KR100218850B1 - 알파-히드록시카르복실산의 이량체 고리형 에스테르의 제조 방법 및 정제 방법 - Google Patents
알파-히드록시카르복실산의 이량체 고리형 에스테르의 제조 방법 및 정제 방법 Download PDFInfo
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- KR100218850B1 KR100218850B1 KR1019970003837A KR19970003837A KR100218850B1 KR 100218850 B1 KR100218850 B1 KR 100218850B1 KR 1019970003837 A KR1019970003837 A KR 1019970003837A KR 19970003837 A KR19970003837 A KR 19970003837A KR 100218850 B1 KR100218850 B1 KR 100218850B1
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- oligomer
- cyclic ester
- boiling point
- organic solvent
- hydroxycarboxylic acid
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- -1 cyclic ester Chemical class 0.000 title claims abstract description 133
- 238000000746 purification Methods 0.000 title abstract description 8
- 238000002360 preparation method Methods 0.000 title description 4
- 239000002904 solvent Substances 0.000 claims abstract description 153
- 238000009835 boiling Methods 0.000 claims abstract description 94
- 238000000034 method Methods 0.000 claims abstract description 70
- 239000000539 dimer Substances 0.000 claims abstract description 48
- 239000003495 polar organic solvent Substances 0.000 claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 14
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 50
- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 21
- 238000005191 phase separation Methods 0.000 claims description 16
- 229920001451 polypropylene glycol Polymers 0.000 claims description 15
- 239000000243 solution Substances 0.000 claims description 15
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- 150000007513 acids Chemical class 0.000 claims description 12
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 12
- 239000012298 atmosphere Substances 0.000 claims description 10
- 229920001223 polyethylene glycol Polymers 0.000 claims description 9
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 claims description 8
- 150000002148 esters Chemical class 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- RKDVKSZUMVYZHH-UHFFFAOYSA-N 1,4-dioxane-2,5-dione Chemical compound O=C1COC(=O)CO1 RKDVKSZUMVYZHH-UHFFFAOYSA-N 0.000 claims description 7
- 239000002202 Polyethylene glycol Substances 0.000 claims description 7
- 239000012456 homogeneous solution Substances 0.000 claims description 7
- NXQMCAOPTPLPRL-UHFFFAOYSA-N 2-(2-benzoyloxyethoxy)ethyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCCOCCOC(=O)C1=CC=CC=C1 NXQMCAOPTPLPRL-UHFFFAOYSA-N 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 5
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical class OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 4
- 150000005846 sugar alcohols Polymers 0.000 claims description 4
- HSUIVCLOAAJSRE-UHFFFAOYSA-N bis(2-methoxyethyl) benzene-1,2-dicarboxylate Chemical group COCCOC(=O)C1=CC=CC=C1C(=O)OCCOC HSUIVCLOAAJSRE-UHFFFAOYSA-N 0.000 claims description 3
- 150000002170 ethers Chemical class 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 150000008431 aliphatic amides Chemical class 0.000 claims description 2
- 125000000524 functional group Chemical group 0.000 claims description 2
- 150000002334 glycols Chemical class 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004310 lactic acid Substances 0.000 claims description 2
- 235000014655 lactic acid Nutrition 0.000 claims description 2
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- 125000005498 phthalate group Chemical class 0.000 claims description 2
- 229920001515 polyalkylene glycol Chemical class 0.000 claims description 2
- 229920001521 polyalkylene glycol ether Chemical class 0.000 claims description 2
- 150000003457 sulfones Chemical class 0.000 claims description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims 2
- 150000008378 aryl ethers Chemical class 0.000 claims 2
- AFENDNXGAFYKQO-UHFFFAOYSA-N 2-hydroxybutyric acid Chemical compound CCC(O)C(O)=O AFENDNXGAFYKQO-UHFFFAOYSA-N 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 150000007514 bases Chemical class 0.000 claims 1
- 150000002894 organic compounds Chemical class 0.000 claims 1
- 125000004122 cyclic group Chemical group 0.000 abstract description 46
- 239000003960 organic solvent Substances 0.000 abstract description 16
- 239000007791 liquid phase Substances 0.000 abstract description 5
