JPH0252930B2 - - Google Patents
Info
- Publication number
- JPH0252930B2 JPH0252930B2 JP20544682A JP20544682A JPH0252930B2 JP H0252930 B2 JPH0252930 B2 JP H0252930B2 JP 20544682 A JP20544682 A JP 20544682A JP 20544682 A JP20544682 A JP 20544682A JP H0252930 B2 JPH0252930 B2 JP H0252930B2
- Authority
- JP
- Japan
- Prior art keywords
- molecular weight
- polylactide
- lactic acid
- pressure
- 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.)
- Expired
Links
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 32
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 24
- 235000014655 lactic acid Nutrition 0.000 claims description 16
- 239000004310 lactic acid Substances 0.000 claims description 16
- 238000006068 polycondensation reaction Methods 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 description 3
- 239000012567 medical material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- -1 and racemic D Chemical compound 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ODNBVEIAQAZNNM-UHFFFAOYSA-N 1-(6-chloroimidazo[1,2-b]pyridazin-3-yl)ethanone Chemical compound C1=CC(Cl)=NN2C(C(=O)C)=CN=C21 ODNBVEIAQAZNNM-UHFFFAOYSA-N 0.000 description 1
- GUNJVIDCYZYFGV-UHFFFAOYSA-K Antimony trifluoride Inorganic materials F[Sb](F)F GUNJVIDCYZYFGV-UHFFFAOYSA-K 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- 229930182843 D-Lactic acid Natural products 0.000 description 1
- JVTAAEKCZFNVCJ-UWTATZPHSA-N D-lactic acid Chemical compound C[C@@H](O)C(O)=O JVTAAEKCZFNVCJ-UWTATZPHSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 229940022769 d- lactic acid Drugs 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- HQWPLXHWEZZGKY-UHFFFAOYSA-N diethylzinc Chemical compound CC[Zn]CC HQWPLXHWEZZGKY-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Landscapes
- Polyesters Or Polycarbonates (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20544682A JPS5996123A (ja) | 1982-11-25 | 1982-11-25 | 高分子量ポリラクタイドの製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20544682A JPS5996123A (ja) | 1982-11-25 | 1982-11-25 | 高分子量ポリラクタイドの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5996123A JPS5996123A (ja) | 1984-06-02 |
| JPH0252930B2 true JPH0252930B2 (cs) | 1990-11-15 |
Family
ID=16507009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20544682A Granted JPS5996123A (ja) | 1982-11-25 | 1982-11-25 | 高分子量ポリラクタイドの製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5996123A (cs) |
Families Citing this family (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0678425B2 (ja) * | 1984-07-06 | 1994-10-05 | 和光純薬工業株式会社 | 重合体の新規製造法 |
| 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 |
| KR970007322B1 (ko) * | 1991-12-19 | 1997-05-07 | 미쓰이도오아쓰 가가쿠 가부시키가이샤 | 폴리히드록시 카르복실산 및 그 제조방법 |
| US6096431A (en) | 1994-07-25 | 2000-08-01 | Toppan Printing Co., Ltd. | Biodegradable cards |
| US5646238A (en) * | 1994-07-27 | 1997-07-08 | Mitsui Toatsu Chemicals, Inc. | Preparation process of polyhydroxycarboxylic acid |
| JP2968466B2 (ja) * | 1995-10-31 | 1999-10-25 | 株式会社日本触媒 | 脂肪族ポリエステルの製造方法 |
| WO1999019378A1 (fr) * | 1997-10-13 | 1999-04-22 | Kureha Kagaku Kogyo K.K. | Procedes de production d'acide polyhydroxy carboxylique et de glycolide |
| KR100805413B1 (ko) | 2004-03-05 | 2008-02-20 | 미츠비시 레이온 가부시키가이샤 | 열가소성 수지 조성물 및 이를 이용한 성형품 |
| WO2009008262A1 (ja) | 2007-07-12 | 2009-01-15 | Fujifilm Corporation | 繊維強化ポリ乳酸系樹脂射出成形品 |
| BRPI0913942A2 (pt) | 2008-07-01 | 2015-10-20 | Ricoh Co Ltd | toner para formação de imagem, aparelho para formação de imagem, método para formação de imagem e cartucho de processo |
