, or the block copolymer is determined by 1H-NMR or 13C-NMR. It can calculate by analyzing as.
- the mole fraction of the ethylenic repeating unit may be calculated by analyzing the block copolymer by 1 H-NMR to quantify methyl groups in the vicinity of about 0.9 ppm, or by analyzing the block copolymer by 13 C-NMR.
- the mole fraction of the system repeating unit can be calculated by analyzing the block copolymer by 13 C-NMR.
- an ethylene repeating unit or a propylene repeating unit and ⁇ -olefin such as 1-nuxene 13C-NMR analysis of a block copolymer including a system repeating unit to quantify a terminal carbon peak or a tertiary carbon (methine carbon) peak of a methyl branch or a butyl branch, thereby repeating the ethylene repeating unit or a propylene repeat
- the mole fraction of the unit may be calculated, or the mole fraction of the ⁇ -olefin-based repeating unit may be calculated.
- one embodiment the olefin block copolymer of the total repeating units of ethyl-series or polypropylene about 80 to 98 mole 0/0, or from about 80 to 93 mole 0/0, or from about 85 to 95 mol% Content (mole fraction).
- a group block copolymer is a multiple one with a teal-series or propylene-based repeating units in the mole fractions, the remaining mole percentage, e.g., 2 to 20 mole 0/0, or from about 7 to 20 mole 0/0
- the black may comprise about 5 to 15 mole percent of ⁇ -olefin-based repeat units.
- the block copolymer of one embodiment includes these mole fractions of the ⁇ -olefin-based repeating units, it may have excellent elasticity as an elastomer, and the mole fraction of the ethylene- or propylene-based repeating units is also optimized to have a high melting point. And excellent heat resistance.
- block copolymer of the embodiment may always satisfy the relationship of Formula 1 in the entire content range of each repeating unit described above. Therefore, the block copolymer may satisfy the properties of Equation 1 in the entire range substantially exhibiting the properties as an elastomer, thereby exhibiting better degree of blockability and thus heat resistance as an elastomer.
- the high the one embodiment the block copolymer can be about 20 to 95 mol%, or about 25 to 90 mole 0/0, the black comprises a hard segment of about 20 to 85 mol%, and the remaining mole fractions, for for example, 5 to 80 mole 0/0, or from about 10 to 75 mol%, lump may comprise a soft segment from about 15 to 80 mol%.
- the hard segment may mean a hard crystalline segment that contains an ethylene-based or propylene-based repeating unit at a higher mole fraction among a plurality of blocks or segments included in the block copolymer
- a segment may mean a soft elastic segment that includes an ⁇ -olefin-based repeat unit at a higher mole fraction.
- the block copolymer of one embodiment includes these hard segments and soft segments in a constant mole fraction, it may exhibit high melting point and higher heat resistance according to the hard segment along with excellent elasticity according to the soft segment.
- the block copolymer of one embodiment has a density of about 0.85 g / cm 3 to 0.92 g / cm 3 , or about 0.86 g / cm 3 to 0.90 g / cm 3 , and black about 0.86 g / cm 3 to 0.1 g / cm 3 ⁇ .
- the mean subdivision may be about 3,000,000, or about 10,000 to 1,000,000, or about 50,000 to 200,000.
- the block copolymer may have a molecular weight distribution (MWD; Mw / Mn) of about 2.5 to 6, or about 2.6 to 5 or about 2.5 to 3.5.
- block copolymer of one embodiment has such characteristics as density and molecular weight, it shows appropriate properties as an elastomer, excellent mechanical properties and processability, etc. Can be.
- the block copolymer of one embodiment has a relatively high molecular weight distribution of 2.5 or more, it can exhibit excellent processability and the like.
- the block copolymer includes an ⁇ -olefin-based repeating unit together with an ethylene-based or propylene repeating unit
- the ⁇ -olefin-based repeating unit includes 1-butene, 1-pentene, 4-methyl-1-pentene, Repeating units derived from ⁇ -olefins such as 1-nuxene, 1-heptene, 1-octene, 1-decene, 1-undecene, 1-dodecene, 1_tetradecene, 1-nuxadecene or 1-aitocene It may be, and may be repeating units derived from two or more selected from these.
