SE322788B - - Google Patents
Info
- Publication number
- SE322788B SE322788B SE1678365A SE1678365A SE322788B SE 322788 B SE322788 B SE 322788B SE 1678365 A SE1678365 A SE 1678365A SE 1678365 A SE1678365 A SE 1678365A SE 322788 B SE322788 B SE 322788B
- Authority
- SE
- Sweden
Links
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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42170264A | 1964-12-28 | 1964-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE322788B true SE322788B (fi) | 1970-04-20 |
Family
ID=23671671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1678365A SE322788B (fi) | 1964-12-28 | 1965-12-27 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE674355A (fi) |
| DE (1) | DE1280838B (fi) |
| FR (1) | FR1462616A (fi) |
| GB (1) | GB1122229A (fi) |
| NL (1) | NL6516979A (fi) |
| SE (1) | SE322788B (fi) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0339882A1 (en) * | 1988-04-27 | 1989-11-02 | MITSUI TOATSU CHEMICALS, Inc. | Process for the production of lactide |
| US5274127A (en) * | 1990-09-18 | 1993-12-28 | Biopak Technology, Ltd. | Lactide production from dehydration of aqueous lactic acid feed |
| US5444113A (en) * | 1988-08-08 | 1995-08-22 | Ecopol, Llc | End use applications of biodegradable polymers |
| US5319107A (en) * | 1990-09-18 | 1994-06-07 | Biopak Technology, Ltd. | Method to produce cyclic esters |
| US5767222A (en) * | 1988-08-08 | 1998-06-16 | Chronopol, Inc. | Degradable polydioxaneone-based materials |
| US5332839A (en) * | 1990-09-18 | 1994-07-26 | Biopak Technology, Ltd. | Catalytic production of lactide directly from lactic acid |
| US5675021A (en) * | 1992-03-19 | 1997-10-07 | Chronopol, Inc. | Method to produce and purify cyclic esters |
| US5420304A (en) * | 1992-03-19 | 1995-05-30 | Biopak Technology, Ltd. | Method to produce cyclic esters |
| US5686630A (en) * | 1993-09-29 | 1997-11-11 | Chronopol, Inc. | Purifying cyclic esters by aqueous solvent extraction |
| CA2115472C (en) * | 1993-02-17 | 2002-08-13 | William George O'brien | Melt crystallization purification of lactides |
| JP2959375B2 (ja) * | 1994-01-25 | 1999-10-06 | 株式会社島津製作所 | ラクチドの精製法および重合法 |
| CN114011462B (zh) * | 2021-11-18 | 2023-10-27 | 扬州大学 | 聚苯胺负载锌催化剂及其制备方法与应用 |
-
1965
- 1965-12-27 BE BE674355D patent/BE674355A/xx unknown
- 1965-12-27 NL NL6516979A patent/NL6516979A/xx unknown
- 1965-12-27 DE DEP38443A patent/DE1280838B/de active Pending
- 1965-12-27 SE SE1678365A patent/SE322788B/xx unknown
- 1965-12-28 GB GB5495065A patent/GB1122229A/en not_active Expired
- 1965-12-28 FR FR44021A patent/FR1462616A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE674355A (fi) | 1966-06-27 |
| NL6516979A (fi) | 1966-06-29 |
| DE1280838B (de) | 1968-10-24 |
| FR1462616A (fr) | 1966-12-16 |
| GB1122229A (en) | 1968-07-31 |