KR20140097918A - 재생 폴리카보네이트의 제조방법 - Google Patents
재생 폴리카보네이트의 제조방법 Download PDFInfo
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- KR20140097918A KR20140097918A KR1020130010678A KR20130010678A KR20140097918A KR 20140097918 A KR20140097918 A KR 20140097918A KR 1020130010678 A KR1020130010678 A KR 1020130010678A KR 20130010678 A KR20130010678 A KR 20130010678A KR 20140097918 A KR20140097918 A KR 20140097918A
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- carbonate
- polycarbonate
- aromatic
- substituted
- bis
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004064 recycling Methods 0.000 title description 5
- 229920005668 polycarbonate resin Polymers 0.000 title description 3
- 239000004431 polycarbonate resin Substances 0.000 title description 3
- 239000004417 polycarbonate Substances 0.000 claims abstract description 89
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 89
- 125000003118 aryl group Chemical group 0.000 claims abstract description 45
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 37
- 239000002699 waste material Substances 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 239000000155 melt Substances 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000000379 polymerizing effect Effects 0.000 claims abstract description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 25
- -1 2,2-bis- (3,3-dihydroxyphenyl) 4-hydroxyphenyl Chemical group 0.000 claims description 22
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 20
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 claims description 12
- 239000001294 propane Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- FYIBPWZEZWVDQB-UHFFFAOYSA-N dicyclohexyl carbonate Chemical compound C1CCCCC1OC(=O)OC1CCCCC1 FYIBPWZEZWVDQB-UHFFFAOYSA-N 0.000 claims description 4
- GPFJHNSSBHPYJK-UHFFFAOYSA-N (3-methylphenyl) hydrogen carbonate Chemical compound CC1=CC=CC(OC(O)=O)=C1 GPFJHNSSBHPYJK-UHFFFAOYSA-N 0.000 claims description 3
- GTFQLBWTUKSJQG-UHFFFAOYSA-N 4-(4-hydroxy-2-methylphenyl)-3-methylphenol Chemical compound CC1=CC(O)=CC=C1C1=CC=C(O)C=C1C GTFQLBWTUKSJQG-UHFFFAOYSA-N 0.000 claims description 3
- WUGKVYDVIGOPSI-UHFFFAOYSA-N 4-(4-hydroxy-3-methylphenyl)-2-methylphenol Chemical group C1=C(O)C(C)=CC(C=2C=C(C)C(O)=CC=2)=C1 WUGKVYDVIGOPSI-UHFFFAOYSA-N 0.000 claims description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 3
- 125000002947 alkylene group Chemical group 0.000 claims description 3
- 125000001118 alkylidene group Chemical group 0.000 claims description 3
- MUCRFDZUHPMASM-UHFFFAOYSA-N bis(2-chlorophenyl) carbonate Chemical compound ClC1=CC=CC=C1OC(=O)OC1=CC=CC=C1Cl MUCRFDZUHPMASM-UHFFFAOYSA-N 0.000 claims description 3
- 125000002993 cycloalkylene group Chemical group 0.000 claims description 3
- QLVWOKQMDLQXNN-UHFFFAOYSA-N dibutyl carbonate Chemical compound CCCCOC(=O)OCCCC QLVWOKQMDLQXNN-UHFFFAOYSA-N 0.000 claims description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 16
- 238000006116 polymerization reaction Methods 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000003054 catalyst Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 230000006837 decompression Effects 0.000 description 7
- 239000008188 pellet Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005227 gel permeation chromatography Methods 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 125000006736 (C6-C20) aryl group Chemical group 0.000 description 1
- YIWGJFPJRAEKMK-UHFFFAOYSA-N 1-(2H-benzotriazol-5-yl)-3-methyl-8-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carbonyl]-1,3,8-triazaspiro[4.5]decane-2,4-dione Chemical compound CN1C(=O)N(c2ccc3n[nH]nc3c2)C2(CCN(CC2)C(=O)c2cnc(NCc3cccc(OC(F)(F)F)c3)nc2)C1=O YIWGJFPJRAEKMK-UHFFFAOYSA-N 0.000 description 1
