WO2024248593A1 - 열가소성 폴리에스테르 엘라스토머 수지 및 이의 제조방법 - Google Patents
열가소성 폴리에스테르 엘라스토머 수지 및 이의 제조방법 Download PDFInfo
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- WO2024248593A1 WO2024248593A1 PCT/KR2024/095856 KR2024095856W WO2024248593A1 WO 2024248593 A1 WO2024248593 A1 WO 2024248593A1 KR 2024095856 W KR2024095856 W KR 2024095856W WO 2024248593 A1 WO2024248593 A1 WO 2024248593A1
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- thermoplastic polyester
- polyester elastomer
- elastomer resin
- chemical formula
- repeating unit
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/672—Dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
Definitions
- the present invention relates to a thermoplastic polyester elastomer resin having excellent physical properties such as mechanical strength, elasticity, and compression-elastic recovery force, and a method for producing the same, while comprising a hard block having thermoplastic properties and a soft block having elastomeric properties (introducing PTMG and EO-PPG).
- Thermoplastic elastomer (TPE) resins include hard segments derived from thermoplastic polymers and having thermoplastic properties, and soft segments derived from elastomers, which are rubber-like substances, and having elastomeric properties. Compared to conventional thermosetting rubber, the hard blocks physically bonded by crystals are similar to chemical cross-linking called "vulcanization,” and the soft blocks are similar to non-crystalline rubber-like properties.
- thermoplastic polyester elastomer (TPEE) resins have high mechanical strength and excellent impact resistance, heat resistance, flexibility, and moldability, and are used in the manufacture of automobile parts, electrical and electronic parts, fibers, films, etc.
- the above TPEE resin mainly includes a tetramethylene ester crystalline hard block and a polyether polyol ester amorphous soft block.
- a tetramethylene ester crystalline hard block As raw materials for manufacturing the soft block of the above TPEE resin, polyethylene ether glycol (PEG), poly(1,2-propylene) glycol (PPG), polytetramethylene ether glycol (PTMG), etc. have been used.
- the TPEE resin manufactured using the above PEG as a raw material has a disadvantage of high moisture content characteristics, and the PPG has poor polymerization reactivity, so they are not often used as a raw material for manufacturing TPEE resin.
- the TPEE resin manufactured using the above PTMG as a raw material has good physical properties such as mechanical strength and elongation, but there is a limit to increasing physical properties such as elasticity and compressive elasticity recovery force to a target level or higher.
- thermoplastic polyester elastomer (TPEE) resin having excellent mechanical strength and improved elasticity and compressive elasticity recovery is obtained by increasing the incompatibility between a hard block and a soft block and controlling the crystallinity and crystallization rate of the soft block to a low level.
- the task of the present invention is to provide a thermoplastic polyester elastomer resin having excellent mechanical strength, elasticity and compression-elastic recovery force, and a method for producing the same.
- Another object of the present invention is to provide a composition or article comprising the thermoplastic polyester elastomer resin.
- thermoplastic polyester elastomer resin including a repeating unit (a) represented by the following chemical formula 1; a repeating unit (b) represented by the following chemical formula 2; and a repeating unit (c) represented by the following chemical formula 3, and satisfying the following chemical formula 1:
- R 1 to R 3 are each independently a C 1 to C 12 straight-chain, branched, or cyclic divalent aliphatic hydrocarbon group; or a C 6 to C 12 divalent aromatic hydrocarbon group,
- n is an integer from 4 to 6
- p is an integer from 10 to 30
- t is an integer from 1 to 30
- s is an integer from 1 to 40
- y is the weight occupied by the repeating unit (b) represented by the chemical formula 2 in the thermoplastic polyester elastomer resin
- z is the weight occupied by the repeating unit (c) represented by the chemical formula 3 in the thermoplastic polyester elastomer resin.
- the present invention provides a method for producing a thermoplastic polyester elastomer resin, comprising: (1-1) a step of reacting a glycol component; a dicarboxylic acid component; and a high molecular weight glycol component to obtain a reactant; and (1-2) a step of subjecting the reactant to a condensation polymerization reaction, wherein the thermoplastic polyester elastomer resin comprises a repeating unit (a) represented by the chemical formula 1; a repeating unit (b) represented by the chemical formula 2; and a repeating unit (c) represented by the chemical formula 3, and satisfies the chemical formula 1.
- the present invention provides a composition comprising the thermoplastic polyester elastomer resin.
- the present invention provides an article comprising the thermoplastic polyester elastomer resin.
- thermoplastic polyester elastomer resin according to the present invention can exhibit excellent mechanical strength by applying polytetramethylene ether glycol (PTMG) to the production of a soft block.
- thermoplastic polyester elastomer resin according to the present invention can exhibit excellent elasticity and compressive elasticity recovery by applying ethylene oxide-added polypropylene glycol (EO-PPG), which has a methylene side branch in the polyol chain main chain to restrict the movement of polymer chains of the soft block and generate sufficient free volume between polymer chains to lower crystallinity and crystallization speed and increase incompatibility with the hard block to promote phase separation from the hard block.
- EO-PPG ethylene oxide-added polypropylene glycol
- thermoplastic polyester elastomer resin according to the present invention exhibits excellent mechanical strength, elasticity and compressive elastic recovery while exhibiting a desired level of hardness, and thus can be utilized in the manufacture of various articles such as automobile parts, electrical and electronic parts, fibers, films, matrices, cushioning materials, foams, and shoe parts.
- the present invention is not limited to the contents described below, and may be modified in various forms as long as the gist of the invention is not changed.
- Thermoplastic polyester elastomer (TPEE) resin forms an elastomer matrix by phase separation due to the incompatibility of crystalline hard blocks and amorphous soft blocks, thereby exhibiting elastic properties like rubber.
- TPEE Thermoplastic polyester elastomer
- it is required to clearly control the boundary distinction between the hard blocks and the soft blocks. Specifically, by increasing the difference in crystallinity/amorphism of the hard blocks and the soft blocks to improve the incompatibility while increasing the free volume of the polymer chains, the phase separation can be made to occur more clearly. That is, the hard block needs to crystallize as quickly as possible, and the soft block needs to crystallize as late as possible, whereby a thermoplastic polyester elastomer resin having high mechanical strength and excellent elastic properties can be obtained.
- the present invention has the characteristics of applying polytetramethylene ether glycol (PTMG) when forming a soft block of a thermoplastic polyester elastomer resin to lower the crystallinity and crystallization speed of the soft block, and applying ethylene oxide-added polypropylene glycol (EO-PPG) to increase incompatibility with the hard block so that phase separation appears distinct, which will be specifically described as follows.
- PTMG polytetramethylene ether glycol
- EO-PPG ethylene oxide-added polypropylene glycol
- thermoplastic polyester elastomer resin according to the present invention comprises a repeating unit (a) represented by the following chemical formula 1; a repeating unit (b) represented by the following chemical formula 2; and a repeating unit (c) represented by the following chemical formula 3.
- R 1 to R 3 are the same or different from each other, and each independently represents a C 1 to C 12 straight-chain, branched, or cyclic divalent aliphatic hydrocarbon group; or a C 6 to C 12 divalent aromatic hydrocarbon group,
- n is an integer from 4 to 6
- p is an integer from 10 to 30
- t is an integer from 1 to 30, and
- s is an integer from 1 to 40.
- the repeating unit (a) represented by the above chemical formula 1 may be a repeating unit constituting a hard block of the thermoplastic polyester elastomer resin.
- R 1 is specifically a C 5 to C 12 cyclic divalent aliphatic hydrocarbon group, or a C 6 to C 12 divalent aromatic hydrocarbon group, and m may be an integer of 3 to 5.
- the R 1 may be a cyclohexylene group or a phenylene group, and m may be an integer of 4.
- the repeating unit (b) represented by the above chemical formula 2 and the repeating unit (c) represented by the above chemical formula 3 may be repeating unit(s) constituting the soft block of the thermoplastic polyester elastomer resin.
- R 2 may specifically be a C 5 to C 12 cyclic divalent aliphatic hydrocarbon group, or a C 6 to C 12 divalent aromatic hydrocarbon group.