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 27
- 230000000052 comparative effect Effects 0.000 description 23
- 229960004275 glycolic acid Drugs 0.000 description 23
- 238000004821 distillation Methods 0.000 description 18
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 9
- 239000011269 tar Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000013078 crystal Substances 0.000 description 8
- 229910001873 dinitrogen Inorganic materials 0.000 description 8
- 239000000155 melt Substances 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229960002380 dibutyl phthalate Drugs 0.000 description 4
- 239000012452 mother liquor Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000011273 tar residue Substances 0.000 description 4
- PBKONEOXTCPAFI-UHFFFAOYSA-N 1,2,4-trichlorobenzene Chemical compound ClC1=CC=C(Cl)C(Cl)=C1 PBKONEOXTCPAFI-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000005809 transesterification reaction Methods 0.000 description 3
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- SESFRYSPDFLNCH-UHFFFAOYSA-N benzyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCC1=CC=CC=C1 SESFRYSPDFLNCH-UHFFFAOYSA-N 0.000 description 2
- 229920000704 biodegradable plastic Polymers 0.000 description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- IPKKHRVROFYTEK-UHFFFAOYSA-N dipentyl phthalate Chemical compound CCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCC IPKKHRVROFYTEK-UHFFFAOYSA-N 0.000 description 2
- MQHNKCZKNAJROC-UHFFFAOYSA-N dipropyl phthalate Chemical compound CCCOC(=O)C1=CC=CC=C1C(=O)OCCC MQHNKCZKNAJROC-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
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- 239000000758 substrate Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- VMCIKMLQXFLKAX-UHFFFAOYSA-N 1-methoxy-2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethane Chemical compound COCCOCCOCCOCCOCCOCCOC VMCIKMLQXFLKAX-UHFFFAOYSA-N 0.000 description 1
- IHLDEDLAZNFOJB-UHFFFAOYSA-N 6-octoxy-6-oxohexanoic acid Chemical compound CCCCCCCCOC(=O)CCCCC(O)=O IHLDEDLAZNFOJB-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- PYGXAGIECVVIOZ-UHFFFAOYSA-N Dibutyl decanedioate Chemical compound CCCCOC(=O)CCCCCCCCC(=O)OCCCC PYGXAGIECVVIOZ-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 150000001278 adipic acid derivatives Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001463 antimony compounds Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 150000001558 benzoic acid derivatives Chemical class 0.000 description 1
- 229960002903 benzyl benzoate Drugs 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012661 block copolymerization Methods 0.000 description 1
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 description 1
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- 230000001627 detrimental effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 150000003021 phthalic acid derivatives Chemical class 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
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- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 150000003329 sebacic acid derivatives Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
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- 238000003756 stirring Methods 0.000 description 1
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- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- AFNRRBXCCXDRPS-UHFFFAOYSA-N tin(ii) sulfide Chemical compound [Sn]=S AFNRRBXCCXDRPS-UHFFFAOYSA-N 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D319/10—1,4-Dioxanes; Hydrogenated 1,4-dioxanes
- C07D319/12—1,4-Dioxanes; Hydrogenated 1,4-dioxanes not condensed with other rings
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
Claims (19)
- α-히드록시 카르복실산 올리고머를 해중합하여 α-히드록시 카르복실산 이량체 고리형 에스테르를 제조하는 방법에 있어서, (1) 글리콜산, 락트산, α-히드록시부티르산 및, α-히드록시발레르산의 올리고머로부터 선택된 α-히드록시카르복실산 올리고머와, 150 내지 500범위 내의 분자량을 가지며, 230 내지 450℃범위 내의 비등점을 갖는 비염기성 고비등점 극성 유기용매 1종 이상을 함유하는 혼합액을, 대기압 또는 감압하에서, 상기 올리고머의 해중합이 일어나는 온도에까지 가열하고; (2) 상기 용융액상의 올리고머의 잔존율이 0.5 이하에 이를 때까지 상기 올리고머를 상기 용매에 녹이고; (3) 상기 올리고머의 해중합이 일어나는 온도에서 가열을 더 계속하여 상기 올리고머를 해중합시키고; (4) 상기 고비등점 극성 유기용매와 함께 형성된 상기 이량체 고리형 에스테르를 증류시키고; 이어서 (5) 상기 증류액으로부터 상기 이량체 고리형 에스테르를 회수하는 것을 특징으로 하는 α-히드록시카르복실산 이량체 고리형 에스테르의 제조방법.
