JP6685544B2 - ポリエチレン樹脂の物性評価方法 - Google Patents
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- 229920013716 polyethylene resin Polymers 0.000 title claims description 86
- 230000000704 physical effect Effects 0.000 title claims description 27
- 238000011156 evaluation Methods 0.000 title 1
- 238000012360 testing method Methods 0.000 claims description 53
- 238000000034 method Methods 0.000 claims description 31
- 238000005259 measurement Methods 0.000 claims description 7
- 230000014509 gene expression Effects 0.000 claims description 6
- 238000009795 derivation Methods 0.000 claims 1
- 239000013078 crystal Substances 0.000 description 33
- 229920001038 ethylene copolymer Polymers 0.000 description 32
- 230000035882 stress Effects 0.000 description 29
- 230000007774 longterm Effects 0.000 description 25
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 19
- 239000005977 Ethylene Substances 0.000 description 18
- 239000004711 α-olefin Substances 0.000 description 18
- 238000004364 calculation method Methods 0.000 description 14
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- 150000001875 compounds Chemical class 0.000 description 10
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 238000005227 gel permeation chromatography Methods 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012968 metallocene catalyst Substances 0.000 description 5
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
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- 239000007789 gas Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 230000037048 polymerization activity Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 2
- ZGEGCLOFRBLKSE-UHFFFAOYSA-N 1-Heptene Chemical compound CCCCCC=C ZGEGCLOFRBLKSE-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- GQEZCXVZFLOKMC-UHFFFAOYSA-N 1-hexadecene Chemical compound CCCCCCCCCCCCCCC=C GQEZCXVZFLOKMC-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- HFDVRLIODXPAHB-UHFFFAOYSA-N 1-tetradecene Chemical compound CCCCCCCCCCCCC=C HFDVRLIODXPAHB-UHFFFAOYSA-N 0.000 description 2
- DCTOHCCUXLBQMS-UHFFFAOYSA-N 1-undecene Chemical compound CCCCCCCCCC=C DCTOHCCUXLBQMS-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 125000005234 alkyl aluminium group Chemical group 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003426 co-catalyst Substances 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- VAMFXQBUQXONLZ-UHFFFAOYSA-N n-alpha-eicosene Natural products CCCCCCCCCCCCCCCCCCC=C VAMFXQBUQXONLZ-UHFFFAOYSA-N 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 229920006126 semicrystalline polymer Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229940106006 1-eicosene Drugs 0.000 description 1
- FIKTURVKRGQNQD-UHFFFAOYSA-N 1-eicosene Natural products CCCCCCCCCCCCCCCCCC=CC(O)=O FIKTURVKRGQNQD-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000002879 Lewis base Substances 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 210000004081 cilia Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910021482 group 13 metal Inorganic materials 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000007527 lewis bases Chemical class 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 125000005373 siloxane group Chemical group [SiH2](O*)* 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N37/00—Details not covered by any other group of this subclass
- G01N37/005—Measurement methods not based on established scientific theories
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F10/02—Ethene
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N37/00—Details not covered by any other group of this subclass
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2500/00—Characteristics or properties of obtained polyolefins; Use thereof
- C08F2500/02—Low molecular weight, e.g. <100,000 Da.
