CN1108669A - 聚乳酸的制备方法 - Google Patents
聚乳酸的制备方法 Download PDFInfo
- Publication number
- CN1108669A CN1108669A CN95100144A CN95100144A CN1108669A CN 1108669 A CN1108669 A CN 1108669A CN 95100144 A CN95100144 A CN 95100144A CN 95100144 A CN95100144 A CN 95100144A CN 1108669 A CN1108669 A CN 1108669A
- Authority
- CN
- China
- Prior art keywords
- lactic acid
- poly
- rac
- lactide
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000747 poly(lactic acid) Polymers 0.000 title claims abstract description 92
- 238000004519 manufacturing process Methods 0.000 title abstract description 28
- 239000004626 polylactic acid Substances 0.000 title abstract description 6
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000007790 solid phase Substances 0.000 claims abstract description 14
- 229920000642 polymer Polymers 0.000 claims abstract description 9
- -1 poly(lactic acid) Polymers 0.000 claims description 173
- 238000006116 polymerization reaction Methods 0.000 claims description 67
- 238000000034 method Methods 0.000 claims description 24
- 239000002904 solvent Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 230000000379 polymerizing effect Effects 0.000 abstract 2
- 239000007858 starting material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 63
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 34
- 239000000047 product Substances 0.000 description 32
- 238000006243 chemical reaction Methods 0.000 description 23
- 229910052757 nitrogen Inorganic materials 0.000 description 18
- 230000004927 fusion Effects 0.000 description 17
- 239000011541 reaction mixture Substances 0.000 description 16
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 15
- 230000015556 catabolic process Effects 0.000 description 13
- 238000006731 degradation reaction Methods 0.000 description 13
- 229910001220 stainless steel Inorganic materials 0.000 description 13
- 239000010935 stainless steel Substances 0.000 description 13
- 238000004458 analytical method Methods 0.000 description 12
- 239000011521 glass Substances 0.000 description 10
- 239000006187 pill Substances 0.000 description 9
- 230000007704 transition Effects 0.000 description 9
- 244000046052 Phaseolus vulgaris Species 0.000 description 8
- 235000005489 dwarf bean Nutrition 0.000 description 8
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 8
- 238000003756 stirring Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000004821 distillation Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 230000035484 reaction time Effects 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 235000014655 lactic acid Nutrition 0.000 description 4
- 239000004310 lactic acid Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- RKDVKSZUMVYZHH-UHFFFAOYSA-N 1,4-dioxane-2,5-dione Chemical compound O=C1COC(=O)CO1 RKDVKSZUMVYZHH-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229940058905 antimony compound for treatment of leishmaniasis and trypanosomiasis Drugs 0.000 description 1
- 150000001463 antimony compounds Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229920006238 degradable plastic Polymers 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- VAPILSUCBNPFBS-UHFFFAOYSA-L disodium 2-oxido-5-[[4-[(4-sulfophenyl)diazenyl]phenyl]diazenyl]benzoate Chemical compound [Na+].[Na+].Oc1ccc(cc1C([O-])=O)N=Nc1ccc(cc1)N=Nc1ccc(cc1)S([O-])(=O)=O VAPILSUCBNPFBS-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- JBFHTYHTHYHCDJ-UHFFFAOYSA-N gamma-caprolactone Chemical compound CCC1CCC(=O)O1 JBFHTYHTHYHCDJ-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- 150000003755 zirconium compounds Chemical class 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/80—Solid-state polycondensation
-
- 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
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
- C08G63/08—Lactones or lactides
-
- 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
-
- 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
- C08G63/88—Post-polymerisation treatment
- C08G63/90—Purification; Drying
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22165/94 | 1994-01-21 | ||
JP22165/1994 | 1994-01-21 | ||