- the olefin block copolymer of one embodiment described above may exhibit excellent elasticity due to the inclusion of the ⁇ -olefin-based repeating unit, and may exhibit excellent heat resistance due to high degree of blocking.
- the block copolymers of one embodiment may exhibit novel dispersion properties, crystal properties, higher crystallization temperatures, and the like, identified in the ⁇ image. Due to these characteristics, the block copolymer of one embodiment may cause faster crystallization during melt processing, so that the melt processing speed may be faster and the processability or product formability may be better. Accordingly, the block copolymer of one embodiment overcomes the limitations on the field of application of olefinic elastomers and can be applied to more various fields where heat resistance is required.
- the block copolymers of this embodiment can be applied to virtually any application to which elastomers have previously been applied. Furthermore, the block copolymers of one embodiment may be applied to a wider range of applications where previous olefinic elastomers have not been substantially applied due to low heat resistance and rubber based materials have been applied.
- the block copolymers of one embodiment may be used for automotive parts or interior materials, such as bumper or trim parts; Packaging materials, various electrical insulating materials; Shoe ⁇ Spit brush handle, flooring or gear handle, etc.
- Various household goods Various adhesives such as pressure-sensitive adhesives or hot melt adhesives; hose; Or it can be used for forming a wide variety of products, such as piping, it can be applied to many other fields and uses, of course.
- block polymer of one embodiment may be used alone, or may be used in combination with other polymers, resins, or various additives. It can be used in any form such as molded articles or fibers.
- the above-mentioned elepin block copolymer can be prepared by copolymerizing ethylene or propylene with ⁇ -olefin in the presence of a predetermined catalyst composition.
- the method for producing such an olefin block copolymer comprises ethylene or propylene in the presence of a catalyst composition comprising a metallocene catalyst having a Group 4 transition metal and a Lewis basic functional group, and a promoter having a Lewis acidic element and an organic functional group; copolymerizing ⁇ -olepin at about 70-150 ° C.
- the metallocene catalyst and the cocatalyst are in a first state in which the Lewis basic functional group and the Lewis acidic element have an acid-base bond under the copolymerization temperature, It can have the property of taking a second state in which no interaction between the catalysts occurs.
- the group 4 transition metal of the metallocene catalyst and the organic functional group of the cocatalyst can be taken to interact.
- a block copolymer of one embodiment is prepared according to the following technical principle. Can be predicted.
- the metallocene catalyst includes a Lewis basic functional group including a group 4 transition metal as a central metal element, and has a non-covalent electron pair, for example, a functional group including oxygen, nitrogen, or sulfur.
- An organic functional group is included together with an Lewis acidic element capable of bonding with a lone pair of electrons, for example, aluminum or boron.
- these catalysts and cocatalysts are in another selectable state, in a second state in which no interaction occurs between the metallocene catalyst and the cocatalyst, for example, the Lewis basic functional group and the Lewis acidic element are Lewis acid-base. It may take a second state that does not bind or does not interact with the Group 4 transition metal and the organic functional group. In particular, the catalyst and promoter Can be alternately taken between these first and second states under polymerization temperature.
- These catalysts and cocatalysts may alternately take these states as they travel between the first and second states, such that the energy difference between the first and second states is, for example, about 10 kcal / mol or less, or about It is expected to be as small as 5 kcal / mol or less, since this energy threshold can be easily shifted under the polymerization temperature.
- the energy difference may be measured by a person skilled in the art by a computational chemistry using a Gaussian program.
- the Lewis acid-base bonded state in the first state means not only the case where the Lewis basic functional group and the Lewis acidic element are connected by a common bond or a coordinating bond, but also the strength of van der Waals or the like.