- 제1항에 있어서, 고비등점 극성 유기용매는 방향족 카르복실산의 알콕시알킬 에스테르들, 지방족 카르복실산의 알콕시알킬 에스테르들, 폴리알킬렌 글리콜 에테르들, 폴리알킬렌 글리콜 에스테르들, 방향족 카르복실산 에스테르들, 지방족 카르복실산 에스테르들, 방향족 에테르들, 지방족 에테르들, 방향족 인산 에스테르들, 지방족 인산 에스테르들, 지방족 이미드 화합물들, 지방족 아미드 화합물들 및 폴리할로겐화 방향족 탄화수소들로 이루어진 군에서 선택된 1종 이상임을 특징으로 하는 방법.
- 제1항에 있어서, 고비등점 극성 유기용매는 비스(알콕시알킬)프탈레이트들, 디알킬렌 글리콜 디벤조에이트들 및 폴리에틸렌 글리콜 에테르들로 이루어진 군에서 선택된 1종 이상임을 특징으로 하는 방법.
- 제1항에 있어서, 고비등점 극성 유기용매는 디(2-메톡시에틸)프탈레이트, 디에틸렌 글리콜 디벤조에이트, 벤질부틸 프탈레이트, 디부틸 프탈레이트 또는 트리크레실 포스페이트임을 특징으로 하는 방법.
- 제1항에 있어서, α-히드록시카르복실산 올리고머와 1종 이상의 고비등점 극성 유기용매를 함유하는 혼합액은 고비등점 극성 유기용매 중의 α-히드록시카르복실산 올리고머의 용해도를 증가시키는 효과를 갖는 가용화제를 더 함유함을 특징으로 하는 방법.
- 제5항에 있어서, 가용화제는 고비등점 극성 유기용매와 상화성이 있거나 혹은 고비등점 극성 유기용매에 용해성이 있는 비염기성 화합물이고 230℃ 이상의 비등점과 친수성 관능기를 가짐을 특징으로 하는 방법.
- 제5항에 있어서, 가용화제는 230℃ 이상의 비등점을 갖는 1종 이상의 비염기성 유기화합물이고 일가 알코올과 다가 알코올들, 페놀들, 지방족 모노카르복실산과 폴리카르복실산들, 지방족 아미드들, 지방족 이미드들 및 술폰들로 이루어진 군에서 선택됨을 특징으로 하는 방법.
- 제5항에 있어서, 가용화제는 일가 알코올 또는 다가 알코올임을 특징으로 하는 방법.
- 제8항에 있어서, 일가 알코올 또는 다가 알코올은 폴리프로필렌 글리콜, 폴리에틸렌 글리콜, 글리세롤 또는 트리데칸올임을 특징으로 하는 방법.
- 제5항에 있어서, 고비등점 극성 유기용매는 방향족 카르복실산 에스테르들, 지방족 카르복실산 에스테르들, 방향족 에테르들, 지방족 에테르들, 방향족 인산 에스테르들, 지방족 인산 에스테르들, 지방족 이미드 화합물들, 지방족 아미드 화합물들 및 폴리할로겐화 방향족 탄화수소들로 이루어진 군에서 선택된 1종 이상임을 특징으로 하는 방법.
- 제5항에 있어서, 고비등점 극성 유기용매는 벤질부틸 프탈레이트, 디부틸 프탈레이트 또는 트리크레실 포스페이트이고, 가용화제는 폴리프로필렌 글리콜, 폴리에틸렌 글리콜, 글리세롤 또는 트리데칸올임을 특징으로 하는 방법.
- 제1항에 있어서, α-히드록시카르복실산 올리고머는 140℃ 이상의 용융점 Tm을 가지며, 이는 비활성 분위기에서 상기 올리고머를 10℃/분의 속도로 가열할 때 탐지되는 것임을 특징으로 하는 방법.
- 제1항에 있어서, α-히드록시카르복실산의 이랑체 고리형 에스테르는 글리콜리드 또는 락티드임을 특징으로 하는 방법.