- n may be an integer of 4 or 5
- p may be an integer of 15 to 25.
- R 2 may be a cyclohexylene group or a phenylene group
- n may be an integer of 4
- p may be an integer of 18 to 22.
- R 3 may specifically be a C 5 to C 12 cyclic divalent aliphatic hydrocarbon group, or a C 6 to C 12 divalent aromatic hydrocarbon group.
- t may be an integer from 5 to 25, and s may be an integer from 5 to 35.
- R 3 may be a cyclohexylene group or a phenylene group, t may be an integer from 10 to 20, and s may be an integer from 10 to 30.
- thermoplastic polyester elastomer resin according to the present invention may include a repeating unit represented by the following chemical formula 4 and/or a repeating unit represented by the following chemical formula 5, in which the repeating unit (a) represented by the above chemical formula 1, the repeating unit (b) represented by the above chemical formula 2, and the repeating unit (c) represented by the above chemical formula 3 are bonded to each other.
- R 1 , R 2 , R 3 , m, n, p, t and s are the same as described above, and x, y and z are weight ratios.
- the repeating unit (a) represented by the chemical formula 1 can be derived from the reaction of a glycol component including 1,4-butanediol; and a dicarboxylic acid component
- the repeating unit (b) represented by the chemical formula 2 can be derived from the reaction of a dicarboxylic acid component
- the repeating unit (c) represented by the chemical formula 3 can be derived from the reaction of a dicarboxylic acid component
- a high molecular weight glycol component second high molecular weight glycol component
- ethylene oxide added polypropylene glycol ethylene oxide added polypropylene glycol
- thermoplastic polyester elastomer resin according to the present invention may be a resin obtained by using a dicarboxylic acid component, a glycol component, and a high molecular weight glycol component (a first high molecular weight glycol component and a second high molecular weight glycol component) as reaction raw materials.
- the above dicarboxylic acid component (e.g., a dicarboxylic acid, an ester thereof, a chloride thereof, or an anhydride thereof) may be an aliphatic dicarboxylic acid component, an aromatic dicarboxylic acid component, or a combination thereof.
- the aliphatic dicarboxylic acid component may be a linear, branched, or cyclic aliphatic dicarboxylic acid component.
- the aliphatic dicarboxylic acid component may have 4 or more, 5 or more, 6 or more, or 7 or more carbon atoms, and may have 20 or less, 15 or less, 13 or less, 12 or less, or 10 or less.
- the aliphatic dicarboxylic acid component may have 4 to 20, 5 to 15, or 6 to 10 carbon atoms.
- the aliphatic dicarboxylic acid component may include, but is not limited to, at least one selected from the group consisting of adipic acid, sebacic acid, succinic acid, isodecylsuccinic acid, maleic acid, fumaric acid, glutaric acid, azelaic acid, 1,4-cyclohexanedicarboxylic acid, and 1,3-cyclohexanedicarboxylic acid.
- the number of carbon atoms of the aromatic dicarboxylic acid component may be 6 or more, 7 or more, 8 or more, or 10 or more, and 25 or less, 20 or less, or 15 or less. Specifically, the number of carbon atoms of the aromatic dicarboxylic acid component may be 6 to 25, 6 to 15, or 6 to 10.
- the aromatic dicarboxylic acid component may include, but is not limited to, at least one selected from the group consisting of terephthalic acid, isophthalic acid, naphthalenedicarboxylic acid, diphenyldicarboxylic acid, 4,4'-stilbenedicarboxylic acid, 2,5-furandicarboxylic acid, 2,5-thiophenedicarboxylic acid, and dimethyl terephthalate.
- the dicarboxylic acid component may include at least one selected from the group consisting of terephthalic acid and dimethyl terephthalate.
- the amount (input amount during reaction) of at least one (at least one component) selected from the group consisting of terephthalic acid and dimethyl terephthalate is not particularly limited, but may be 50 mol% or more, 65 mol% or more, 70 mol% or more, 85 mol% or more, 90 mol% or more, or 95 mol% or more, based on the total mol% of the dicarboxylic acid component.
- the amount of the terephthalic acid, the dimethyl terephthalate, or a combination thereof may be 50 to 100 mol%, 55 to 100 mol%, 60 to 100 mol%, 70 to 100 mol%, 85 to 100 mol%, or 90 to 95 mol%.
- the glycol component may be a component that forms a tetramethylene ester hard block (e.g., repeating unit (a) of chemical formula 1) through an esterification reaction or an ester exchange reaction with the dicarboxylic acid component.
- the glycol component may have 2 or more, 3 or more, or 4 or more carbon atoms, and may be 15 or less, 12 or less, 10 or less, or 8 or less. Specifically, the glycol component may have 2 to 15, 3 to 10, or 4 to 8 carbon atoms.
- the glycol component may be ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,4-cyclohexanedimethanol, 2-methyl-1,3-propanediol, 2-methylene-1,3-propanediol, 2-ethyl-1,3-propanediol, 2-isopropyl-1,3-propanediol, 2,2-dimethyl-1,3-propanediol, 2,3-butanediol, 3-methyl-1,5-pentanediol, 3-methyl-2,4-pentanediol, 1,6-hexanediol, 1,2-cyclohexanediol, 1,4-cyclohexanediol, diethylene glycol, polyethylene glycol, polypropylene glycol, polytetramethylene glycol, polyhexamethylene glycol, a copolymer of ethylene oxide and
- the glycol component may include 1,4-butanediol.
- the amount of 1,4-butanediol used is not particularly limited, but may be 75 mol% or more, 80 mol% or more, 83 mol% or more, 85 mol% or more, 90 mol% or more, or 95 mol% or more, based on the total mol% of the glycol component.
- the amount of 1,4-butanediol used may be 75 to 100 mol%, 80 to 100 mol%, 83 to 100 mol%, 85 to 100 mol%, 90 to 100 mol%, or 90 to 95 mol%.
- the number average molecular weight of these glycol components is not particularly limited, but may be less than 400 g/mol, less than 350 g/mol, less than 300 g/mol, or less than 250 g/mol.
- the high molecular weight glycol component may be a component that forms a poly(alkylene oxide) ester soft block (e.g., repeating unit (b) of chemical formula 2 and repeating unit (c) of chemical formula 3) through an esterification reaction or an ester exchange reaction with the dicarboxylic acid component.
- the high molecular weight glycol component may include polytetramethylene ether glycol (PTMG) and ethylene oxide addition polypropylene glycol (EO-PPG). Since the high molecular weight glycol component includes the polytetramethylene ether glycol (PTMG), the mechanical strength of the thermoplastic polyester elastomer resin can be significantly increased. In addition, since the high molecular weight glycol component includes the ethylene oxide addition polypropylene glycol (EO-PPG), the elasticity and compression-elastic recovery force of the thermoplastic polyester elastomer resin can be significantly increased.
- the high molecular weight glycol component can be composed of polytetramethylene ether glycol (PTMG) and ethylene oxide addition polypropylene glycol (EO-PPG).
- the amount of polytetramethylene ether glycol (PTMG) used is not particularly limited, but may be 50 mol% or more, 60 mol% or more, 75 mol% or more, 85 mol% or more, 95 mol% or more, or 97 mol% or more, based on the total mol% of the high molecular weight glycol component (a component comprising the first high molecular weight glycol component and the second high molecular weight glycol component).
- the amount of polytetramethylene ether glycol (PTMG) used may be 50 to 99.5 mol%, 60 to 99 mol%, 65 to 95 mol%, 70 to 90 mol%, 75 to 90 mol%, or 75 to 85 mol%.
- the amount of the ethylene oxide-added polypropylene glycol (EO-PPG) used is not particularly limited, but may be 50 mol% or less, 40 mol% or less, 25 mol% or less, 15 mol% or less, 5 mol% or less, or 3 mol% or less, based on the total mol% of the high molecular weight glycol component (the sum of the first high molecular weight glycol component and the second high molecular weight glycol component).
- the amount of the ethylene oxide-added polypropylene glycol (EO-PPG) used may be 0.5 to 50 mol%, 1 to 40 mol%, 5 to 35 mol%, 10 to 30 mol%, 15 to 30 mol%, or 15 to 25 mol%.