- XBQRPFBBTWXIFI-UHFFFAOYSA-N 2-chloro-4-[2-(3-chloro-4-hydroxyphenyl)propan-2-yl]phenol Chemical compound C=1C=C(O)C(Cl)=CC=1C(C)(C)C1=CC=C(O)C(Cl)=C1 XBQRPFBBTWXIFI-UHFFFAOYSA-N 0.000 description 1
- YGYPMFPGZQPETF-UHFFFAOYSA-N 4-(4-hydroxy-3,5-dimethylphenyl)-2,6-dimethylphenol Chemical compound CC1=C(O)C(C)=CC(C=2C=C(C)C(O)=C(C)C=2)=C1 YGYPMFPGZQPETF-UHFFFAOYSA-N 0.000 description 1
- XAIZOTQTRJYNHC-UHFFFAOYSA-N 4-[2-(3,5-diethyl-4-hydroxyphenyl)propan-2-yl]-2,6-diethylphenol Chemical compound CCC1=C(O)C(CC)=CC(C(C)(C)C=2C=C(CC)C(O)=C(CC)C=2)=C1 XAIZOTQTRJYNHC-UHFFFAOYSA-N 0.000 description 1
- RUVGSGFORLYFFO-UHFFFAOYSA-N 4-[2-[4-hydroxy-3,5-di(propan-2-yl)phenyl]propan-2-yl]-2,6-di(propan-2-yl)phenol Chemical compound CC(C)C1=C(O)C(C(C)C)=CC(C(C)(C)C=2C=C(C(O)=C(C(C)C)C=2)C(C)C)=C1 RUVGSGFORLYFFO-UHFFFAOYSA-N 0.000 description 1
- SDDLEVPIDBLVHC-UHFFFAOYSA-N Bisphenol Z Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)CCCCC1 SDDLEVPIDBLVHC-UHFFFAOYSA-N 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002148 esters Chemical group 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 125000001188 haloalkyl group Chemical group 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 125000001072 heteroaryl group Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/20—General preparatory processes
-
- 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
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/20—General preparatory processes
- C08G64/30—General preparatory processes using carbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Dispersion Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
비교예 | 실시예 | |||||||||||
1 | 2 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||
PC Pellet 투입량 (중량%) |
- | - | 1 | 3 | 5 | 1 | 3 | 5 | 1 | 3 | 5 | |
Recipe (kg) |
BPA | 3.20 | 3.20 | 3.22 | 3.16 | 3.11 | 3.22 | 3.16 | 3.11 | 3.22 | 3.16 | 3.11 |
DPC | 3.10 | 3.10 | 3.05 | 2.97 | 2.90 | 3.05 | 2.97 | 2.90 | 3.05 | 2.97 | 2.90 | |
PC Pellet | - | - | 0.064 | 0.190 | 0.316 | 0.064 | 0.190 | 0.316 | 0.064 | 0.190 | 0.316 | |
Phenol | - | - | - | - | - | - | - | - | 0.148 | 0.442 | 0.737 | |
Pellet 용해 완료 시간(hr) |
- | - | 2.0 | 4.0 | 6.0 | 2.0 | 4.0 | 6.0 | 1.5 | 1.5 | 2.0 | |
Target MI (300℃, 1.2kg) |
20 | 8 | 20 | 20 | 20 | 8 | 8 | 8 | 8 | 8 | 8 | |
가압 시 반응조 압력(kgf/cm2) | - | - | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
감압 시 반응조 압력 (torr) |
1.0 | 0.6 | 1.0 | 0.9 | 0.8 | 0.6 | 0.5 | 0.4 | 0.6 | 0.55 | 0.5 |
비교예 | 실시예 | ||||||||||
1 | 2 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
Mn (kg/mol) |
11 | 14.5 | 12.3 | 11.6 | 11.3 | 13.6 | 13.6 | 13.1 | 13.6 | 13.6 | 13.1 |
Mw (kg/mol) |
21.8 | 28.6 | 23.7 | 22.7 | 22.5 | 27.4 | 27.3 | 26.4 | 27.4 | 27.3 | 26.4 |
MI(300℃, 1.2kg) |
20 | 7.3 | 20.6 | 21 | 19.9 | 7.3 | 7.7 | 8.6 | 7.3 | 7.7 | 8.6 |
Haze | 0.3 | 0.3 | 0.4 | 0.3 | 0.4 | 0.2 | 0.3 | 0.3 | 0.2 | 0.3 | 0.3 |
투과율 | 90.4 | 90.9 | 90.5 | 90.9 | 90.5 | 90.9 | 90.6 | 90.7 | 90.9 | 90.6 | 90.7 |
L | 95.2 | 95.1 | 94.8 | 95.1 | 95 | 95.05 | 95.02 | 94.93 | 95.05 | 95.02 | 94.93 |
a | -0.2 | -0.2 | -0.1 | -0.2 | -0.1 | -0.2 | -0.2 | -0.3 | -0.2 | -0.2 | -0.3 |
b | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 1.0 | 0.9 | 1.0 | 1.0 | 0.9 | 1.0 |
YI(D) | 1.8 | 1.8 | 1.9 | 1.7 | 1.7 | 1.8 | 1.7 | 1.9 | 1.8 | 1.7 | 1.9 |
Izod | 79 | 92.3 | 67.9 | 68.5 | 70.8 | 91.9 | 86.4 | 95.1 | 91.9 | 86.4 | 95.1 |
Claims (13)
- 디페놀류, 방향족 카보네이트 및 폐폴리카보네이트를 가열하여 용융물을 형성하는 단계;
상기 용융물을 가압하는 단계; 및
상기 가압된 용융물을 감압하여 폴리카보네이트를 중합하는 단계;를 포함하는 것을 특징으로 하는 재생 폴리카보네이트의 제조방법.
- 제1항에 있어서, 상기 가열은 180 내지 250℃의 온도에서 수행하는 것을 특징으로 하는 재생 폴리카보네이트의 제조방법.
- 제1항에 있어서, 상기 가압은 180 내지 250℃의 온도 및 1.2 내지 10 kgf/cm2의 압력에서 수행하는 것을 특징으로 하는 재생 폴리카보네이트의 제조방법.
