BE715397A - - Google Patents
Info
- Publication number
- BE715397A BE715397A BE715397DA BE715397A BE 715397 A BE715397 A BE 715397A BE 715397D A BE715397D A BE 715397DA BE 715397 A BE715397 A BE 715397A
- Authority
- BE
- Belgium
Links
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
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
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)
- Polyurethanes Or Polyureas (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2281567 | 1967-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE715397A true BE715397A (en:Method) | 1968-11-18 |
Family
ID=10185496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE715397D BE715397A (en:Method) | 1967-05-17 | 1968-05-17 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE715397A (en:Method) |
| DE (1) | DE1770451A1 (en:Method) |
| FR (1) | FR1590597A (en:Method) |
| GB (1) | GB1201909A (en:Method) |
| NL (1) | NL6807022A (en:Method) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57155230A (en) | 1981-02-27 | 1982-09-25 | Daicel Chem Ind Ltd | Lactone polymer having narrow molecular weight distribution and its preparation |
| JPS57185313A (en) * | 1981-05-08 | 1982-11-15 | Daicel Chem Ind Ltd | Polyurethane and its preparation |
| GB2093853B (en) * | 1981-02-27 | 1984-09-19 | Daicel Chem | Lactone polymer and polyurethane obtained therefrom |
| FR2912751B1 (fr) | 2007-02-16 | 2012-07-13 | Arkema France | Procede de preparation de polylactones et polylactames |
| EP3670568A1 (de) | 2018-12-21 | 2020-06-24 | Covestro Deutschland AG | Verfahren zur herstellung eines polyesters |
| EP3670569A1 (de) | 2018-12-21 | 2020-06-24 | Covestro Deutschland AG | Verfahren zur herstellung eines polyesters |
| EP3670557A1 (de) | 2018-12-21 | 2020-06-24 | Covestro Deutschland AG | Verfahren zur herstellung eines polyoxyalkylenpolyesterpolyols |
| EP3670571A1 (de) | 2018-12-21 | 2020-06-24 | Covestro Deutschland AG | Verfahren zur herstellung eines polyester-polyetherpolyol-blockcopolymers |
-
1967
- 1967-05-17 GB GB2351668A patent/GB1201909A/en not_active Expired
-
1968
- 1968-05-17 DE DE19681770451 patent/DE1770451A1/de active Pending
- 1968-05-17 BE BE715397D patent/BE715397A/xx unknown
- 1968-05-17 NL NL6807022A patent/NL6807022A/xx unknown
- 1968-05-17 FR FR1590597D patent/FR1590597A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1770451A1 (de) | 1972-01-27 |
| FR1590597A (en:Method) | 1970-04-20 |
| GB1201909A (en) | 1970-08-12 |
| NL6807022A (en:Method) | 1968-11-18 |