- the number average molecular weight of the high molecular weight glycol component including the above polytetramethylene ether glycol (PTMG) and the above ethylene oxide-added polypropylene glycol (EO-PPG) is not particularly limited, but may be 400 g/mol or more, 500 g/mol or more, 600 g/mol or more, 700 g/mol or more, or 800 g/mol or more, and may be 6,000 g/mol or less, 5,000 g/mol or less, 4,000 g/mol or less, or 3,000 g/mol or less. Specifically, in order to ensure good phase separation with the hard block, the number average molecular weight of the high molecular weight glycol component may be 400 to 5,000 g/mol, or 1,000 to 3,000 g/mol.
- the number average molecular weight of the polytetramethylene ether glycol can be 500 to 4,000 g/mol, 600 to 4,000 g/mol, 800 to 3,500 g/mol, or 1,000 to 3,000 g/mol.
- the number average molecular weight of the ethylene oxide-added polypropylene glycol (EO-PPG) can be 1,000 to 4,000 g/mol, 1,500 to 3,500 g/mol, 2,000 to 3,500 g/mol, or 2,000 to 3,000 g/mol.
- the content (x) of the repeating unit (a) represented by the chemical formula 1 is not particularly limited, but may be 20 to 70 wt%, 22 to 68 wt%, 24 to 65 wt%, 26 to 63 wt%, or 27 to 60 wt% based on the total weight of the thermoplastic polyester elastomer resin.
- a thermoplastic polyester elastomer resin in which mechanical strength (e.g., tensile strength) and hardness are secured at a desired level can be provided.
- the content (y) of the repeating unit (b) represented by the chemical formula 2 is not particularly limited, but may be 10 to 75 wt%, 11 to 70 wt%, 12 to 65 wt%, 13 to 62 wt%, or 14 to 60 wt% based on the total weight of the thermoplastic polyester elastomer resin.
- a thermoplastic polyester elastomer resin having excellent mechanical strength and elongation, and elasticity and compression-elastic recovery force secured at a target level can be provided.
- the content (z) of the repeating unit (c) represented by the chemical formula 3 is not particularly limited, but may be 0.5 to 40 wt%, 0.8 to 38 wt%, 1 to 35 wt%, 1.2 to 32 wt%, or 1.5 to 30 wt% based on the total weight of the thermoplastic polyester elastomer resin.
- a thermoplastic polyester elastomer resin having excellent elasticity and compressive-elastic recovery force while securing mechanical strength and elongation at the target level can be provided.
- thermoplastic polyester elastomer resin according to the present invention may be a resin comprising the repeating unit (a), the repeating unit (b), and the repeating unit (c), wherein the content ratio (weight ratio) between these repeating units is controlled within a specific range.
- thermoplastic polyester elastomer resin according to the present invention can satisfy the following Equation 1.
- the thermoplastic polyester elastomer resin satisfies the following Equation 1, it can have a desired high molecular weight and higher mechanical strength.
- y is the weight of the repeating unit (b) represented by the chemical formula 2 in the thermoplastic polyester elastomer resin (total weight of the thermoplastic polyester elastomer resin),
- z is the weight occupied by the repeating unit (c) represented by the chemical formula 3 in the thermoplastic polyester elastomer resin (total weight of the thermoplastic polyester elastomer resin).
- the ratio of y/z in the above formula 1 can be 0.35 to 33, 0.4 to 32.5, 0.5 to 28, 0.8 to 25, 1 to 20, 1.2 to 15, 2 to 13, or 3 to 7.
- thermoplastic polyester elastomer resin according to the present invention can satisfy the following Equation 2.
- the thermoplastic polyester elastomer resin satisfies the following Equation 2, the elasticity and compression-elastic recovery force can be more excellent.
- x is the weight of the repeating unit (a) represented by the chemical formula 1 in the thermoplastic polyester elastomer resin (total weight of the thermoplastic polyester elastomer resin),
- y is the weight of the repeating unit (b) represented by the chemical formula 2 in the thermoplastic polyester elastomer resin (total weight of the thermoplastic polyester elastomer resin),
- z is the weight occupied by the repeating unit (c) represented by the chemical formula 3 in the thermoplastic polyester elastomer resin (total weight of the thermoplastic polyester elastomer resin).
- the ratio of (y + z) / x in the above formula 2 can be 0.55 to 2.95, 0.6 to 2.90, 0.65 to 2.88, 0.7 to 2.85, 0.75 to 2.75, 0.8 to 2.65, 1 to 2.55, or 1.15 to 2.45.
- thermoplastic polyester elastomer resin according to the present invention may further include a repeating unit (d) derived from a reactive compatibilizer.
- the thermoplastic polyester elastomer resin further includes the repeating unit (d), the mechanical strength, elongation, etc., as well as the elasticity and compression-elastic recovery force may be further improved.
- the above reactive compatibilizer is an additive that helps improve miscibility by preventing phase separation between each raw material component in a raw material mixture (resin mixture) of two or more types and enabling the formation of a stable and long-term continuous phase.
- the reactive compatibilizer is a reactive polymer that is compatibilizable with one of the raw material components among the mixed raw material components and reacts with a functional group of the other raw material component, and when this is added to the raw material mixture and a reactive extrusion process is performed, the formation of a block copolymer or a graft copolymer can be induced.
- the isocyanate compound may have too high a reactivity with moisture, making it difficult to control the reactivity and handle (storage), and the carbodiimide compound may be expensive, making it difficult to economically produce.
- the epoxy compound has a large difference in the degree of reactivity depending on the epoxy equivalent and the number of functional groups, making it difficult to control the reactivity, and the oxazoline compound has low reactivity compared to other compounds, making it difficult to expect an effect of improving the miscibility between raw material components. Therefore, it may be preferable to use a compound having the glycidyl group or the maleic anhydride structure as the reactive compatibilizer.
- the compound having the glycidyl group may specifically be a glycidyl group-modified olefin rubber polymer, and preferably may be a polymer in which glycidyl (meth)acrylate is grafted onto a polyolefin rubber copolymer (Glycidyl methacrylate grafted polyolefin elastomers).
- the compound having the maleic anhydride structure may specifically be a polymer in which maleic anhydride is grafted onto a polyolefin rubber copolymer (Maleic anhydride grafted polyolefin elastomers).
- the reactive compatibilizer may be poly(ethylene-co-methylacrylate-co-glycidyl methacrylate), whereby the repeating unit (d) may have a structure represented by the following chemical formula 6.
- the reactive compatibilizer may be poly(ethylene-co-ethylacrylate-co-maleic anhydride), whereby the repeating unit (d) may be represented by the following chemical formula 7.
- a is an integer from 116 to 268, b is an integer from 12 to 29, and c is an integer from 2 to 7.
- d is an integer from 129 to 300
- e is an integer from 8 to 25
- f is an integer from 1 to 3.
- the content of the repeating unit (d) derived from the reactive compatibilizer is not particularly limited, but may be 0.1 to 10 wt%, 0.5 to 10 wt%, 1 to 5 wt%, or 2 to 4 wt% based on the total weight of the thermoplastic polyester elastomer resin.
- the content of the repeating unit (d) is within the above range, a melt viscosity of a desired level can be secured, thereby improving the moldability (processability) of the thermoplastic polyester elastomer resin.
- thermoplastic polyester elastomer resin according to the present invention can exhibit improved properties by controlling the amount of each reaction raw material used while applying the high molecular weight glycol component (PTMG, EO-PPG) for soft block formation as described above.
- PTMG high molecular weight glycol component
- the thermoplastic polyester elastomer resin according to the present invention may have a tensile strength measured according to ASTM D638 of 190 kgf/cm 2 or more, 195 kgf/cm 2 or more, 200 kgf/cm 2 or more, 205 kgf/cm 2 or more, 220 kgf/cm 2 or more, 230 kgf/cm 2 or more, 240 kgf/cm 2 or more, or 250 kgf/cm 2 or more. More specifically, the tensile strength may be 190 to 350 kgf/cm 2 , 195 to 335 kgf/cm 2 , 200 to 325 kgf/cm 2 , or 210 to 320 kgf/cm 2 .