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2500/00—Characteristics or properties of obtained polyolefins; Use thereof
- C08F2500/07—High density, i.e. > 0.95 g/cm3
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2500/00—Characteristics or properties of obtained polyolefins; Use thereof
- C08F2500/13—Environmental stress cracking resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0071—Creep
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0092—Visco-elasticity, solidification, curing, cross-linking degree, vulcanisation or strength properties of semi-solid materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
- G01N2203/0212—Theories, calculations
- G01N2203/0218—Calculations based on experimental data
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- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
本出願は、2016年11月24日付の韓国特許出願第10−2016−0157722号に基づく優先権の利益を主張し、当該韓国特許出願の文献に開示されたすべての内容は本明細書の一部として含まれる。
前記ポリエチレン樹脂の連結分子の含有量比率(Tie Molecule fraction)および絡み合い分子量(entanglement molecular weight、Me)を測定する段階;
前記連結分子の含有量比率、および絡み合い分子量との関係式からフルノッチクリープテスト(full notch creep test、FNCT)時間に対する有意因子を導出する段階;および
前記最大応力およびフルノッチクリープテスト(FNCT)時間に対する有意因子により、ポリエチレン樹脂成形品のフルノッチクリープテスト(FNCT)時間値を予測する段階を含む、ポリエチレン樹脂の物性評価方法を提供する。
前記ポリエチレン樹脂の連結分子の含有量比率(Tie Molecule fraction)および絡み合い分子量(entanglement molecular weight、Me)を測定する段階;
前記連結分子の含有量比率、および絡み合い分子量との関係式からフルノッチクリープテスト(full notch creep test、FNCT)時間に対する有意因子を導出する段階;および
前記最大応力およびフルノッチクリープテスト(FNCT)時間に対する有意因子により、ポリエチレン樹脂成形品のフルノッチクリープテスト(FNCT)時間値を予測する段階を含む。
前記ポリエチレン樹脂の連結分子の含有量比率(Tie Molecule fraction)および絡み合い分子量(entanglement molecular weight、Me)を測定する段階;
前記連結分子の含有量比率、および絡み合い分子量との関係式からフルノッチクリープテスト(full notch creep test、FNCT)時間に対する有意因子を導出する段階;および
前記最大応力およびフルノッチクリープテスト(FNCT)時間に対する有意因子により、ポリエチレン樹脂成形品のフルノッチクリープテスト(FNCT)時間値を予測する段階を含む。
rは、ランダムコイルの両末端間の距離(end−to−end distance of a random coil)であり、
b2は、3/2<r>2であり、
lcは、下記計算式3の結晶厚さ(crystal thickness)であり、
laは、下記計算式4の非結晶層の厚さ(amorphous layer thickness)であり、<r>は、2×lc+laで計算することができ、
ρaは、非結晶相の密度(density of amorphous phase)であって、852kg/m3であり、
ωcは、質量分率結晶化度(weight fraction crystallinity)である。
結晶の表面積(m2/mol)=重量平均分子量(kg/mol)/[結晶密度(kg/m3)×結晶厚さ(m)]
G0 N=6/(5Jo)
Fc=0.23(Me−0.19)×(Tie3.99)
Meは、ポリエチレン樹脂の絡み合い分子量であり、
Tieは、ポリエチレン樹脂の連結分子の含有量比率(%)である。
Fcは、ポリエチレン樹脂のFNCT有意因子である。
log(Fn)=A×log(Fc)−B
logは、常用対数であり、
Fnは、数式により予測されるポリエチレン樹脂試験片の最小FNCT値であり、
Fcは、前記数式1−1で計算したポリエチレン樹脂のFNCT有意因子であり、
Aは、FNCT係数で、約1.15〜約1.20であり、
Bは、FNCT切片値で、約0.5〜約0.6である。
メタロセン担持触媒によって合成され、下記表1の物性を有する、下記表1の物性値を有するポリエチレン樹脂を40真空オーブンで一晩乾燥し、ツインスクリュー押出機(twin screw extruder、BA−19、製造会社BAUTECH)を用いてペレット形態に製造した。
Claims (7)
- ポリエチレン樹脂試験片に対して、1,200秒(sec)以内に永久変形が発生しない最大応力を導出する段階;
前記ポリエチレン樹脂の連結分子の含有量比率(Tie Molecule fraction)および絡み合い分子量(entanglement molecular weight、Me)を測定する段階;
前記連結分子の含有量比率、および絡み合い分子量との関係式からフルノッチクリープテスト(full notch creep test、FNCT)時間に対する有意因子を導出する段階;および
