GB979528A - Magnetic transfer tapes - Google Patents
Magnetic transfer tapesInfo
- Publication number
- GB979528A GB979528A GB2192862A GB2192862A GB979528A GB 979528 A GB979528 A GB 979528A GB 2192862 A GB2192862 A GB 2192862A GB 2192862 A GB2192862 A GB 2192862A GB 979528 A GB979528 A GB 979528A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic
- layer
- adhesive layer
- polyester
- esters
- Prior art date
- 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
- G11B5/7021—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 a polyurethane or a polyisocyanate
- G11B5/7022—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 a polyurethane or a polyisocyanate containing mixtures of polyurethanes or polyisocyanates with other polymers
-
- 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
-
- 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
- G11B5/7021—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 a polyurethane or a polyisocyanate
Landscapes
- Paints Or Removers (AREA)
Abstract
979,528. Magnetic structures. AGFA A.G. June 6, 1962 [June 15, 1961], No. 21928/62. Heading H1H. A magnetic transfer tape comprises a temporary support of polyethylene terephthalate polyester on which is disposed a magnetic layer comprising magnetic particles in a binder consisting of polyurethane resin with a physically drying non-cross-linked resin, an adhesive layer being disposed on the magnetizable layer. The magnetic layer, which may contain γFe 2 O 3 particles, may be as disclosed in Specification 979,527, and various polyurethane resins and physically drying resins are specified. The adhesive layer may be formed from wax rubber adhesive, acrylonitrile rubber, polyacrylic esters, vinyl acetate copolymer, vinyl halide copolymers, vinyl esters and cellulose esters. The thicknesses of the magnetic layer and the adhesive layer may be 25Á and 5Á, respectively. In use the adhesive layer of the transfer tape is brought into contact with the final supportwhich may be P.V.C., cellulose acetate or metal-heated from the polyester side to about 100‹ C. with light pressure application, and then the polyester temporary support is stripped off. The magnetic coating may be applied to films, cheques, sorting cards, discs and drums. Specification 547,672 also is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA37665A DE1204811B (en) | 1961-06-15 | 1961-06-15 | Process for the production of magnetizable transmission bands |
Publications (1)
Publication Number | Publication Date |
---|---|
GB979528A true GB979528A (en) | 1965-01-06 |
Family
ID=6930356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2192862A Expired GB979528A (en) | 1961-06-15 | 1962-06-06 | Magnetic transfer tapes |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE618985A (en) |
CH (1) | CH417689A (en) |
DE (1) | DE1204811B (en) |
GB (1) | GB979528A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3497411A (en) * | 1968-03-14 | 1970-02-24 | Ibm | Method and materials for printing smooth magnetic layers |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3325555A1 (en) * | 1983-07-15 | 1985-01-24 | Basf Ag, 6700 Ludwigshafen | METHOD FOR PRODUCING MAGNETIC RECORDING CARRIERS |
DE3325556A1 (en) * | 1983-07-15 | 1985-01-24 | Basf Ag, 6700 Ludwigshafen | METHOD FOR PRODUCING MAGNETIC RECORDING CARRIERS WITH REAR LAYER |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1097704B (en) * | 1956-12-20 | 1961-01-19 | Du Pont | Method of making a magnetic recording tape |
-
1961
- 1961-06-15 DE DEA37665A patent/DE1204811B/en active Pending
-
1962
- 1962-05-21 CH CH612662A patent/CH417689A/en unknown
- 1962-06-06 GB GB2192862A patent/GB979528A/en not_active Expired
- 1962-06-15 BE BE618985A patent/BE618985A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3497411A (en) * | 1968-03-14 | 1970-02-24 | Ibm | Method and materials for printing smooth magnetic layers |
Also Published As
Publication number | Publication date |
---|---|
BE618985A (en) | 1962-12-17 |
CH417689A (en) | 1966-07-31 |
DE1204811B (en) | 1965-11-11 |
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