- thermoplastic polyester elastomer resin according to the present invention may have an intrinsic viscosity (IV) of 1.0 to 2.4 dl/g, specifically 1.05 to 2.3 dl/g, 1.1 to 2.2 dl/g, 1.2 to 2 dl/g, 1.3 to 1.9 dl/g, 1.35 to 1.88 dl/g, or 1.4 to 1.85 dl/g.
- IV intrinsic viscosity
- thermoplastic polyester elastomer resin according to the present invention may have a Shore D hardness of 20 to 60, specifically 25 to 55, 28 to 53, 28 to 50, 30 to 48, or 30 to 45.
- thermoplastic polyester elastomer resin according to the present invention may have a compression set (compression-elastic recovery) of 30 to 60 %, 30 to 59 %, 31 to 58 %, 31 to 57 %, 32 to 56 %, 32 to 55 %, 33 to 53 %, 33 to 50 %, 34 to 49 %, or 34 to 48 %.
- compression set compression-elastic recovery
- thermoplastic polyester elastomer resin according to the present invention may have a resilience of 50 to 80 %, 51 to 79 %, 52 to 78 %, 54 to 76 %, 55 to 75 %, 56 to 74 %, 58 to 73 %, or 60 to 70 %.
- thermoplastic polyester elastomer resin according to the present invention can have excellent mechanical strength, elasticity, and compression-elastic recovery by satisfying the following formula 3 and/or formula 4.
- H is the Shore D hardness of the thermoplastic polyester elastomer resin as measured according to ASTM D2240,
- R is the resilience of the thermoplastic polyester elastomer resin as measured according to ASTM D2632,
- CS is the compression set of thermoplastic polyester elastomer resins measured according to ISO 816 Method B.
- the H/R ratio can be 0.3 to 0.75, 0.32 to 0.73, 0.34 to 0.7, 0.35 to 0.68, 0.38 to 0.65, 0.4 to 0.63, or 0.4 to 0.6.
- the H/CS ratio can be from 0.8 to 0.95, from 0.8 to 0.93, from 0.81 to 0.92, from 0.82 to 0.91, from 0.83 to 0.9, from 0.84 to 0.89, or from 0.85 to 0.88.
- thermoplastic polyester elastomer resin according to the present invention can be utilized in the manufacture of various products because it has excellent mechanical strength, elasticity, and compressive elastic recovery while securing basic physical properties (e.g., heat resistance, impact resistance, moldability, etc.).
- the thermoplastic polyester elastomer resin can be useful in the manufacture of fibers, films, foams (molded products in the form of foam), shoe parts (e.g., cushioning materials for shoe midsoles, shoe outsoles, and shoe insoles), etc.
- thermoplastic polyester elastomer resin according to the present invention can be manufactured through a process of conducting a polycondensation reaction after an esterification reaction or an ester exchange reaction.
- the method for manufacturing the thermoplastic polyester elastomer resin according to the present invention includes (1-1) a step of reacting a glycol component; a dicarboxylic acid component; and a high molecular weight glycol component to obtain a reactant; and (1-2) a step of subjecting the reactant to a polycondensation reaction, which will be specifically described as follows.
- Step (1-1) Esterification reaction, or transesterification reaction
- step (1-1) is a step of introducing a glycol component, a dicarboxylic acid component, and a high molecular weight glycol component, which are reaction raw materials, into a reactor (esterification reactor or ester exchange reactor) and performing an esterification reaction or an ester exchange reaction to obtain a reactant.
- the glycol component includes 1,4-butanediol
- the high molecular weight glycol component includes polytetramethylene ether glycol (PTMG) and ethylene oxide added polypropylene glycol (EO-PPG). Since the description of these components is the same as described above, it will be omitted. In addition, since the description of the dicarboxylic acid component is the same as described above, it will be omitted.
- the glycol component, the dicarboxylic acid component, and the high molecular weight glycol component may be fed all at once, or the glycol component and the dicarboxylic acid component may be fed and the temperature of the reactor may be increased to a certain level, and then the high molecular weight glycol may be fed.
- the feeding of the high molecular weight glycol may be performed at a temperature of 180 to 280° C. under a nitrogen atmosphere while removing by-products such as water or methanol.
- the above esterification reaction or ester exchange reaction can be performed in the presence of a catalyst. That is, when the above reaction raw material is introduced into the reactor, a catalyst can be introduced together.
- the catalyst is not particularly limited as long as it is a commonly known catalyst, and specifically, at least one selected from the group consisting of a titanium catalyst, a germanium catalyst, an antimony catalyst, an aluminum catalyst, and a tin catalyst can be used.
- the titanium-based catalyst may specifically include at least one selected from the group consisting of tetraethyl titanate, acetyltripropyl titanate, tetrapropyl titanate, tetrabutyl titanate, 2-ethylhexyl titanate, octylene glycol titanate, triethanolamine titanate, acetylacetonate titanate, ethylacetoacetic ester titanate, isostearyl titanate, and titanium dioxide.
- the germanium-based catalyst may specifically include at least one selected from the group consisting of germanium dioxide, germanium tetrachloride, germanium ethyleneglycoxide, and germanium acetate.
- the amount of the catalyst used can be appropriately adjusted depending on the reaction conditions and the type of catalyst.
- the catalyst can be introduced so that the weight of the metal component (e.g., Ti, Ge, Sb, Al, Sn, etc.) contained in the catalyst is 0.0001 to 0.005 weight part based on the total weight of the glycol component, the dicarboxylic acid component, and the high molecular weight glycol component introduced into the reactor.
- the metal component e.g., Ti, Ge, Sb, Al, Sn, etc.
- one or more additives selected from the group consisting of a crystallizer, an antioxidant, and a polymerization reaction branching agent may be further added.
- crystallizing agent a crystal nucleating agent, an ultraviolet absorber, a polyolefin resin, or a polyamide resin can be used.
- At least one selected from the group consisting of hindered phenol compounds, phosphite compounds, and thioether compounds can be used.
- a polyol having 3 to 6 hydroxyl groups; a polycarboxylic acid having 3 to 4 carboxyl groups, or an anhydride thereof; or a hydroxy acid having a total of 3 to 6 hydroxyl groups and carboxyl groups can be used.
- the polyol can include at least one selected from the group consisting of glycerol, sorbitol, pentaerythritol, 1,1,4,4-tetrakis(hydroxymethyl)cyclohexane, trimethylol propane, and 1,2,6-hexane triol.
- the polycarboxylic acid may include at least one selected from the group consisting of hemimellitic acid, trimellitic acid, trimesspiromellitic acid, 1,1,2,2-ethanetetracarboxylic acid, 1,1,2-ethanetricarboxylic acid, 1,3,5-pentanetricarboxylic acid, and 1,2,3,4-cyclopentanetetracarboxylic acid.
- trimellitic acid, trimellitic anhydride, trimethylol propane, or a combination thereof may be used as the polymerization reaction branching agent to control the melt index (MI) of the thermoplastic polyester elastomer resin to a desired level.
- the amount of this polymerization reaction branching agent to be used (the amount added during the reaction) is not particularly limited, but a concentration of 0.00015 to 0.005 equivalents per 100 g of thermoplastic polyester elastomer resin can be applied.
- esterification reaction or ester exchange reaction
- an inert solvent such as water or a diol may be added to facilitate the removal of volatile components.
- the conditions of the above esterification reaction or ester exchange reaction can be appropriately controlled according to the reaction environment and the molecular weight of the desired reactant.
- the pressure applied to the above esterification reaction or ester exchange reaction may be 0.01 kg/cm2 or more, 0.05 kg/cm2 or more, or 0.1 kg/cm2 or more, and may be 1.5 kg/cm2 or less, 1 kg/cm2 or less, 0.5 kg/cm2 or less, or 0.3 kg/cm2 or less.
- the temperature applied to the above esterification reaction or ester exchange reaction may be 140 °C or more, 160 °C or more, 180 °C or more, or 200 °C or more, and may be 300 °C or less, 280 °C or less, 270 °C or less, 250 °C or less, or 220 °C or less.