前記最大応力およびフルノッチクリープテスト(FNCT)時間に対する有意因子により、ポリエチレン樹脂成形品のフルノッチクリープテスト(FNCT)時間値を予測する段階を含む、ポリエチレン樹脂の物性評価方法。 - 前記永久変形の測定は、6.0MPaの条件で進行する、請求項1に記載のポリエチレン樹脂の物性評価方法。
- FNCT有意因子を導出する段階は、下記数式1−1を用いて進行させる、請求項1に記載のポリエチレン樹脂の物性評価方法:
[数式1−1]
Fc=0.23(Me−0.19)×(Tie3.99)
前記数式1−1において、
Meは、ポリエチレン樹脂の絡み合い分子量であり、
Tieは、ポリエチレン樹脂の連結分子の含有量比率(%)であり、
Fcは、ポリエチレン樹脂のFNCT有意因子である。 - 前記ポリエチレン樹脂成形品のフルノッチクリープテスト(FNCT)時間値を予測する段階は、下記数式1−2を用いて進行させる、請求項3に記載のポリエチレン樹脂の物性評価方法:
[数式1−2]
log(Fn)=A×log(Fc)−B
前記数式1−2において、
logは、常用対数であり、
Fnは、数式により予測されるポリエチレン樹脂試験片の最小FNCT値であり、F
cは、前記数式1−1で計算したポリエチレン樹脂のFNCT有意因子であり、
Aは、FNCT係数で、1.15〜1.20であり、
Bは、FNCT切片値で、0.5〜0.6である。 - 前記ポリエチレン樹脂は、密度が0.930g/cm3〜0.965g/cm3である、請求項1に記載のポリエチレン樹脂の物性評価方法。
- 前記ポリエチレン樹脂の重量平均分子量が85,000g/mol〜150,000g/molである、請求項1に記載のポリエチレン樹脂の物性評価方法。
- 前記ポリエチレン樹脂の絡み合い分子量(entanglement molecular weight、Me)が50g/mol〜50,000g/molであり、連結分子の含有量比率(Tie Molecule fraction)が0.01〜0.20である、請求項1に記載のポリエチレン樹脂の物性評価方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2016-0157722 | 2016-11-24 | ||
KR1020160157722A KR102097132B1 (ko) | 2016-11-24 | 2016-11-24 | 폴리에틸렌 수지의 물성 평가 방법 |
PCT/KR2017/012422 WO2018097508A1 (ko) | 2016-11-24 | 2017-11-03 | 폴리에틸렌 수지의 물성 평가 방법 |
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JP2019529950A JP2019529950A (ja) | 2019-10-17 |
JP6685544B2 true JP6685544B2 (ja) | 2020-04-22 |
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KR102068795B1 (ko) * | 2016-11-24 | 2020-01-21 | 주식회사 엘지화학 | 고분자의 물성을 예측하는 방법 |
CN111133013B (zh) * | 2017-09-29 | 2023-05-12 | Lg化学株式会社 | 预测管道用树脂组合物的长期耐久性的方法以及用于管道用树脂的烯烃聚合物 |
KR102219312B1 (ko) * | 2018-08-30 | 2021-02-24 | 주식회사 엘지화학 | 폴리에틸렌 및 이의 염소화 폴리에틸렌 |
KR102431339B1 (ko) | 2018-12-10 | 2022-08-10 | 주식회사 엘지화학 | 폴리에틸렌 및 이의 염소화 폴리에틸렌 |
EP3865517A4 (en) | 2019-09-27 | 2022-05-18 | LG Chem, Ltd. | SUPPORTED HYBRID CATALYST AND METHOD OF MAKING POLYOLEFIN THEREWITH |
KR102381429B1 (ko) * | 2020-08-13 | 2022-04-01 | 주식회사 삼양사 | 블로우 몰딩용 열가소성 폴리에스테르계 엘라스토머 수지의 내구성 평가 방법 |
CN115219634A (zh) * | 2022-08-26 | 2022-10-21 | 南方电网科学研究院有限责任公司 | 电缆用可交联聚乙烯绝缘料抗烧焦性的评估方法 |
EP4332150A1 (en) * | 2022-09-05 | 2024-03-06 | Borealis AG | Method of blending polyethylene based blends |
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- 2017-11-03 JP JP2019534625A patent/JP6685544B2/ja active Active
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KR102097132B1 (ko) | 2020-04-03 |
JP2019529950A (ja) | 2019-10-17 |
US20190086308A1 (en) | 2019-03-21 |
CN108885224A (zh) | 2018-11-23 |
CN108885224B (zh) | 2022-02-22 |
KR20180058574A (ko) | 2018-06-01 |
EP3517976A1 (en) | 2019-07-31 |
EP3517976B1 (en) | 2020-12-30 |
EP3517976A4 (en) | 2019-11-06 |
WO2018097508A1 (ko) | 2018-05-31 |
US10775287B2 (en) | 2020-09-15 |
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