- 제1항에 있어서, α-히드록시카르복실산 올리고머는 글리콜산 올리고머이고, α-히드록시카르복실산의 이량체 고리형 에스테르는 글리콜리드임을 특징으로 하는 방법.
- 제1항에 있어서, α-히드록시카르복실산 올리고머의 해중합은 α-히드록시카르복실산 올리고머와 1종 이상의 고비등점 극성 유기용매를 함유하는 혼합액을 적어도 230℃의 온도까지 가열하여 시행함을 특징으로 하는 방법.
- 제1항에 있어서, 고비등점 극성 유기용매를 α-히드록시카르복실산 올리고머 100 중량부당 30-5,000 중량부의 비율로 함유하는 혼합액을 대기압 또는 감압하에서 230-320℃의 온도까지 가열함을 특징으로 하는 방법.
- 제5항에 있어서, 고비등점 극성 유기용매와 가용화제를 α-히드록시카르복실산 올리고머 100 중량부당, 각각, 30-5,000중량부 및 0.1-500 중량부의 비율로 함유하는 혼합액을 대기압 또는 감압하에서 230-320℃의 온도까지 가열함을 특징으로 하는 방법.
- 제1항에 있어서, 증류액으로부터 이량체 고리형 에스테르의 회수는 증류액을 냉각시키고 경우에 따라서는 이량체 고리형 에스테르의 비용제를 첨가하여 상기 이량체 고리형 에스테르를 응고 및 석출시키고, 상기 석출된 이량체 고리형 에스테르를 분리 및 회수하여 시행함을 특징으로 하는 방법.
- 미정제의 α-히드록시카르복실산의 이량체 고리형 에스테르를 정제하는 방법에 있어서, 미정제의 α-히드록시카르복실산의 이량체 고리형 에스테르와 비등점이 230-450℃의 범위 내에 있는 1종 이상의 고비등점 극성 유기용매를 함유하는 혼합액을 대기압 또는 감압하에서 적어도 230℃의 온도에까지 가열하여 각 성분들 사이의 상 분리가 없는 균일 용액을 형성시키고; 균일 용액상 상태에서 가열을 더 계속하여 고비등점 극성 유기용매와 함께 이량체 고리형 에스테르를 증류시키고; 이어서 상기 증류액으로부터 상기 이량체 고리형 에스테르를 회수하는 것을 특징으로 하는 방법.
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JP11313996 | 1996-04-10 |
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US (1) | US5830991A (ko) |
EP (1) | EP0789023A2 (ko) |
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KR (1) | KR100218850B1 (ko) |
TW (1) | TW341569B (ko) |
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KR101274369B1 (ko) | 2008-06-20 | 2013-06-13 | 아사히 가세이 케미칼즈 가부시키가이샤 | α-히드록시산의 제조 방법 |
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JP4565208B2 (ja) * | 2000-03-31 | 2010-10-20 | 株式会社クレハ | グリコリドの精製方法 |
WO2002014303A1 (fr) * | 2000-08-11 | 2002-02-21 | Kureha Kagaku Kogyo K.K. | Procede de preparation d'esters cycliques et procede de purification desdits esters |
AU2002234968A1 (en) * | 2001-03-06 | 2002-09-19 | Kureha Kagaku Kogyo K.K. | Glycolide production process, and glycolic acid composition |
JP4394352B2 (ja) * | 2001-04-12 | 2010-01-06 | 株式会社クレハ | グリコリドの製造方法 |
JP2004043682A (ja) * | 2002-07-12 | 2004-02-12 | Nippon Shokubai Co Ltd | ポリグリコール酸の製造方法 |
AU2003293148A1 (en) * | 2002-12-23 | 2004-07-29 | Dow Global Technologies Inc. | Method of smc molding |
US20090107684A1 (en) | 2007-10-31 | 2009-04-30 | Cooke Jr Claude E | Applications of degradable polymers for delayed mechanical changes in wells |
US20040231845A1 (en) | 2003-05-15 | 2004-11-25 | Cooke Claude E. | Applications of degradable polymers in wells |
EP1717236A1 (en) * | 2005-04-28 | 2006-11-02 | Purac Biochem B.V. | Method for purifying glycolide |
JP5235311B2 (ja) * | 2007-02-20 | 2013-07-10 | 株式会社クレハ | 環状エステルの精製方法 |
EP2377858B1 (en) * | 2008-12-26 | 2014-04-30 | Kureha Corporation | Method for producing glycolide |
JP6150522B2 (ja) | 2009-12-21 | 2017-06-21 | エボニック コーポレイションEvonik Corporation | 不飽和官能基を含む環状エステルを調製するための方法及びこれから調製されるポリエステル |