- the esterification reaction or ester exchange reaction can be performed under a nitrogen atmosphere.
- the esterification reaction or ester exchange reaction can be performed under conditions of 0.05 to 1.5 kg/cm2 and 180 to 280°C under a nitrogen atmosphere.
- the above esterification reaction or ester exchange reaction can be performed batchwise or continuously.
- the end point of the above esterification reaction or ester exchange reaction can be determined by considering the theoretical amount of water or methanol, which are by-products generated from the dicarboxylic acid component, or when the outflow of by-products no longer occurs.
- step (1-2) is a step of subjecting the reactant obtained in step (1-1) to a polycondensation reaction.
- the conditions under which the polycondensation reaction is performed may not be particularly limited.
- the polycondensation reaction can be performed under a vacuum atmosphere.
- the pressure applied to the polycondensation reaction can be 0.01 to 600 mmHg, 0.05 to 200 mmHg, 0.1 to 100 mmHg, 0.5 to 50 mmHg, or 1 to 10 mmHg.
- the temperature applied to the polycondensation reaction can be 150 to 300°C, 200 to 290°C, 220 to 280°C, or 230 to 260°C.
- the polycondensation reaction can be performed under reduced pressure conditions of 0.1 to 10 mmHg and 200 to 260°C for 1 to 24 hours in a vacuum atmosphere.
- thermoplastic polyester elastomer resin including repeating units ((a), (b), (c)) represented by the chemical formulas 1 to 3 described above can be manufactured in high yield.
- thermoplastic polyester elastomer resin according to the present invention can be manufactured by a process of manufacturing a first thermoplastic polyester elastomer resin and a second thermoplastic polyester elastomer resin as reaction raw materials through a process of carrying out a polycondensation reaction after an esterification reaction or an ester exchange reaction, and then melt-kneading them.
- the method for manufacturing the thermoplastic polyester elastomer resin according to the present invention comprises the steps of: (2-1) reacting a first glycol component comprising 1,4-butanediol; a first dicarboxylic acid component; and a first high molecular weight glycol component comprising polytetramethylene ether glycol to obtain a first reactant; (2-2) reacting a second glycol component comprising 1,4-butanediol; a second dicarboxylic acid component; and a second high molecular weight glycol component comprising ethylene oxide added polypropylene glycol to obtain a second reactant; and (2-3) reacting the first reactant;
- the step of melt-mixing the second reactant and the reactive compatibilizer is included, which is specifically described as follows.
- step (2-1) is a step of introducing a first glycol component, a first dicarboxylic acid component, and a first high molecular weight glycol component as reaction raw materials into a reactor (esterification reactor or ester exchange reactor), performing an esterification reaction or an ester exchange reaction to obtain a reactant (intermediate reactant), and subjecting the reactant to a condensation polymerization reaction to obtain a first reactant (first thermoplastic polyester elastomer resin).
- the first high molecular weight glycol component may include polytetramethylene ether glycol (PTMG), and specifically, may be composed of polytetramethylene ether glycol (PTMG) alone.
- PTMG polytetramethylene ether glycol
- esterification reaction or ester exchange reaction and polycondensation reaction for producing the first reactant is omitted as it is the same as described above.
- step (2-2) is a step of introducing a second glycol component, a second dicarboxylic acid component, and a second high molecular weight glycol component as reaction raw materials into a reactor (esterification reactor or ester exchange reactor), performing an esterification reaction or an ester exchange reaction to obtain a reactant (intermediate reactant), and subjecting this to a condensation polymerization reaction to obtain a second reactant (second thermoplastic polyester elastomer resin).
- the second high molecular weight glycol component may include ethylene oxide-added polypropylene glycol (EO-PPG), and specifically, may be composed of ethylene oxide-added polypropylene glycol (EO-PPG) alone.
- EO-PPG ethylene oxide-added polypropylene glycol
- esterification reaction or ester exchange reaction and polycondensation reaction for producing the second reactant is omitted as it is the same as described above.
- Step (2-3) Melt mixing
- step (2-3) is a step of melt-mixing the first reactant obtained in step (2-1) and the second reactant obtained in step (2-2).
- a reactive compatibilizer capable of maximizing the dispersibility of the first reactant and the second reactant while allowing chemical cross-linking is introduced, thereby securing basic physical properties while producing a thermoplastic polyester elastomer resin having excellent mechanical strength, elasticity, and compression-elastic recovery force.
- the first reactant and the second reactant are dispersed and combined in a state where micro-phase separation of the soft block having the repeating unit (repeating unit (c) of chemical formula 3) derived from ethylene oxide-added polypropylene glycol (EO-PPG) having an energy repulsion elastic effect and the soft block having the repeating unit (repeating unit (b) of chemical formula 2) derived from polytetramethylene ether glycol (PTMG) that determines mechanical strength does not occur, thereby producing a thermoplastic polyester elastomer resin having excellent elasticity and compression-elastic recovery force.
- the description of the above-described reactive compatibilizer is the same as that described above and therefore is omitted.
- melt mixing can be performed under heating and/or pressurization conditions using a single-screw extruder, a twin-screw extruder, a mixing roll, a Banbury mixer, a batch mixer, a molding machine, etc.
- the first reactant and the second reactant may go through a preliminary mixing process.
- the preliminary mixing process may be performed by putting the first reactant and the second reactant into various mixers such as a V-type blender, a ribbon blender, a Henschel mixer, a rocking mixer, a tubular mixer, a planetary mixer, a Banbury mixer, a mill blender, a mixing roll, and a tumbler to pre-mix in a solid state.
- the mixing time in the solid state may vary depending on the type of mixer, but the mixing time may be adjusted so that the standard deviation is within 1% and at most 2% compared to the target mixing ratio when five locations are randomly sampled after mixing.
- first reactant and the second reactant may be directly added to a single-screw extruder, a twin-screw extruder, a mixing roll, a Banbury mixer, a batch mixer, a molding machine, etc. for melt mixing without going through the preliminary mixing process.
- a thermoplastic polyester elastomer resin may be manufactured by mixing some of the raw material components in advance and then melt mixing the obtained reactant to prepare a masterbatch, mixing the remaining raw material components into the masterbatch, and then melt mixing again.
- the mixing ratio of the first reactant and the second reactant during the melt mixing is not particularly limited, but considering the desired properties of the thermoplastic polyester elastomer resin, the weight ratio may be 40:60 to 99:1, 45:55 to 99:1, 50:50 to 98:2, 55:45 to 98:2, 60:40 to 95:5, 60:40 to 90:10, 65:35 to 90:10, 70:30 to 85:15, or 75:25 to 85:15.
- the melt mixing can be performed in the single-screw extruder or the twin-screw extruder.
- the temperature at which the melt mixing is performed through the extruder(s) e.g., the barrel temperature of the extruder
- the melt mixing can be performed at a temperature that is 20 to 30 °C higher than the melting temperature (T m ) of the target thermoplastic polyester elastomer resin.
- the temperature at which the melt mixing is performed can be 170 to 230 °C, 180 to 225 °C, 190 to 220 °C, 195 to 215 °C, or 200 to 210 °C.
- the extrusion speed (screw rotation speed) of the extruder(s) is not particularly limited, and may be specifically 150 to 230 rpm, 160 to 225 rpm, 170 to 220 rpm, 180 to 210 rpm, 190 to 205 rpm, or 195 to 200 rpm. Since melt mixing is performed under these conditions, sufficient melt mixing and reactive extrusion can be achieved while having an appropriate throughput per unit time. If the above conditions are exceeded, the thermoplastic polyester elastomer resin may be thermally decomposed, or the melting characteristics may be poor, thereby deteriorating the melt mixing and reactive extrusion characteristics of the compatibilizer.
- the hydroxyl group (-OH) or carboxyl group (-COOH) present in each of the first reactant and the second reactant can react with the glycidyl group or maleic anhydride structure of the reactive compatibilizer to form an ether bond or an ester bond.
- thermoplastic polyester elastomer resin including the repeating unit (d) described above together with the repeating units ((a), (b), (c)) represented by the chemical formulas 1 to 3 described above can be manufactured in a high yield.