JP2216594 | 1994-01-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1108669A true CN1108669A (zh) | 1995-09-20 |
CN1068011C CN1068011C (zh) | 2001-07-04 |
Family
ID=12075213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN95100144A Expired - Lifetime CN1068011C (zh) | 1994-01-21 | 1995-01-20 | 聚乳酸的制备方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5508378A (zh) |
EP (1) | EP0664309B1 (zh) |
KR (1) | KR950032368A (zh) |
CN (1) | CN1068011C (zh) |
DE (1) | DE69509927T2 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101037500B (zh) * | 2006-01-27 | 2010-05-26 | 中国人民解放军军事医学科学院毒物药物研究所 | 含胺基小分子化合物的用途及制备生物降解材料的方法 |
CN103819658A (zh) * | 2012-11-19 | 2014-05-28 | 中国石油化工股份有限公司 | 一种生产具有低丙交酯单体含量的聚乳酸的方法 |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0755956B1 (en) * | 1995-07-25 | 2004-01-14 | Toyota Jidosha Kabushiki Kaisha | Method for producing polylactic acid |
FI103581B1 (fi) * | 1996-11-11 | 1999-07-30 | Neste Oy | Menetelmä polyhydroksihappojen valmistamiseksi |
US5698322A (en) * | 1996-12-02 | 1997-12-16 | Kimberly-Clark Worldwide, Inc. | Multicomponent fiber |
WO1998036012A1 (en) | 1997-02-14 | 1998-08-20 | Fortum Oil And Gas Oy | Method for the removal and recovery of lactide from polylactide |
FI107337B (fi) * | 1997-02-14 | 2001-07-13 | Fortum Oil & Gas Oy | Menetelmä laktidin polymeroimiseksi |
US6153231A (en) * | 1997-06-25 | 2000-11-28 | Wm. Wrigley Jr. Company | Environmentally friendly chewing gum bases |
US6089009A (en) | 1997-08-28 | 2000-07-18 | Belmont Textile Machinery Co., Inc. | Fluid-jet false-twisting method and product |
US6268434B1 (en) | 1997-10-31 | 2001-07-31 | Kimberly Clark Worldwide, Inc. | Biodegradable polylactide nonwovens with improved fluid management properties |
US6201068B1 (en) | 1997-10-31 | 2001-03-13 | Kimberly-Clark Worldwide, Inc. | Biodegradable polylactide nonwovens with improved fluid management properties |
US5910545A (en) * | 1997-10-31 | 1999-06-08 | Kimberly-Clark Worldwide, Inc. | Biodegradable thermoplastic composition |
US6309988B1 (en) | 1997-12-22 | 2001-10-30 | Kimberly-Clark Worldwide, Inc. | Biodisintegratable nonwovens with improved fluid management properties |
US6544455B1 (en) | 1997-12-22 | 2003-04-08 | Kimberly-Clark Worldwide, Inc. | Methods for making a biodegradable thermoplastic composition |
US6306782B1 (en) | 1997-12-22 | 2001-10-23 | Kimberly-Clark Worldwide, Inc. | Disposable absorbent product having biodisintegratable nonwovens with improved fluid management properties |
US6140458A (en) * | 1998-04-28 | 2000-10-31 | Mitsui Chemicals, Inc. | Preparation process of polyester |
US6194483B1 (en) | 1998-08-31 | 2001-02-27 | Kimberly-Clark Worldwide, Inc. | Disposable articles having biodegradable nonwovens with improved fluid management properties |
US6197860B1 (en) | 1998-08-31 | 2001-03-06 | Kimberly-Clark Worldwide, Inc. | Biodegradable nonwovens with improved fluid management properties |
US6613363B1 (en) | 1998-10-02 | 2003-09-02 | Wm. Wrigley Jr. Company | Biodegradable chewing gum bases including plasticized poly(D,L-lactic acid) and copolymers thereof |
US6500897B2 (en) | 2000-12-29 | 2002-12-31 | Kimberly-Clark Worldwide, Inc. | Modified biodegradable compositions and a reactive-extrusion process to make the same |
US6579934B1 (en) | 2000-12-29 | 2003-06-17 | Kimberly-Clark Worldwide, Inc. | Reactive extrusion process for making modifiied biodegradable compositions |
US7053151B2 (en) | 2000-12-29 | 2006-05-30 | Kimberly-Clark Worldwide, Inc. | Grafted biodegradable polymer blend compositions |
US6552124B2 (en) | 2000-12-29 | 2003-04-22 | Kimberly-Clark Worldwide, Inc. | Method of making a polymer blend composition by reactive extrusion |
US6890989B2 (en) | 2001-03-12 | 2005-05-10 | Kimberly-Clark Worldwide, Inc. | Water-responsive biodegradable polymer compositions and method of making same |
JP2003192773A (ja) | 2001-12-26 | 2003-07-09 | Mitsui Chemicals Inc | 生体吸収性ポリヒドロキシカルボン酸及びその製造法 |
DE60228341D1 (de) * | 2002-09-24 | 2008-09-25 | Gumlinck As | Biologisch abbaubarer kaugummi enthaltend wenigstens ein biologish abbaubares polymer mit hochmolekularem gewicht |
US7507561B2 (en) * | 2004-05-20 | 2009-03-24 | Reliance Life Sciences Pvt. Ltd. | Process for the production of polylactic acid (PLA) from renewable feedstocks |