CN102712617B (zh) | 2010-01-19 | 2015-06-24 | 株式会社吴羽 | 乙交酯的制造方法 |
US8911978B2 (en) | 2010-07-02 | 2014-12-16 | Metabolic Explorer | Method for the preparation of hydroxy acids |
JP2012097224A (ja) * | 2010-11-04 | 2012-05-24 | Hitachi Plant Technologies Ltd | ポリヒドロキシカルボン酸の製造装置および製造方法 |
CN104619690B (zh) | 2012-11-22 | 2016-10-12 | 株式会社吴羽 | 具备通过气液逆流接触而进行的精馏工序的乙交酯的制造方法、以及粗乙交酯的精炼方法 |
US9512100B2 (en) | 2013-03-26 | 2016-12-06 | Kureha Corporation | Method for producing glycolide |
JP6250636B2 (ja) | 2013-03-27 | 2017-12-20 | 株式会社クレハ | グリコリドの製造方法 |
JP6144562B2 (ja) | 2013-07-22 | 2017-06-07 | 株式会社クレハ | 脂肪族ポリエステルの製造方法 |
CN107286127A (zh) * | 2016-04-13 | 2017-10-24 | 中国石油化工股份有限公司 | 低酸含量1,4-二氧杂环-2,5-己二酮的制备方法 |
CN107286126A (zh) * | 2016-04-13 | 2017-10-24 | 中国石油化工股份有限公司 | 1,4-二氧杂环-2,5-己二酮的制备方法 |
CN107868076A (zh) * | 2016-09-26 | 2018-04-03 | 中国石油化工股份有限公司 | 低杂质含量乙交酯的制备 |
US11046665B2 (en) | 2017-01-24 | 2021-06-29 | Kureha Corporation | Method for producing α-hydroxycarboxylic acid dimeric cyclic ester |
JP6785165B2 (ja) | 2017-01-27 | 2020-11-18 | 株式会社クレハ | 成形体の製造方法 |
CN111699179B (zh) * | 2018-03-07 | 2021-09-17 | 株式会社吴羽 | 环状酯的制造方法 |
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CN113603671A (zh) * | 2021-08-13 | 2021-11-05 | 山东谷雨春生物科技有限公司 | 一种提高交酯收率的方法 |
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US5326887A (en) * | 1991-02-27 | 1994-07-05 | E. I. Du Pont De Nemours And Company | Process for the preparation of 1,4-dioxane-2,5-diones |
TW211577B (ko) * | 1991-07-24 | 1993-08-21 | Du Pont | |
US5420304A (en) * | 1992-03-19 | 1995-05-30 | Biopak Technology, Ltd. | Method to produce cyclic esters |
FR2692263B1 (fr) * | 1992-06-15 | 1994-09-23 | Flamel Tech Sa | Procédé de préparation d'esters cycliques d'acides-alpha-hydroxycarboxyliques. |
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-
1997
- 1997-01-23 US US08/788,907 patent/US5830991A/en not_active Expired - Lifetime
- 1997-01-28 TW TW086100909A patent/TW341569B/zh not_active IP Right Cessation
- 1997-02-06 KR KR1019970003837A patent/KR100218850B1/ko not_active IP Right Cessation
- 1997-02-07 EP EP97300823A patent/EP0789023A2/en not_active Withdrawn
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Cited By (1)
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KR101274369B1 (ko) | 2008-06-20 | 2013-06-13 | 아사히 가세이 케미칼즈 가부시키가이샤 | α-히드록시산의 제조 방법 |
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KR970061886A (ko) | 1997-09-12 |
JP4871923B2 (ja) | 2012-02-08 |
TW341569B (en) | 1998-10-01 |
JP2008297307A (ja) | 2008-12-11 |
US5830991A (en) | 1998-11-03 |
EP0789023A3 (ko) | 1997-09-10 |
EP0789023A2 (en) | 1997-08-13 |
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