- the composition according to the present invention comprises the thermoplastic polyester elastomer resin described above.
- the composition according to the present invention can be used for the production of various products because it comprises a thermoplastic polyester elastomer resin having excellent mechanical strength, elasticity, and compression-elastic recovery.
- composition according to the present invention may further contain conventionally known solvents and additives as needed.
- the article according to the present invention comprises the thermoplastic polyester elastomer resin described above.
- the article according to the present invention is not particularly limited, but may be a fiber, a foam (a molded article in the form of foam), or a shoe part.
- the fibers may be monocomponent fibers and/or multicomponent fibers (e.g., bicomponent fibers). Such fibers may be used to produce woven, knitted, or nonwoven fabrics.
- the above foam (a molded product in the form of foam) can be manufactured through a process of physically or chemically foaming the thermoplastic polyester elastomer resin described above in a mold or an autoclave.
- the density of the foam is not particularly limited, but may be 0.15 to 0.45 g/cm 3 .
- This foam has high elasticity and energy return properties due to the thermoplastic polyester elastomer resin described above, and can be applied to straps, reporting gears, high-elasticity buffer parts, etc.
- the above shoe part is obtained by injecting the thermoplastic polyester elastomer resin described above into a mold and molding it, and can be specifically a shoe midsole, a shoe outersole, a cushioning material for a shoe insole, etc.
- Step (1-1) Preparation of reactants through ester exchange reaction
- the reactor was evacuated and nitrogen was flowed to reverse the pressure inside the reactor to 1 kg/cm2 to create an inert atmosphere. Thereafter, the input raw materials were stirred and heated under a nitrogen atmosphere, and when the temperature inside the reactor reached about 200°C, the ester exchange reaction was performed while maintaining the temperature at 200°C for 3 hours. At this time, methanol, a by-product, was discharged through the column and condenser during the ester exchange reaction, and the ester exchange reaction was continued until the outflow of methanol stopped.
- the nitrogen inside the pressurized reactor was discharged to the outside to lower the pressure inside the reactor to normal pressure, and the reactant (result) inside the reactor was transferred to a 0.75 m3 polycondensation reactor capable of vacuum reaction.
- the pressure of the polycondensation reactor was lowered from normal pressure to 5 Torr (absolute pressure: 5 mmHg) over 30 minutes, and at the same time, the temperature of the polycondensation reactor was raised to 245°C over 1 hour, and the polycondensation reaction was performed while maintaining the pressure of the polycondensation reactor at 1 Torr (absolute pressure: 1 mmHg) or less.
- the stirring speed was set fast in the early stage of the polycondensation reaction, and as the polycondensation reaction progressed, the glycol component, which is a by-product, was discharged through the column and condenser, and when the stirring force weakened due to the increase in the viscosity of the reactant or the temperature of the reactant rose above the set temperature, the stirring speed was appropriately adjusted. Thereafter, the polycondensation reaction was performed until the intrinsic viscosity (IV) of the reactant (melt) inside the reactor became 1.85 dl/g, and when the intrinsic viscosity (IV) of the reactant reached the desired level, the reactant was discharged outside the reactor to be stranded. Next, a thermoplastic polyester elastomer resin was obtained through a pelletizing process so that 100 cut pellets, which were solidified with a cooling liquid, had an average weight of about 2.5 to 4.0 g.
- thermoplastic polyester elastomer resin was obtained through the same process as Example 1, except that the content (unit: kg) of each input raw material was applied as shown in Table 1 below.
- thermoplastic polyester elastomer resin was obtained through the same process as Example 1, except that the content (unit: kg) of each input raw material was applied as shown in Table 2 below.
- thermoplastic polyester elastomer resins obtained in Examples 1 to 6 and Comparative Examples 1 to 7 were evaluated as follows, and the results are shown in Tables 3 and 4 below.
- Thermoplastic polyester elastomer resin was dissolved in CDCl 3 solvent at a concentration of 3 mg/mL, and 1 H-NMR spectrum was obtained at 25 °C using nuclear magnetic resonance equipment (JEOL, 600 MHz FT-NMR). By analyzing the spectrum, the content (weight %) of BD, PTMG, and EO-PPG based on the total mole number of residues derived from all glycols (BD, PTMG, EO-PPG, etc.) was calculated, and this was used to confirm the contents of the hard block and the soft block.
- JEOL nuclear magnetic resonance equipment
- thermoplastic polyester elastomer resin The hardness of thermoplastic polyester elastomer resin was measured according to ASTM D2240 (Durometer Type D). Specifically, thermoplastic polyester elastomer resin pellets were injection-molded using an injection molding machine (ENGEL, Victory 80) to produce test pieces measuring 100 mm in width, 100 mm in length, and 2 mm in thickness, and the hardness was measured by applying a test piece of 6 mm in thickness, which was made by overlapping three of these.
- ENGEL injection molding machine
- thermoplastic polyester elastomer resin was dissolved in orthochlorophenol (OCP) at a concentration of 0.12% at 150°C to obtain a solution, and the intrinsic viscosity of the thermoplastic polyester elastomer resin was measured using a Ubbelrod-type viscometer in a constant temperature bath at 35°C. Specifically, the temperature of the viscosity tube was maintained at 35°C, and the time taken for the solvent to pass through a specific internal section of the viscosity tube (efflux time) and the time taken for the solution to pass through were measured to obtain the specific viscosity, which was then used to calculate the intrinsic viscosity.
- OCP orthochlorophenol
- melt index was calculated by averaging the amount of discharged material per hour for three times after allowing the thermoplastic polyester elastomer resin to remain at 220°C and a 2.16 kg load for 4 minutes.
- Thermoplastic polyester elastomer resin was dried under reduced pressure at 50°C for 15 h, rapidly melted, and then scanned at a temperature of 10°C/min using a differential scanning calorimeter (DSC, TA Instruments). The highest point of the endothermic peak due to resin melting was then taken as the melting point (T m ).
- thermoplastic polyester elastomer resin The tensile strength of thermoplastic polyester elastomer resin was measured according to ASTM D638. Specifically, thermoplastic polyester elastomer resin pellets were injection-molded using an injection molding machine (ENGEL, Victory 80) to produce test specimens measuring 120 mm in width, 120 mm in length, and 2 mm in thickness, and these were punched to prepare tensile test specimens of ASTM Type I (dumbbell-shaped bar). Next, the tensile strength of the tensile test specimens was measured at a speed of 50 mm/min using a tensile tester (Zwick Roell, Z010).
- ENGEL injection molding machine
- thermoplastic polyester elastomer resin was measured according to ISO 816 Method B. Specifically, thermoplastic polyester elastomer resin pellets were injection-molded with a compression mold (WithLab, WL1700) to produce test pieces having a diameter of 29 mm and a thickness of 12.5 mm, which were then compressed at a compression ratio of 25% at 70°C for 22 hours. After the compressive force was removed, the residual strain was obtained, which was then used to calculate the compression set.
- thermoplastic polyester elastomer resin The resilience of thermoplastic polyester elastomer resin was measured according to ASTM D2632. Specifically, thermoplastic polyester elastomer resin pellets were injection-molded with a compression mold (WithLab, WL1700) to produce test pieces having a diameter of 29 mm and a thickness of 12.5 mm. Next, a 28 g weight was dropped on the test piece, and the rebound height was obtained, which was used to calculate the resilience.
- the resins of Examples 1 to 6 which are thermoplastic polyester elastomer resins according to the present invention, have excellent mechanical strength, elasticity (resilience), and compression set, which is elastic recovery after long-term deformation, because they include soft blocks containing PTMG and EO-PPG derived repeating units (chemical formulae 2 and 3) and hard blocks (chemical formulae 1).
