FR2139845B1 - - Google Patents
Info
- Publication number
- FR2139845B1 FR2139845B1 FR7214783A FR7214783A FR2139845B1 FR 2139845 B1 FR2139845 B1 FR 2139845B1 FR 7214783 A FR7214783 A FR 7214783A FR 7214783 A FR7214783 A FR 7214783A FR 2139845 B1 FR2139845 B1 FR 2139845B1
- Authority
- FR
- France
- 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
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
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
-
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13908471A | 1971-04-30 | 1971-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2139845A1 FR2139845A1 (OSRAM) | 1973-01-12 |
| FR2139845B1 true FR2139845B1 (OSRAM) | 1978-05-26 |
Family
ID=22485048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7214783A Expired FR2139845B1 (OSRAM) | 1971-04-30 | 1972-04-26 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3745182A (OSRAM) |
| JP (1) | JPS5146100B1 (OSRAM) |
| BE (1) | BE782617A (OSRAM) |
| FR (1) | FR2139845B1 (OSRAM) |
| GB (1) | GB1387681A (OSRAM) |
| IT (1) | IT954493B (OSRAM) |
| NL (1) | NL163499C (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56111389U (OSRAM) * | 1980-01-30 | 1981-08-28 | ||
| CN118772383A (zh) * | 2023-04-03 | 2024-10-15 | 中国科学技术大学 | 一种聚对苯二甲酸乙二醇酯的合成方法 |
-
1971
- 1971-04-30 US US00139084A patent/US3745182A/en not_active Expired - Lifetime
-
1972
- 1972-04-21 NL NL7205402.A patent/NL163499C/xx not_active IP Right Cessation
- 1972-04-25 BE BE782617A patent/BE782617A/xx not_active IP Right Cessation
- 1972-04-26 FR FR7214783A patent/FR2139845B1/fr not_active Expired
- 1972-04-28 GB GB1987172A patent/GB1387681A/en not_active Expired
- 1972-04-28 IT IT49945/72A patent/IT954493B/it active
- 1972-05-01 JP JP47043578A patent/JPS5146100B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT954493B (it) | 1973-08-30 |
| GB1387681A (en) | 1975-03-19 |
| DE2221449B2 (de) | 1976-12-30 |
| BE782617A (fr) | 1972-10-25 |
| JPS5146100B1 (OSRAM) | 1976-12-07 |
| NL163499B (nl) | 1980-04-15 |
| NL7205402A (OSRAM) | 1972-11-01 |
| NL163499C (nl) | 1980-09-15 |
| FR2139845A1 (OSRAM) | 1973-01-12 |
| DE2221449A1 (de) | 1972-11-09 |
| US3745182A (en) | 1973-07-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| ST | Notification of lapse |