SU627527A1 - Magnetic record working layer binder - Google Patents
Magnetic record working layer binderInfo
- Publication number
- SU627527A1 SU627527A1 SU762358007A SU2358007A SU627527A1 SU 627527 A1 SU627527 A1 SU 627527A1 SU 762358007 A SU762358007 A SU 762358007A SU 2358007 A SU2358007 A SU 2358007A SU 627527 A1 SU627527 A1 SU 627527A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- weight
- vinyl
- copolymer
- magnetic recording
- working layer
- Prior art date
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
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Description
Изобретение относитс к области маг- HHTHOfr записи, а именно к носител м магнитной записи.The invention relates to the field of magHHTHOfr recording, namely to magnetic recording media.
Известно св зующее вещество рабочего сло носител магнитной записи, в состав которого входит каучук . Известное св зующее вещество обеспечивает соединение распределенных в нем магнитных частиц в виде тонкого рабочего сло , размещенного иа немагнитной основе но- сител магнитной записи. Недостаток подобного св зующего вещества состоит в малой износоустойчивости образованного им рабочего сло носител магнитной записи .Known binder of the working layer of the carrier magnetic recording, which includes rubber. The known binder provides the connection of the magnetic particles distributed in it in the form of a thin working layer placed in the non-magnetic base of the magnetic recording carrier. The disadvantage of such a binder is the low durability of the working layer of the magnetic recording medium formed by it.
Известно также св зующее вещество рабочего сло носител магнитной записи, состо щее из винилового сополимера и пластификатора З. Это св дутодее вещество обеспечивает относительно выео- кую износоустойчивость рабочего сло носител магнитной записи. Недостаток вещества состоит в малой эластичности образованного им рабочего сло носител магнитной записи.It is also known that the binder of the working layer of the magnetic recording carrier, consisting of a vinyl copolymer and plasticizer Z. This binder substance provides a relatively worn-out durability of the working layer of the magnetic recording carrier. The lack of matter consists in the low elasticity of the working layer of the magnetic recording carrier formed by it.
Цель изобретени - повышение эластичности рабочего сло носител магнитной записи.The purpose of the invention is to increase the elasticity of the working layer of the magnetic recording carrier.
Это достигаетс за счет того, что св зующее вещество рабочего сло носител магнитной записи в качестве пластификатора содержит 20-9О вес. % полиэфирестеруретана , а в качестве винилового сополимера - 1О-8О вес. % сополиме ра винилформал , винилацетата и винилового спирта, а виниловый сополимер содержит не менее 80 вес. % вннклформальных групп от его общего веса.This is achieved due to the fact that the binder of the working layer of the magnetic recording carrier contains as a plasticizer 20–9O weight. % polyetherterrethane, and as a vinyl copolymer - 1O-8O weight. % copolymer of vinylformal, vinyl acetate and vinyl alcohol, and vinyl copolymer contains at least 80 wt. % of internal groups of its total weight.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD18643275A DD121692A1 (en) | 1975-06-04 | 1975-06-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
SU627527A1 true SU627527A1 (en) | 1978-10-05 |
Family
ID=5500527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762358007A SU627527A1 (en) | 1975-06-04 | 1976-05-17 | Magnetic record working layer binder |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE840479A (en) |
DD (1) | DD121692A1 (en) |
DE (1) | DE2610695A1 (en) |
FR (1) | FR2313728A1 (en) |
GB (1) | GB1548174A (en) |
SU (1) | SU627527A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5919230A (en) * | 1982-07-21 | 1984-01-31 | Fuji Photo Film Co Ltd | Magnetic recording medium |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3911196A (en) * | 1974-09-30 | 1975-10-07 | Ampex | Magnetic tape binder system |
-
1975
- 1975-06-04 DD DD18643275A patent/DD121692A1/xx unknown
-
1976
- 1976-03-13 DE DE19762610695 patent/DE2610695A1/en not_active Ceased
- 1976-04-07 BE BE165925A patent/BE840479A/en not_active IP Right Cessation
- 1976-05-17 SU SU762358007A patent/SU627527A1/en active
- 1976-06-03 FR FR7616845A patent/FR2313728A1/en active Granted
- 1976-06-04 GB GB2318976A patent/GB1548174A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1548174A (en) | 1979-07-04 |
BE840479A (en) | 1976-08-02 |
FR2313728A1 (en) | 1976-12-31 |
DE2610695A1 (en) | 1976-12-23 |
FR2313728B1 (en) | 1979-03-16 |
DD121692A1 (en) | 1976-08-12 |
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