BE726516A - - Google Patents
Info
- Publication number
- BE726516A BE726516A BE726516DA BE726516A BE 726516 A BE726516 A BE 726516A BE 726516D A BE726516D A BE 726516DA BE 726516 A BE726516 A BE 726516A
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
- G11B5/7023—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing polyesters, polyethers, silicones, polyvinyl resins, polyacrylresins or epoxy resins
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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0053/68A GB1194432A (en) | 1968-01-08 | 1968-01-08 | Process for the Polymerisation of beta-Propiolactones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE726516A true BE726516A (el) | 1969-07-07 |
Family
ID=9715347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE726516D BE726516A (el) | 1968-01-08 | 1969-01-06 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3591566A (el) |
| BE (1) | BE726516A (el) |
| DE (1) | DE1900595A1 (el) |
| FR (1) | FR1604068A (el) |
| GB (1) | GB1194432A (el) |
| NL (1) | NL6900174A (el) |
-
1968
- 1968-01-08 GB GB0053/68A patent/GB1194432A/en not_active Expired
- 1968-12-20 US US785766A patent/US3591566A/en not_active Expired - Lifetime
- 1968-12-31 FR FR1604068D patent/FR1604068A/fr not_active Expired
-
1969
- 1969-01-06 NL NL6900174A patent/NL6900174A/xx unknown
- 1969-01-06 BE BE726516D patent/BE726516A/xx unknown
- 1969-01-07 DE DE19691900595 patent/DE1900595A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1900595A1 (de) | 1970-02-05 |
| US3591566A (en) | 1971-07-06 |
| NL6900174A (el) | 1969-07-10 |
| FR1604068A (el) | 1971-07-05 |
| GB1194432A (en) | 1970-06-10 |