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Abstract
Description
| 투입 원료 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 실시예 5 | 실시예 6 |
| DMT | 37.4 | 29.1 | 41.4 | 37.9 | 52.9 | 34.5 |
| 1,4-BD | 22.2 | 15.8 | 25.4 | 22.4 | 33.5 | 19.9 |
| PTMG | 46.3 | 46.2 | 30.7 | 57.9 | 12.4 | 48.9 |
| PTMG Mn | 2,000 | 2,000 | 2,000 | 2,000 | 1,000 | 2,000 |
| EO-PPG | 13.9 | 23.8 | 24.6 | 1.8 | 29.8 | 14.7 |
| EO-PPG Mn | 2,400 | 2,400 | 2,400 | 2,400 | 2,400 | 2,400 |
| TMA | 0.06 | 0.05 | 0.07 | 0.06 | 0.08 | 0.05 |
| I1098 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| I1019 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| I168 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| TBT | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| DMT: 디메틸 테레프탈레이트 1,4-BD: 1,4-부탄디올 PTMG: 폴리테트라메틸렌 에테르 글리콜 EO-PPG: 에틸렌옥사이드 부가 폴리프로필렌글리콜 TMA: 트리멜리트산 무수물 TBT: 테트라부틸 티타네이트 |
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| 투입 원료 | 비교예 1 | 비교예 2 | 비교예 3 | 비교예 4 | 비교예 5 | 비교예 6 | 비교예 7 |
| DMT | 29.4 | 37.6 | 59.6 | 35.8 | 53.1 | 37.2 | 65.9 |
| 1,4-BD | 15.8 | 22.1 | 36.8 | 21.3 | 34.5 | 22.4 | 44.2 |
| PTMG | 69.7 | 60.0 | 35.5 | - | - | 10.4 | 4.0 |
| PTMG Mn | 2,000 | 2,000 | 1,000 | - | - | 2,000 | 1,000 |
| EO-PPG | - | - | - | 61.7 | 41.3 | 49.7 | 22.3 |
| EO-PPG Mn | - | - | - | 2,400 | 2,400 | 2,400 | 2,400 |
| TMA | 0.05 | 0.06 | 0.11 | - | - | 0.06 | 0.10 |
| TMP | - | - | - | 0.16 | 0.14 | - | - |
| I1098 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| I1019 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| I168 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| TBT | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| DMT: 디메틸 테레프탈레이트 1,4-BD: 1,4-부탄디올 PTMG: 폴리테트라메틸렌 에테르 글리콜 EO-PPG: 에틸렌옥사이드 부가 폴리프로필렌글리콜 PTMG: 폴리테트라메틸렌 에테르 글리콜 TMA: 트리멜리트산 무수물 TMP: 트리메틸올 프로판 TBT: 테트라부틸 티타네이트 |
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| 구분 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 실시예 5 | 실시예 6 |
| 화학식 2의 반복단위(b) 중량%(y) |
49.29 | 49.20 | 32.74 | 61.66 | 14.02 | 52.12 |
| 화학식 3의 반복단위(c) 중량%(z) |
14.64 | 25.05 | 25.92 | 1.88 | 31.40 | 15.48 |
| 화학식 1의 반복단위(a) 중량%(x) |
36.07 | 25.75 | 41.34 | 36.46 | 54.58 | 32.40 |
| y/z (연질 블록의 중량비) |
3.37 | 1.96 | 1.26 | 32.80 | 0.45 | 3.37 |
| (y+z) / x (연질 블록/경질 블록의 중량비) |
1.77 | 2.88 | 1.42 | 1.74 | 0.83 | 2.09 |
| H (shore D) | 39 | 29 | 44 | 40 | 50 | 36 |
| IV (㎗/g) | 1.85 | 1.71 | 1.52 | 1.80 | 1.18 | 1.72 |
| MI (g/10min, 220℃) |
14 | 20 | 10 | 13 | 13 | 15 |
| Tm (℃) | 200 | 196 | 217 | 194 | 215 | 197 |
| 인장 강도 (kgf/cm2) |
250 | 210 | 300 | 260 | 320 | 220 |
| 영구압축 줄음율 (CS, %) |
47 | 35 | 53 | 49 | 57 | 42 |
| 리질리언스 (R, %) |
65 | 73 | 63 | 56 | 67 | 66 |
| H/CS | 0.83 | 0.83 | 0.83 | 0.82 | 0.88 | 0.86 |
| H/R | 0.60 | 0.40 | 0.70 | 0.71 | 0.75 | 0.55 |
| 구분 | 비교예 1 | 비교예 2 | 비교예 3 | 비교예 4 | 비교예 5 | 비교예 6 | 비교예 7 |
| 화학식 2의 반복단위(b) 중량%(y) |
74.30 | 63.97 | 40.14 | - | - | 11.0 | 4.50 |
| 화학식 3의 반복단위(c) 중량%(z) |
- | - | - | 65.02 | 43.49 | 52.40 | 23.50 |
| 화학식 1의 반복단위(a) 중량%(x) |
25.70 | 36.03 | 59.86 | 34.98 | 56.51 | 36.60 | 72.00 |
| y/z (연질 블록의 중량비) |
- | - | - | - | - | 0.21 | 0.19 |
| (y+z) / x (연질 블록/경질 블록의 중량비) |
2.89 | 1.78 | 0.67 | 1.86 | 0.77 | 1.73 | 0.39 |
| H (shore D) | 30 | 40 | 55 | 28 | 47 | 40 | 58 |
| IV (㎗/g) | 1.85 | 1.81 | 1.33 | 1.38 | 1.08 | 1.65 | 1.22 |
| MI (g/10min, 220℃) |
17 | 8 | 12 | 24 | 11 | 25 | 15 |
| Tm (℃) | 174 | 192 | 202 | 194 | 216 | 194 | 214 |
| 인장 강도 (kgf/cm2) |
220 | 260 | 340 | 120 | 180 | 133 | 355 |
| 영구압축줄음율 (CS, %) |
44 | 58 | 60 | 53 | 55 | 56 | 60 |
| 리질리언스 (R, %) |
70 | 54 | 52 | 55 | 50 | 50 | 49 |
| H/CS | 0.68 | 0.69 | 0.92 | 0.53 | 0.85 | 0.73 | 0.78 |
| H/R | 0.43 | 0.74 | 1.06 | 0.51 | 0.94 | 0.80 | 1.18 |
Claims (15)
- 하기 화학식 1로 표시되는 반복단위(a);하기 화학식 2로 표시되는 반복단위(b); 및하기 화학식 3으로 표시되는 반복단위(c)를 포함하고,하기 식 1을 만족하는, 열가소성 폴리에스테르 엘라스토머 수지:[화학식 1][화학식 2][화학식 3][식 1]0.3 ≤ y / z ≤ 35상기 화학식 1 내지 3에서,R1 내지 R3는 각각 독립적으로, C1 내지 C12의 직쇄상, 분지상, 또는 환상의 2가 지방족 탄화수소기; 또는 C6 내지 C12의 2가 방향족 탄화수소기이고,m은 2 내지 6의 정수이고,n은 4 내지 6의 정수이고,p는 10 내지 30의 정수이고,t는 1 내지 30의 정수이고,s는 1 내지 40의 정수이고,상기 식 1에서,y는 열가소성 폴리에스테르 엘라스토머 수지에서 상기 화학식 2로 표시되는 반복단위(b)가 차지하는 중량이며,z는 열가소성 폴리에스테르 엘라스토머 수지에서 상기 화학식 3으로 표시되는 반복단위(c)가 차지하는 중량이다.
- 제 1 항에 있어서,하기 식 2를 만족하는, 열가소성 폴리에스테르 엘라스토머 수지:[식 2]0.5 ≤ (y + z) / x ≤ 3.0상기 식 2에서,x는 열가소성 폴리에스테르 엘라스토머 수지에서 상기 화학식 1로 표시되는 반복단위(a)가 차지하는 중량이고,y는 열가소성 폴리에스테르 엘라스토머 수지에서 상기 화학식 2로 표시되는 반복단위(b)가 차지하는 중량이며,z는 열가소성 폴리에스테르 엘라스토머 수지에서 상기 화학식 3으로 표시되는 반복단위(c)가 차지하는 중량이다.
- 제 1 항에 있어서,ASTM D638에 의거하여 측정한 인장 강도가 190 kgf/cm2 이상인, 열가소성 폴리에스테르 엘라스토머 수지.
- 제 1 항에 있어서,하기 식 3을 만족하는, 열가소성 폴리에스테르 엘라스토머 수지:[식 3]H / R ≤ 0.75상기 식 3에서,H는 ASTM D2240에 의거하여 측정한 열가소성 폴리에스테르 엘라스토머 수지의 쇼어 D 경도이고,R은 ASTM D2632에 의거하여 측정한 열가소성 폴리에스테르 엘라스토머 수지의 리질리언스이다.
- 제 1 항에 있어서,하기 식 4를 만족하는, 열가소성 폴리에스테르 엘라스토머 수지:[식 4]0.8 ≤ H / CS상기 식 4에서,H는 ASTM D2240에 의거하여 측정한 열가소성 폴리에스테르 엘라스토머 수지의 쇼어 D 경도이고,CS는 ISO 816 Method B에 의거하여 측정한 열가소성 폴리에스테르 엘라스토머 수지의 영구압축줄음률이다.
- 제 1 항에 있어서,고유 점도가 1.0 내지 2.4 ㎗/g인, 열가소성 폴리에스테르 엘라스토머 수지.
- 제 1 항에 있어서,상기 화학식 1로 표시되는 반복단위(a)가 1,4-부탄디올을 포함하는 글리콜 성분; 및 디카르복실산 성분의 반응으로부터 유도되고,상기 화학식 2로 표시되는 반복단위(b)가 디카르복실산 성분; 및 폴리테트라메틸렌 에테르 글리콜을 포함하는 고분자량 글리콜 성분의 반응으로부터 유도되며,상기 화학식 3으로 표시되는 반복단위(c)가 디카르복실산 성분; 및 에틸렌옥사이드 부가 폴리프로필렌글리콜을 포함하는 고분자량 글리콜 성분의 반응으로부터 유도되는, 열가소성 폴리에스테르 엘라스토머 수지.
- 제 7 항에 있어서,상기 글리콜 성분 총 몰%를 기준으로, 상기 1,4-부탄디올의 사용량이 75 몰%이상이고,상기 고분자량 글리콜 성분 총 몰%를 기준으로, 상기 폴리테트라메틸렌 에테르 글리콜의 사용량이 50 몰% 이상인, 열가소성 폴리에스테르 엘라스토머 수지.
- 제 7 항에 있어서,상기 디카르복실산 성분이 테레프탈산 및 디메틸 테레프탈레이트로 이루어진 군에서 선택된 1종 이상을 포함하고,상기 디카르복실산 성분 총 몰%를 기준으로, 상기 테레프탈산 및 상기 디메틸 테레프탈레이트로 이루어진 군에서 선택된 1종 이상의 사용량이 50 몰% 이상인, 열가소성 폴리에스테르 엘라스토머 수지.
- 제 7 항에 있어서,상기 폴리테트라메틸렌 에테르 글리콜을 포함하는 고분자량 글리콜 성분과 상기 에틸렌옥사이드 부가 폴리프로필렌글리콜을 포함하는 고분자량 글리콜 성분의 수평균 분자량이 각각 400 내지 5,000 g/mol인, 열가소성 폴리에스테르 엘라스토머 수지.
- 제 7 항에 있어서,상기 폴리테트라메틸렌 에테르 글리콜을 포함하는 고분자량 글리콜 성분과 상기 에틸렌옥사이드 부가 폴리프로필렌글리콜을 포함하는 고분자량 글리콜 성분의 수평균 분자량이 각각 1,000 내지 3,000 g/mol인, 열가소성 폴리에스테르 엘라스토머 수지.
- (1-1) 글리콜 성분; 디카르복실산 성분; 및 고분자량 글리콜 성분을 반응시켜 반응물을 얻는 단계; 및(1-2) 상기 반응물을 축중합 반응시키는 단계를 포함하고,하기 화학식 1로 표시되는 반복단위(a); 하기 화학식 2로 표시되는 반복단위(b); 및 하기 화학식 3으로 표시되는 반복단위(c)를 포함하며,하기 식 1을 만족하는, 열가소성 폴리에스테르 엘라스토머 수지의 제조방법:[화학식 1][화학식 2][화학식 3][식 1]0.3 ≤ y / z ≤ 35상기 화학식 1 내지 3에서,R1 내지 R3는 각각 독립적으로, C1 내지 C12의 직쇄상, 분지상, 또는 환상의 2가 지방족 탄화수소기; 또는 C6 내지 C12의 2가 방향족 탄화수소기이고,m은 2 내지 6의 정수이고,n은 4 내지 6의 정수이고,p는 10 내지 30의 정수이고,t는 1 내지 30의 정수이고,s는 1 내지 40의 정수이고,상기 식 1에서,y는 열가소성 폴리에스테르 엘라스토머 수지에서 상기 화학식 2로 표시되는 반복단위(b)가 차지하는 중량이며,z는 열가소성 폴리에스테르 엘라스토머 수지에서 상기 화학식 3으로 표시되는 반복단위(c)가 차지하는 중량이다.
- 제 1 항 내지 제 11 항 중 어느 한 항에 따른 열가소성 폴리에스테르 엘라스토머 수지를 포함하는, 조성물.
- 제 1 항 내지 제 11 항 중 어느 한 항에 따른 열가소성 폴리에스테르 엘라스토머 수지를 포함하는, 물품.
- 제 14 항에 있어서,상기 물품이 섬유, 발포체, 또는 신발 부품인, 물품.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02269118A (ja) * | 1988-12-27 | 1990-11-02 | Du Pont Toray Co Ltd | 柔軟性ポリエステル−ポリエーテルエラストマ、組成物およびキーパッド |
| JPH02283759A (ja) * | 1988-12-27 | 1990-11-21 | Du Pont Toray Co Ltd | ポリエステルエラストマの製造法 |
| US7422795B2 (en) * | 2004-06-21 | 2008-09-09 | E.I. Du Pont De Nemours And Company | Polytrimethylene ether ester elastomer flexible films |
| KR100933411B1 (ko) * | 2001-10-31 | 2009-12-22 | 이 아이 듀폰 디 네모아 앤드 캄파니 | 폴리트리메틸렌 에테르 에스테르 연질 분절 및테트라메틸렌 에스테르 경질 분절을 포함하는 폴리에테르에스테르 엘라스토머 |
| KR20120123267A (ko) * | 2009-12-11 | 2012-11-08 | 인비스타 테크놀러지스 에스.에이.알.엘. | 코폴리에테르 에스테르 엘라스토머 |
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| KR20210080090A (ko) | 2019-12-20 | 2021-06-30 | 주식회사 엘지화학 | 열가소성 폴리에스테르 엘라스토머의 제조 방법 |
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2023
- 2023-05-31 KR KR1020230070475A patent/KR20240171911A/ko active Pending
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2024
- 2024-05-30 WO PCT/KR2024/095856 patent/WO2024248593A1/ko not_active Ceased
- 2024-05-30 CN CN202480035436.6A patent/CN121241086A/zh active Pending
- 2024-05-30 EP EP24815967.5A patent/EP4722271A1/en active Pending
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02269118A (ja) * | 1988-12-27 | 1990-11-02 | Du Pont Toray Co Ltd | 柔軟性ポリエステル−ポリエーテルエラストマ、組成物およびキーパッド |
| JPH02283759A (ja) * | 1988-12-27 | 1990-11-21 | Du Pont Toray Co Ltd | ポリエステルエラストマの製造法 |
| KR100933411B1 (ko) * | 2001-10-31 | 2009-12-22 | 이 아이 듀폰 디 네모아 앤드 캄파니 | 폴리트리메틸렌 에테르 에스테르 연질 분절 및테트라메틸렌 에스테르 경질 분절을 포함하는 폴리에테르에스테르 엘라스토머 |
| US7422795B2 (en) * | 2004-06-21 | 2008-09-09 | E.I. Du Pont De Nemours And Company | Polytrimethylene ether ester elastomer flexible films |
| KR20120123267A (ko) * | 2009-12-11 | 2012-11-08 | 인비스타 테크놀러지스 에스.에이.알.엘. | 코폴리에테르 에스테르 엘라스토머 |
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| EP4722271A1 (en) | 2026-04-08 |
| TW202506808A (zh) | 2025-02-16 |
| KR20240171911A (ko) | 2024-12-09 |
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