KR920013277A - 자기기록 매체 - Google Patents
자기기록 매체 Download PDFInfo
- Publication number
- KR920013277A KR920013277A KR1019900021140A KR900021140A KR920013277A KR 920013277 A KR920013277 A KR 920013277A KR 1019900021140 A KR1019900021140 A KR 1019900021140A KR 900021140 A KR900021140 A KR 900021140A KR 920013277 A KR920013277 A KR 920013277A
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic recording
- recording medium
- recording media
- binder
- coating 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
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back 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
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (2)
- 비자성 지지체의 한쪽 면에는 강자성 분말을 결합제중에 분산시켜서 된 자성층이 형성되어 있고 그 반대쪽면에는 백코팅층이 형성되어 있는 자기기록매체에 있어서, 상기 백코팅층은 1내지 5중량%의 카르복시기를 함유하는 아크릴 수지와 폴리우레탄 수지를 결합제로 사용하여 여기에 무기입자를 분산시켜서 된 것임을 특징으로 하는 자기기록 매체.
- 제1항에 있어서, 상기 아크릴 수지와 상기 폴리우레탄 수지는 3:7 내지 8:2의 중량비로 혼합된 것임을 특징으로 하는 자기기록 매체.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900021140A KR930001886B1 (ko) | 1990-12-20 | 1990-12-20 | 자기기록 매체 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900021140A KR930001886B1 (ko) | 1990-12-20 | 1990-12-20 | 자기기록 매체 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920013277A true KR920013277A (ko) | 1992-07-28 |
KR930001886B1 KR930001886B1 (ko) | 1993-03-19 |
Family
ID=19307936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900021140A KR930001886B1 (ko) | 1990-12-20 | 1990-12-20 | 자기기록 매체 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR930001886B1 (ko) |
-
1990
- 1990-12-20 KR KR1019900021140A patent/KR930001886B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR930001886B1 (ko) | 1993-03-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 19980115 Year of fee payment: 6 |
|
LAPS | Lapse due to unpaid annual fee |