- 제1항에 있어서, 상기 감압은 220 내지 350℃의 온도 및 0.01 내지 100 torr의 압력에서 수행하는 것을 특징으로 하는 재생 폴리카보네이트의 제조방법.
- 제1항에 있어서, 상기 디페놀류는 하기 화학식 1로 표시되는 것을 특징으로 하는 재생 폴리카보네이트의 제조방법:
[화학식 1]
상기 화학식 1에서, A는 단일 결합, 치환 또는 비치환된 탄소수 1 내지 5의 알킬렌기, 치환 또는 비치환된 탄소수 1 내지 5의 알킬리덴기, 치환 또는 비치환된 탄소수 3 내지 6의 시클로알킬렌기, 치환 또는 비치환된 탄소수 5 내지 6의 시클로알킬리덴기, -CO-, -S-, 또는 -SO2-이고, R1 및 R2는 각각 독립적으로 치환 또는 비치환된 탄소수 1 내지 30의 알킬기, 또는 치환 또는 비치환된 탄소수 6 내지 30의 아릴기이고, a 및 b는 각각 독립적으로 0 내지 4의 정수이다.
- 제1항에 있어서, 상기 디페놀류는 2,2-비스-(4-히드록시페닐)-프로판, 4,4-디히드록시디페닐, 2,4-비스-(4-히드록시페닐)-2-메틸부탄, 1,1-비스-(4-히드록시페닐)-시클로헥산, 2,2-비스-(3-클로로-4-히드록시페닐)프로판, 2,2-비스-(3,5-디클로로-4-히드록시페닐)-프로판, 2,2-비스-(3,5-디메틸-4-히드록시페닐)-프로판, 2,2-비스-(3,5-디에틸-4-히드록시페닐)-프로판, 2,2-비스-(3,5-디이소프로필-4-히드록시페닐)-프로판, 2,2-비스-(3,5-디부틸-4-히드록시페닐)-프로판, 2,2'-디메틸 4,4'-비페닐디올, 3,3-디메틸 4,4-디하이드록시 비페닐, 2,2',6,6',-테트라메틸-4,4'-비페놀 중 1종 이상 포함하는 것을 특징으로 하는 재생 폴리카보네이트의 제조방법.
- 제1항에 있어서, 상기 방향족 카보네이트는 디페닐 카보네이트, 디토릴 카보네이트, 비스(클로로페닐) 카보네이트, m-크레실 카보네이트, 디나프틸카보네이트, 비스(디페닐)카보네이트, 디에틸 카보네이트, 디메틸 카보네이트, 디부틸 카보네이트, 디시클로헥실 카보네이트 중 1종 이상 포함하는 것을 특징으로 하는 재생 폴리카보네이트의 제조방법.
- 제1항에 있어서, 상기 디페놀류 및 상기 방향족 카보네이트의 몰비(디페놀류: 방향족 카보네이트)는 1 : 0.7 내지 1.5인 것을 특징으로 하는 재생 폴리카보네이트의 제조방법.
- 제1항에 있어서, 상기 폐폴리카보네이트의 함량은 상기 디페놀류 및 상기 방향족 카보네이트 100 중량부에 대하여, 0.1 내지 10 중량부인 것을 특징으로 하는 재생 폴리카보네이트의 제조방법.
- 제1항에 있어서, 상기 용융물 형성 시, 방향족 히드록시 화합물을 더욱 투입하는 것을 특징으로 하는 재생 폴리카보네이트의 제조방법.
- 제11항에 있어서, 상기 방향족 히드록시 화합물은 하기 화학식 3으로 표시되는 것을 특징으로 하는 재생 폴리카보네이트의 제조방법:
[화학식 3]
Ar-OH
상기 화학식 3에서, Ar은 치환 또는 비치환된 탄소수 6 내지 20의 아릴기이다.
- 제11항에 있어서, 상기 방향족 히드록시 화합물의 투입량은 상기 디페놀류 및 상기 방향족 카보네이트 100 중량부에 대하여, 0.3 내지 50 중량부인 것을 특징으로 하는 재생 폴리카보네이트의 제조방법.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2016117872A1 (ko) * | 2015-01-22 | 2016-07-28 | 에스케이케미칼주식회사 | 고투명 고내열 폴리카보네이트 에스테르의 신규 제조방법 |
WO2023068591A1 (ko) * | 2021-10-18 | 2023-04-27 | 주식회사 엘지화학 | 재생 폴리카보네이트의 제조방법 및 재생 폴리카보네이트 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2016117872A1 (ko) * | 2015-01-22 | 2016-07-28 | 에스케이케미칼주식회사 | 고투명 고내열 폴리카보네이트 에스테르의 신규 제조방법 |
US10479860B2 (en) | 2015-01-22 | 2019-11-19 | Sk Chemicals Co., Ltd. | Method for preparing highly transparent and highly heat-resistant polycarbonate ester |
WO2023068591A1 (ko) * | 2021-10-18 | 2023-04-27 | 주식회사 엘지화학 | 재생 폴리카보네이트의 제조방법 및 재생 폴리카보네이트 |
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