| US8383307B2 (en) | 2008-10-23 | 2013-02-26 | Ricoh Company, Limited | Toner, developer, and image forming method and apparatus using the toner |
| TWI546995B (zh) | 2009-03-13 | 2016-08-21 | Mitsui Chemicals Inc | 高分子壓電材料及其製造方法以及壓電元件 |
| JP5397756B2 (ja) | 2009-06-30 | 2014-01-22 | 株式会社リコー | 静電荷像現像用トナー |
| JP5560985B2 (ja) | 2009-08-03 | 2014-07-30 | 株式会社リコー | トナー、並びに現像剤、画像形成方法及び画像形成装置 |
| EP2469618A4 (en) | 2010-08-25 | 2017-01-25 | Mitsui Chemicals, Inc. | Macromolecular piezoelectric material and manufacturing method therefor |
| RU2572548C2 (ru) | 2011-02-18 | 2016-01-20 | Зульцер Хемтех Аг | Способ получения полигидроксикарбоновой кислоты |
| CN103930830B (zh) | 2011-09-13 | 2017-06-23 | 株式会社理光 | 电子照相调色剂、包含该调色剂的显影剂和图像形成装置 |
| US8685604B2 (en) | 2011-09-13 | 2014-04-01 | Ricoh Company, Ltd. | Toner, developer, and image forming apparatus |
| KR101467721B1 (ko) | 2011-10-13 | 2014-12-01 | 미쓰이 가가쿠 가부시키가이샤 | 고분자 압전 재료 및 그의 제조방법 |
| JP5313414B1 (ja) | 2011-12-13 | 2013-10-09 | 三井化学株式会社 | 高分子圧電材料、およびその製造方法 |
| US8735040B2 (en) | 2011-12-28 | 2014-05-27 | Ricoh Company, Ltd. | Toner, developer, and image forming apparatus |
| JP5929267B2 (ja) | 2012-02-03 | 2016-06-01 | 株式会社リコー | トナー、現像剤、画像形成装置及びブロック共重合体 |
| JP2013195486A (ja) | 2012-03-16 | 2013-09-30 | Ricoh Co Ltd | トナー及び現像剤 |
| JP6065515B2 (ja) | 2012-10-18 | 2017-01-25 | 富士ゼロックス株式会社 | 樹脂組成物及び樹脂成形体 |
| KR101789896B1 (ko) | 2013-02-01 | 2017-10-25 | 미쯔이가가꾸가부시끼가이샤 | 표시 장치 및 적층 광학 필름 |
| EP2985142A4 (en) | 2013-04-10 | 2016-08-31 | Mitsui Chemicals Inc | LAMINATE |
| KR101716880B1 (ko) | 2013-04-19 | 2017-03-15 | 가부시키가이샤 무사시노카가쿠겡큐쇼 | 지방족 폴리에스테르의 정제 방법 및 그 방법으로 정제된 지방족 폴리에스테르 |
| EP2998716B1 (en) | 2013-05-16 | 2018-07-04 | Mitsui Chemicals, Inc. | Pressing-detection device and touch panel |
| CN103300120B (zh) * | 2013-06-25 | 2015-04-22 | 南京工业大学 | 一种绿色家禽家畜脱毛剂及其制备方法 |
| KR101826402B1 (ko) | 2013-07-04 | 2018-02-06 | 미쯔이가가꾸가부시끼가이샤 | 필름 및 고분자 압전 재료 |
| CN105283491B (zh) | 2013-07-19 | 2018-10-16 | 三井化学株式会社 | 结晶化高分子膜及其制造方法 |
| EP3020549B1 (en) | 2013-09-02 | 2017-11-15 | Mitsui Chemicals, Inc. | Laminate body |
| EP3035022B1 (en) | 2013-10-07 | 2018-05-09 | Mitsui Chemicals, Inc. | Pressing-force detection device, and pressing-force-detecting touch panel |
| EP3057147A4 (en) | 2013-11-26 | 2017-06-14 | Mitsui Chemicals, Inc. | Macromolecular piezoelectric material and manufacturing method therefor |
| JP6459320B2 (ja) | 2014-09-05 | 2019-01-30 | 富士ゼロックス株式会社 | 樹脂組成物および樹脂成形体 |
| EP3471159B1 (en) | 2016-06-06 | 2022-03-16 | Mitsui Chemicals, Inc. | Piezoelectric base material, piezoelectric woven fabric, piezoelectric knitted fabric, piezoelectric device, force sensor, and actuator |
| KR102323954B1 (ko) | 2017-04-20 | 2021-11-08 | 미쯔이가가꾸가부시끼가이샤 | 압전 기재, 힘 센서 및 액추에이터 |
| KR102312154B1 (ko) | 2017-08-09 | 2021-10-12 | 미쯔이가가꾸가부시끼가이샤 | 센서 모듈 및 이것을 구비한 압력 분포 센서 |
| JP2019059832A (ja) | 2017-09-26 | 2019-04-18 | 富士ゼロックス株式会社 | 樹脂組成物およびその樹脂成形体 |
| JP6399180B1 (ja) | 2017-09-26 | 2018-10-03 | 富士ゼロックス株式会社 | 樹脂組成物およびその樹脂成形体 |
| JP7069335B2 (ja) | 2018-09-19 | 2022-05-17 | 三井化学株式会社 | 人体検出装置、ベッド装置及び人体検出システム |
| JP7466676B2 (ja) | 2020-09-25 | 2024-04-12 | 三井化学株式会社 | 圧電デバイス、力センサー、及び生体情報取得デバイス |
| EP4234598A4 (en) | 2020-10-23 | 2024-04-17 | Mitsubishi Chemical Corporation | Resin composition and molded article thereof |
-
1982
- 1982-11-25 JP JP20544682A patent/JPS5996123A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5996123A (ja) | 1984-06-02 |
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