- the interaction between the group 4 transition metal and the organic working container of the cocatalyst may refer to the case where they are interacting by van der Waals' forces or equivalent sig- matic bonds.
- the interaction between the metallocene catalyst and the promoter does not occur, that the Lewis basic functional group and the Lewis acidic element do not have Lewis acid-base bond between the catalyst and the promoter, It may refer to the case where the Group 4 transition metal and the organic functional group do not interact with each other.
- the metallocene catalyst and the promoter take the first state, the space around the central metal element of the metallocene catalyst is affected by the Lewis acid-base bond and the interaction of the Group 4 transition metal and the organic functional group. This can be narrowed. For this reason, in the first state, ethylene or propylene can be easily accessed and polymerized rather than a relatively large monomer, ⁇ -olefin.
- the metallocene catalyst and the promoter take the second state the space around the central metal element of the metallocene catalyst becomes relatively wider, so that the lepin is more easily than the relatively large monomer ⁇ -.
- the net jl ⁇ results in a higher content of ci-olefins can be combined.
- the alternating state is alternated between a first state in which a higher content of ethylene or propylene is polymerized and a second state in which a higher content of ⁇ -olefin is polymerized.
- the olefin block obtained by the polymerization to which the catalyst composition mentioned above was applied.
- the copolymer may be prepared by including a hard segment containing a higher mole fraction of ethylene or propylene repeating units and a soft segment containing a higher mole fraction of a-olefin repeating units.
- such an olefin block copolymer can be easily prepared by applying a simplified catalyst system, without having to apply a complicated catalyst system including two transition metal catalysts, and the like. Dispersion properties, crystal properties, and the like.
- the polymerization temperature may be about 70 to 150 ° C, or about 80 to 120 ° C, or about 90 to 110 ° C, or about 90 to 100 ° C. Under this polymerization temperature, the polymerization reaction of each monomer can occur efficiently while easily crossing the energy threshold between the first and second states. Therefore, under such polymerization temperature, an olefin block copolymer having excellent blockiness and crystallinity can be obtained more easily in high yield.
- a metallocene catalyst including a group 4 transition metal as a central metal element and having a Lewis basic functional group, for example, a functional group containing oxygen, nitrogen or sulfur having a lone pair of electrons.
- a metallocene catalyst including a group 4 transition metal as a central metal element and having a Lewis basic functional group, for example, a functional group containing oxygen, nitrogen or sulfur having a lone pair of electrons.
- the kind of the metallocene catalyst can be used is not particularly limited, the characteristics capable of appropriately alternating the above-described first and second states, ethylene or propylene in each state, and ⁇ -
- a metallocene compound represented by the following Chemical Formula 1 may be used:
- R1 to R17 are the same as or different from each other, and each independently hydrogen, a halogen, an alkyl group of d-o, an alkenyl group of C 2 -C 20, an aryl group of C 6 -C 20 , and C 7 -C Is an alkylaryl group of 20 or an arylalkyl group of C 7 -C 20
- L is a straight or branched chain alkylene group of d -do
- D is -0-, -S- or -N (R)-
- R is hydrogen, halogen, -0 alkyl group, C 2 -C 20 alkenyl group, or C 6 -C 20 aryl group
- A is hydrogen, halogen, -o alkyl group, C 2 -C 20 heterocycloalkyl group of C 20, - alkenyl, C 6 -C 20 aryl group, C 7 - C 20 alkylaryl group, C 7 of - C 20 ary
- Such a metallocene catalyst includes a group 4 transition metal M as a central metal element, including a functional group of "AD-" in which A is bonded to D of oxygen, sulfur or nitrogen having an unshared electron pair. Therefore, the non-covalent electron pair included in the functional group of "AD-" acts as a Lewis base to form a Lewis acidic element and an acid-base bond of the promoter.
- Group 4 transition metal M can interact with the organic functional groups of the promoter. As a result, the copolymerization of ethylene or propylene with ⁇ -olefin can proceed while the metallocene catalyst and the promoter take alternately the first and second states described above.
