FR2207322B1 - - Google Patents
Info
- Publication number
- FR2207322B1 FR2207322B1 FR7241410A FR7241410A FR2207322B1 FR 2207322 B1 FR2207322 B1 FR 2207322B1 FR 7241410 A FR7241410 A FR 7241410A FR 7241410 A FR7241410 A FR 7241410A FR 2207322 B1 FR2207322 B1 FR 2207322B1
- 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
-
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7241410A FR2207322A1 (en) | 1972-11-22 | 1972-11-22 | Magnetic tapes for sound or image recording - contg. copolymer of vinylidene chloride, sulphone cpd. and e.g. acrylonitrile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7241410A FR2207322A1 (en) | 1972-11-22 | 1972-11-22 | Magnetic tapes for sound or image recording - contg. copolymer of vinylidene chloride, sulphone cpd. and e.g. acrylonitrile |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2207322A1 FR2207322A1 (en) | 1974-06-14 |
FR2207322B1 true FR2207322B1 (en) | 1976-06-04 |
Family
ID=9107499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7241410A Granted FR2207322A1 (en) | 1972-11-22 | 1972-11-22 | Magnetic tapes for sound or image recording - contg. copolymer of vinylidene chloride, sulphone cpd. and e.g. acrylonitrile |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2207322A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0019894B1 (en) * | 1979-05-28 | 1983-08-24 | Hitachi Maxell Ltd. | Magnetic recording medium and process for its preparation |
JPS5864627A (en) * | 1981-10-15 | 1983-04-18 | Sony Corp | Magnetic recording medium |
-
1972
- 1972-11-22 FR FR7241410A patent/FR2207322A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2207322A1 (en) | 1974-06-14 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |