KR830003516A - 중합방법 및 생성물 - Google Patents
중합방법 및 생성물 Download PDFInfo
- Publication number
- KR830003516A KR830003516A KR1019800003594A KR800003594A KR830003516A KR 830003516 A KR830003516 A KR 830003516A KR 1019800003594 A KR1019800003594 A KR 1019800003594A KR 800003594 A KR800003594 A KR 800003594A KR 830003516 A KR830003516 A KR 830003516A
- Authority
- KR
- South Korea
- Prior art keywords
- copolymer
- polymerization
- resin
- weight
- product
- Prior art date
Links
- 238000006116 polymerization reaction Methods 0.000 title claims 4
- 238000000034 method Methods 0.000 title claims 3
- 229920001577 copolymer Polymers 0.000 claims 7
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims 2
- 235000014655 lactic acid Nutrition 0.000 claims 2
- 239000004310 lactic acid Substances 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 239000003456 ion exchange resin Substances 0.000 claims 1
- 229920003303 ion-exchange polymer Polymers 0.000 claims 1
- 239000002685 polymerization catalyst Substances 0.000 claims 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
- C08G63/02—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
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
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (5)
- 락트산 60내지 95중량% 및 글리콜산 40내지%, 5중량%, 클로로포름중에서의 고유점도 0.08내지 0.30, 평균분자량의 무게 6000내지 35000이며, 중합화 촉매가 실제로 제거됨을 특징으로 하는 락트산 및 글리콜산의 중합반응에서 유도된 코폴리머.
- 상기 코폴리머가 pH 5.0내지 7.3에서 용해됨을 특징으로 하는 특허청구의 범위(1)의 코폴리머.
- 상기 코폴리머가 350내지 500mg/day로 용해됨을 특징으로 하는 특허청구의 범위(1)의 코폴리머.
- 락트산 및 글리콜산의 중합반응을 용이하게 제거할 수 있는 강산 이온교환수지 존재하에 일으킨 다음 이어서 상기 수지를 제거시킴을 특징으로 하여 상기(1)의 코폴리머를 제조하는 방법.
- 중합반응을 100내지 250℃에서 3내지 172시간동안 수행함을 특징으로 하는 상기(1)의 코폴리머를 제조하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019800003594A KR840001675B1 (ko) | 1979-09-12 | 1980-09-12 | 코폴리머의 제조 방법 |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/075,296 US4273920A (en) | 1979-09-12 | 1979-09-12 | Polymerization process and product |
| US75,296 | 1979-09-12 | ||
| KR1019800003594A KR840001675B1 (ko) | 1979-09-12 | 1980-09-12 | 코폴리머의 제조 방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR830003516A true KR830003516A (ko) | 1983-06-21 |
| KR840001675B1 KR840001675B1 (ko) | 1984-10-13 |
Family
ID=26626917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019800003594A KR840001675B1 (ko) | 1979-09-12 | 1980-09-12 | 코폴리머의 제조 방법 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR840001675B1 (ko) |
-
1980
- 1980-09-12 KR KR1019800003594A patent/KR840001675B1/ko active
Also Published As
| Publication number | Publication date |
|---|---|
| KR840001675B1 (ko) | 1984-10-13 |
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