- the C,-C 20 alkyl group includes a linear or branched alkyl group, specifically, methyl, ethyl, propyl, isopropyl, n-butyl, tert-butyl, pentyl, nuclear, hep And the like, but are not limited thereto.
- the C 2 -C 20 alkenyl group includes a straight or branched alkenyl group, and specifically, may include an allyl group, ethenyl group, propenyl group, butenyl group, or pentenyl group, but is not limited thereto. It is not.
- the C 6 -C 20 aryl group includes a monocyclic or condensed aryl group, and specifically includes a phenyl group, biphenyl group, naphthyl group, phenanthrenyl group, or fluorenyl group, but is not limited thereto.
- the c 5 - c 20 of the heteroaryl group include a monocyclic or condensed ring containing a hetero aryl group, a carbazolyl group, a pyridyl group, a quinoline group, an isoquinoline group, a thiophenyl group, Pew La group, an imidazole group, oxazolyl group , Thiazolyl group, triazine group, tetrahydropyranyl group, or tetrahydrofuranyl group, and the like, but is not limited thereto.
- alkoxy group of -C 20 examples include a hydroxy group, a special group, a phenyloxy group, or a cyclonuxyloxy group, but are not limited thereto.
- Group 4 transition metal examples include titanium, zirconium, or hafnium, but only limited mix of _ ⁇ _
- R 1 to R 17 of Formula 1 are each independently hydrogen, methyl, ethyl, propyl, isopropyl, ⁇ -butyl, tert It may be a butyl group, a pentyl group, a nucleosil group, a heptyl group, an octyl group, or a phenyl group, and may be various substituents.
- L in Chemical Formula 1 is C 4 -C 8 It may be a straight or branched chain alkylene group of. Further, the alkylene group may be unsubstituted or substituted with an aryl group of d -C 20 alkyl group, c 2 -c 20 alkenyl group, or c 6 -c 20 of the.
- a in Formula 1 is hydrogen, methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, tert-butyl group, methoxymethyl group, tert- appendylmethyl group, -Hydroxyethyl group, ⁇ methyl _ methoxyethyl group, tetrahydropyranyl group, tetrahydrofuranyl group, etc., and other various substituents.
- metallocene compound represented by Formula 1 may include a compound represented by Formula 2 below, but is not limited thereto.
- a promoter having an organic functional group and elements such as Lewis acidic elements, for example, aluminum or boron it is possible to use.
- the kind of such promoter is not particularly limited, but a representative example of such a promoter may include a 5 l crude catalyst compound represented by the following Chemical Formula 3:
- R 18 may be the same or different from each other, and each independently a hydrocarbon having 1 to 20 carbon atoms; Or carbon atoms substituted with halogen To 20 to 20 hydrocarbons; n is an integer of 2 or more, for example, an integer of 2-6.
- a promoter includes aluminum as a Lewis acidic element and includes an organic functional group of R18, and is appropriately combined with a Lewis acid-base bond with a metallocene catalyst such as Chemical Formula 1 described above, while Group 4 of the metallocene catalyst It can interact with transition metals.
- a metallocene catalyst such as Chemical Formula 1
- the energy difference between the first state and the second state is not large, and the metallocene catalyst and the promoter are in the first and second states under the aforementioned copolymerization temperature. It is possible to cause the copolymerization of ethylene or propylene and ⁇ -lephine to proceed alternately.
- such a cocatalyst may be used with, for example, the metallocene catalyst of Formula 1, etc., to exhibit suitable polymerization activity with respect to ethylene or propylene and ⁇ -olefin.
- an olefin block copolymer of one embodiment exhibiting high crystallinity, blockiness, and the like can be obtained more easily.
- Examples of such cocatalyst compounds of Formula 3 include methyl aluminoxane, ethyl aluminoxane, isobutyl aluminoxane, or butyl aluminoxane, and among these, methyl aluminoxane may be representatively used.
- the catalyst composition containing the metallocene catalyst and the promoter described above can be obtained by a conventional method such as bringing the promoter into contact with the metallocene catalyst.
- all promoters may be brought into contact with the metallocene catalyst simultaneously or sequentially. In this case, it may be more advantageous in terms of the interaction between the metallocene catalyst and the promoter in contacting the promoter such as Formula 3 having Lewis acidic element with the metallocene catalyst before other promoters.
- the molar ratio of the metallocene catalyst and the cocatalyst may be about 1 / 5,000 to 1/2, 1 / 1,000 l 0, or about 1/500 to 1/20.
- the interaction between the metallocene catalyst and the promoter can be properly caused, and the activity of the metallocene catalyst can be suppressed from being reduced due to the excessive promoter, and the process unit cost can be suppressed from rising. .
- an aliphatic hydrocarbon solvent such as pentane, nucleic acid, heptane, or the like, or an aromatic such as benzene or toluene Hydrocarbon-based solvents may be used.
- the metallocene catalyst or cocatalyst may be used in a form supported on a carrier such as silica or alumina.
- the olefin by a method comprising copolymerizing a monomer of ethylene or propylene, and the ⁇ -olefin Block copolymers can be prepared.
- the ⁇ - olefin is 1-butene, 1 X pen, 4-1-pentene, 1 haeksen, 1_-heptene, 1-octene, ⁇ _-decene, 1-undecene, 1-dodecene, 1-tetradecyl
- One or more selected from the group consisting of sen, 1-nuxadecene and 1-atocene may be used.
- a method for preparing an olefin block copolymer according to another embodiment may be performed according to the conditions for preparing a conventional olefin copolymer except for the above-mentioned matters.
- Specific examples of such copolymerization conditions are described in the Examples below. In the following, some examples are presented for better understanding. However, the following examples are presented for illustration, and the scope of rights is not limited to the following examples.
- a Grignard reagent tert-Bu-0- (CH 2 ) 6 MgCl solution l.Omole was obtained from the reaction between the tert-Bu-0- (CH 2 ) 6 Cl compound and Mg (0) in THF solvent.
- the Grignard compound prepared above was added to a flask containing MeSiCl 3 compound (176.1 mL, 1.5 mol) and THF (2. () L) at ⁇ 30 ° C., After stirring at room temperature for 8 hours or more, the filtered solution was dried in vacuo to obtain a compound of tert-Bu-O- (CH 2 ) 6 SiMeCl 2 (yield 92%).
- the structure of the ligand was confirmed by 1 H-NMR.
- 1,2,3,4-tetrahydroquinoline (l, 2,3,4-tetrahydroquinoline, 957mg, 7.185mmol) was dissolved in THF (lOml), stirred at -78 ° C for 30 minutes, nBuLi (2.87ml , 7.185 mmol) was added to the syringe in a nitrogen atmosphere. After raising the temperature to room temperature and sufficiently stirring for 3 hours, the temperature was lowered to -78 ° C again, and then reacted by adding CO 2 gas. After the temperature was raised to room temperature, the remaining C0 2 gas was removed by stirring.
- Toluene was added to 10 500 ml glass reaction vessel, 1-nuxene or 1-octene was added, and 10 wt% toluene solution of MAO (methylaluminoxane) was added thereto. Subsequently, an ImM toluene solution of the compound ((tert-Bu-0- (CH 2 ) 6 ) MeSi (9-C 13 H 9 ) 2 ZrCl 2 ) prepared in Preparation Example 1 was added to the reaction vessel. Methylene was added to initiate polymerization. Stir for a period of time, vent,
- an olefin block copolymer was prepared while varying the content of 1_nuxene or 1-octene in the total content of monomers including 1-nuxene or 1-octene and ethylene.
- the copolymers obtained in Examples 1 to 8 and Comparative Examples 1 to 16 were melted at 220 ° C. for 3 minutes using a micro injection molding machine (Micro Injection Molding System, model name: Haake Minijet II, manufactured by Thermo Electron), and 40 ° C. After injection to 400bar in the rectangular bar type of the mold was maintained for 30 seconds, and then aged at 250bar for 60 seconds to obtain a sample of the rectangular bar (64mm * 12.7mm * 3.2mm) form. These samples were cryo-microtome and then used for TEM experiments by vapor staining with a 1 molar concentration of magnesium sulfate solution for 1 hour with reference to Microscopy and Microanalysis 14, 126-137, 2008.
- the content (mole fraction) of the hard segments of Examples 1 to 8 and Comparative Examples 2 to 16 was calculated using a commercially available Time Domain NMR (TD NMR; trade name Minspec manufactured by Bruker Optics).
- TD NMR Time Domain NMR
- FID Free Induction Decay
- FIG. 3 the measured FID is represented as a function of time and intensity.
- Equation 2 four constant values of A, B, T2 fast and T2 slow were changed to obtain the closest functional equations from the graph of the FID function, and through this, A, B, T2 fast and T2 The slow value was determined.
- the spin-spin relaxation time (T2) relaxation calculated therefrom appears to be fast
- the spin-spin relaxation time (T2) relaxation calculated therefrom is known to be slow. Therefore, the smaller T2 value among the A, B, T2 fast and T2 slow values determined above is determined as the T2 value of the hard segment, that is, the T2 fast value
- the larger T2 value is the T2 value of the soft segment, that is, the T2 slow value. Determined.
- the content (mol%) of the hard segment was calculated with the constants of A and B.
- Hard segment (mol%) A / (A + B) x 100
- Intensity and Time are the values calculated from the FID analysis results
- T2 fast is the spin-spin relaxation time (T2) relaxation for the hard segment.
- Value is the spin-spin relaxation time (T2) relaxation for the soft segment.
- a and B are constants determined by fitting, and have a value proportional to the content of each segment as a relative ratio of hard and soft segments, respectively.
- the copolymer hard segment mole fraction of Y (mol%) and, to then calculate the mole fraction X (mol 0/0) of butyl-series repeating units, respectively, butyl mole fraction of the-series repeating units in X of (mol 0/0) showing a mole fraction Y (mol 0/0) of the hard segment in accordance with, and by these data, the linear regression to obtain a state equation of these type of the linear function.
- the block copolymer of the embodiment has an ethylene repeating unit content of about 98 mol% or less, and in the region where the block copolymer can be an olefin elastomer, the value of the linear function is (Y -100)> 6 (X-100) was confirmed to satisfy the relationship of equation 1. On the contrary, in the case of the copolymers of Comparative Examples 2 to 16, it was confirmed that the relationship of Equation 1 was not satisfied. In addition, the copolymer of the embodiment was confirmed that even if the content of the ethylene repeating unit is the same, the content of the hard segment is very high, the degree of the hard segment and soft segment blotting is very high.
- the temperature was raised to 200 ° C at 20 o C / min with equilibration at 30 ° C, and then maintained at that temperature for 5 minutes to maintain the copolymer sample. Thermal history was removed. Decrease the temperature to 10 ° C / min up to 10 ° C again and confirmed the exothermic peak that is large for the crystallization temperature. After holding at 10 ° C for 1 minute, the temperature was increased to 10 ° C / min to 200 ° C, then maintained at that temperature for 1 minute, and then lowered to 30 ° C to complete the experiment.
- the block copolymer of the example has a higher mole fraction of hard segments, even though it has the same mole fraction and density level of ethylene repeating units as compared to the copolymer of the comparative example. It was confirmed to have a blocked form.
- block copolymer of the example showing the novel characteristics described above exhibited higher melting point and better heat resistance than the comparative example.
- block copolymer of the embodiment is a block copolymer of a predetermined amount of ⁇ -olefin has a certain level of density, excellent as an elastomer It was confirmed to exhibit elasticity.