ATE543851T1 (de) * | 2007-04-04 | 2012-02-15 | Indian Inst Technology Bombay | Verfahren zur herstellung von milchsäurepolymeren von hoher kristallinität und hohem molekulargewicht |
US8759446B2 (en) * | 2008-06-30 | 2014-06-24 | Fina Technology, Inc. | Compatibilized polypropylene and polylactic acid blends and methods of making and using same |
US8268913B2 (en) * | 2008-06-30 | 2012-09-18 | Fina Technology, Inc. | Polymeric blends and methods of using same |
US8545971B2 (en) * | 2008-06-30 | 2013-10-01 | Fina Technology, Inc. | Polymeric compositions comprising polylactic acid and methods of making and using same |
CN101665565B (zh) * | 2008-09-01 | 2012-01-04 | 南京工业大学 | 一种用卡宾衍生物催化制备聚乳酸的方法 |
JP5559482B2 (ja) * | 2009-02-23 | 2014-07-23 | 株式会社クレハ | 脂肪族ポリエステルの製造方法 |
US9458287B2 (en) | 2009-02-23 | 2016-10-04 | Kureha Corporation | Aliphatic polyester manufacturing method |
BE1018882A3 (fr) * | 2009-09-10 | 2011-10-04 | Galactic Sa | Procede de recyclage stereospecifique d'un melange de polymeres a base de pla. |
JP6327859B2 (ja) | 2011-03-18 | 2018-05-23 | シェーファー カルク ゲーエムベーハー ウント コー. カーゲー | 微細構造複合粒子 |
US10010436B2 (en) | 2012-09-20 | 2018-07-03 | Dotter Intellectual Pte, Ltd. | Polymeric stent and methods of manufacturing the same |
KR101489263B1 (ko) * | 2014-02-26 | 2015-02-04 | 썬텍 주식회사 | 고분자 스텐트의 제조방법 및 폴리락트산 고분자 스텐트 |
KR101692988B1 (ko) | 2014-11-27 | 2017-01-04 | 롯데케미칼 주식회사 | 폴리락타이드 수지의 제조 방법 |
CN105733000A (zh) * | 2014-12-10 | 2016-07-06 | 黑龙江鑫达企业集团有限公司 | 一种聚乳酸薄膜的制备 |
FI20195716A1 (en) * | 2019-08-30 | 2021-03-01 | Finnfoam Oy | Genetically modified fungi and related methods and uses |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3890283A (en) * | 1973-06-04 | 1975-06-17 | American Cyanamid Co | Process for post-polymerizing polyglycolic acid |
US4300565A (en) * | 1977-05-23 | 1981-11-17 | American Cyanamid Company | Synthetic polyester surgical articles |
US4539981A (en) * | 1982-11-08 | 1985-09-10 | Johnson & Johnson Products, Inc. | Absorbable bone fixation device |
JPH0781204B2 (ja) * | 1987-04-21 | 1995-08-30 | 株式会社バイオマテリアルユニバ−ス | ポリ乳酸繊維 |
JP2714454B2 (ja) * | 1988-11-07 | 1998-02-16 | 三井東圧化学株式会社 | 生体吸収性ポリエステルの製造方法 |
IT1249045B (it) * | 1991-02-21 | 1995-02-11 | Himont Inc | Processo per la sintesi allo stato solido di polimeri dell'acido lattico e prodotti cosi ottenuti |
DE59208259D1 (de) * | 1991-05-31 | 1997-04-30 | Hoechst Ag | Verfahren zur Herstellung von hochmolekularem linearem Polyester |
JPH0543665A (ja) * | 1991-08-13 | 1993-02-23 | Toyobo Co Ltd | 脂肪族ポリエステルの製造方法 |
US5357034A (en) * | 1992-09-08 | 1994-10-18 | Camelot Technologies Inc. | Lactide polymerization |
US5278256A (en) * | 1992-09-16 | 1994-01-11 | E. I. Du Pont De Nemours And Company | Rapidly degradable poly (hydroxyacid) compositions |
US5338822A (en) * | 1992-10-02 | 1994-08-16 | Cargill, Incorporated | Melt-stable lactide polymer composition and process for manufacture thereof |
DE4300420A1 (de) * | 1993-01-09 | 1994-07-14 | Basf Ag | Polylactide mit erhöhter Flexibilität |
-
1995
- 1995-01-17 EP EP95100570A patent/EP0664309B1/en not_active Expired - Lifetime
- 1995-01-17 DE DE69509927T patent/DE69509927T2/de not_active Expired - Lifetime
- 1995-01-19 KR KR1019950000863A patent/KR950032368A/ko not_active Application Discontinuation
- 1995-01-20 CN CN95100144A patent/CN1068011C/zh not_active Expired - Lifetime
- 1995-01-20 US US08/375,286 patent/US5508378A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101037500B (zh) * | 2006-01-27 | 2010-05-26 | 中国人民解放军军事医学科学院毒物药物研究所 | 含胺基小分子化合物的用途及制备生物降解材料的方法 |
CN103819658A (zh) * | 2012-11-19 | 2014-05-28 | 中国石油化工股份有限公司 | 一种生产具有低丙交酯单体含量的聚乳酸的方法 |
CN103819658B (zh) * | 2012-11-19 | 2016-02-24 | 中国石油化工股份有限公司 | 一种生产具有低丙交酯单体含量的聚乳酸的方法 |
Also Published As
Publication number | Publication date |
---|---|
US5508378A (en) | 1996-04-16 |
KR950032368A (ko) | 1995-12-20 |
DE69509927T2 (de) | 2000-01-27 |
EP0664309A3 (en) | 1996-03-27 |
EP0664309A2 (en) | 1995-07-26 |
EP0664309B1 (en) | 1999-06-02 |
DE69509927D1 (de) | 1999-07-08 |
CN1068011C (zh) | 2001-07-04 |
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