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Abstract
Description
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JP2013550434A JP2014503027A (ja) | 2011-01-27 | 2012-01-27 | オレフィンブロック共重合体 |
US13/980,741 US9056939B2 (en) | 2011-01-27 | 2012-01-27 | Olefin block copolymer |
SG2013055975A SG192088A1 (en) | 2011-01-27 | 2012-01-27 | Olefin block copolymer |
EP12739499.7A EP2669303A4 (en) | 2011-01-27 | 2012-01-27 | OLEFIN BLOCK COPOLYMER |
CN2012800069129A CN103347915A (zh) | 2011-01-27 | 2012-01-27 | 烯烃嵌段共聚物 |
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CA3103869A1 (en) * | 2019-12-26 | 2021-06-26 | Star Thermoplastic Alloys & Rubbers, Inc. | Thermoplastic elastomer composition for overmolding polyamides |
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US5436305A (en) * | 1991-05-09 | 1995-07-25 | Phillips Petroleum Company | Organometallic fluorenyl compounds, preparation, and use |
IT1264406B1 (it) * | 1993-05-11 | 1996-09-23 | Spherilene Srl | Copolimeri amorfi dell'etilene con alfa-olefine e procedimento per la loro preparazione |
JP3572325B2 (ja) * | 1995-10-20 | 2004-09-29 | 東ソー株式会社 | オレフィン重合用触媒およびそれを用いたポリオレフィンの製造方法 |
KR100579843B1 (ko) * | 2003-04-01 | 2006-05-12 | 주식회사 엘지화학 | 혼성 담지 메탈로센 촉매 및 그의 제조방법과 이를 이용한폴리올레핀의 제조방법 |
CN100475863C (zh) * | 2003-08-22 | 2009-04-08 | 三井化学株式会社 | 丙烯类无规共聚物及其用途 |
KR100690345B1 (ko) * | 2004-09-03 | 2007-03-09 | 주식회사 엘지화학 | 담지 메탈로센 촉매, 그 제조방법 및 이를 이용한폴리올레핀의 제조방법 |
CN103172961B (zh) * | 2005-03-17 | 2016-08-17 | 陶氏环球技术有限责任公司 | 利用乙烯/α-烯烃共聚体对热塑性塑料的抗冲改性 |
DE602006004493D1 (de) * | 2005-03-17 | 2009-02-12 | Dow Global Technologies Inc | Ethylen / alpha-olefin block-copolymere |
BRPI0812613A2 (pt) | 2007-07-09 | 2019-02-19 | Dow Global Technologies Inc | fibra adequada para artigos têxteis, composição adequada para fibras e pano |
BRPI0905778B1 (pt) | 2008-01-30 | 2019-04-30 | Dow Global Technologies Inc. | COMPOSIÇÃO DE INTERPOLÍMERO EM BLOCOS DE ETILENO/a-OLEFINA, INTERPOLÍMERO EM BLOCOS DE PROPILENO/a-OLEFINA, ARTIGO E PROCESSO PARA POLIMERIZAÇÃO DE UM OU MAIS MONÔMEROS POLIMERIZÁVEIS POR ADIÇÃO |
KR101613165B1 (ko) | 2008-01-30 | 2016-04-18 | 다우 글로벌 테크놀로지스 엘엘씨 | 에틸렌/α-올레핀 블록 혼성중합체 |
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JP2010275443A (ja) * | 2009-05-29 | 2010-12-09 | Sumitomo Chemical Co Ltd | ポリプロピレンフィルム |
KR101154507B1 (ko) * | 2009-07-31 | 2012-06-13 | 주식회사 엘지화학 | 메탈로센 화합물, 이를 포함하는 촉매 조성물 및 이를 이용하여 제조된 올레핀계 중합체 |
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- 2012-01-27 EP EP12739499.7A patent/EP2669303A4/en not_active Withdrawn
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Title |
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MICROSCOPY AND MICROANALYSIS, vol. 14, 2008, pages 126 - 137 |
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SG192088A1 (en) | 2013-08-30 |
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JP2014503027A (ja) | 2014-02-06 |
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