JPS55122234A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS55122234A
JPS55122234A JP2688079A JP2688079A JPS55122234A JP S55122234 A JPS55122234 A JP S55122234A JP 2688079 A JP2688079 A JP 2688079A JP 2688079 A JP2688079 A JP 2688079A JP S55122234 A JPS55122234 A JP S55122234A
Authority
JP
Japan
Prior art keywords
recording medium
expression
approximately
magnetic recording
binder
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.)
Granted
Application number
JP2688079A
Other languages
Japanese (ja)
Other versions
JPS6130324B2 (en
Inventor
Yasuyuki Yamada
Tatsuji Kitamoto
Nobuo Tsuji
Nobuo Aoki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP2688079A priority Critical patent/JPS55122234A/en
Publication of JPS55122234A publication Critical patent/JPS55122234A/en
Publication of JPS6130324B2 publication Critical patent/JPS6130324B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To obtain a magnetic recording medium which is superior in surface and B-H characteristic and has a good-durability magnetic layer, by using a specific polyurethane resin as components of the binder of the magnetic layer which is formed by dispersing ferromagnetic minute powder.
CONSTITUTION: Polyurethane resin having the repeat unit indicated by expression I (m is 5W100; R is a bivalent radical introduced by the alicylic or aromatic compound including two or more hydroxyalkyl and hydroxyalkoxyl of C1WC4; R' is expression II, III, etc.,; R" is expressions IV, V, etc.,), for example, resin indicated by expression VI (molecular weight of approximately 200,000) is used as components of the binder. That is, the binder above of approximately 10W100wt.pt. is mixed into ferromagnetic powder of a 100wt.pt., and this material is applied onto a nonmagnetic support material to form a magnetic layer of a dried thickness of approximately 0.5W6μ, thus obtaining a magnetic recording medium.
COPYRIGHT: (C)1980,JPO&Japio
JP2688079A 1979-03-08 1979-03-08 Magnetic recording medium Granted JPS55122234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2688079A JPS55122234A (en) 1979-03-08 1979-03-08 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2688079A JPS55122234A (en) 1979-03-08 1979-03-08 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS55122234A true JPS55122234A (en) 1980-09-19
JPS6130324B2 JPS6130324B2 (en) 1986-07-12

Family

ID=12205590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2688079A Granted JPS55122234A (en) 1979-03-08 1979-03-08 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS55122234A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57158017A (en) * 1981-03-20 1982-09-29 Hitachi Maxell Ltd Magnetic recording medium
JPS598129A (en) * 1982-07-06 1984-01-17 Matsushita Electric Ind Co Ltd Flexible magnetic disk
JPS61915A (en) * 1984-06-13 1986-01-06 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS619832A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS619827A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS619829A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS619826A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS619831A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS6117221A (en) * 1984-06-25 1986-01-25 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS6120221A (en) * 1984-07-06 1986-01-29 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS6134724A (en) * 1984-07-25 1986-02-19 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS61204826A (en) * 1985-03-07 1986-09-10 Nippon Synthetic Chem Ind Co Ltd:The Binder for magnetic recording medium
JPS61214212A (en) * 1985-03-20 1986-09-24 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS6292132A (en) * 1985-10-18 1987-04-27 Fuji Photo Film Co Ltd Manufacture of magnetic recording medium
JPS62246130A (en) * 1986-04-18 1987-10-27 Fuji Photo Film Co Ltd Magnetic recording medium
JPH04356724A (en) * 1991-06-21 1992-12-10 Konica Corp Magnetic recording medium
JP2010111934A (en) * 2008-11-10 2010-05-20 Kyoeisha Chem Co Ltd Rust-preventive agent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH052981Y2 (en) * 1986-11-07 1993-01-25

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505921A (en) * 1973-05-21 1975-01-22
JPS516522A (en) * 1974-07-05 1976-01-20 Hitachi Ltd TASOSHIKEIJIKI HETSUDO
JPS54157603A (en) * 1978-06-01 1979-12-12 Toyo Boseki Magnetic recording medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505921A (en) * 1973-05-21 1975-01-22
JPS516522A (en) * 1974-07-05 1976-01-20 Hitachi Ltd TASOSHIKEIJIKI HETSUDO
JPS54157603A (en) * 1978-06-01 1979-12-12 Toyo Boseki Magnetic recording medium

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126132B2 (en) * 1981-03-20 1986-06-19 Hitachi Maxell
JPS57158017A (en) * 1981-03-20 1982-09-29 Hitachi Maxell Ltd Magnetic recording medium
JPS598129A (en) * 1982-07-06 1984-01-17 Matsushita Electric Ind Co Ltd Flexible magnetic disk
JPH0456368B2 (en) * 1982-07-06 1992-09-08 Matsushita Electric Ind Co Ltd
JPS61915A (en) * 1984-06-13 1986-01-06 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPH0576694B2 (en) * 1984-06-13 1993-10-25 Konishiroku Photo Ind
JPS619827A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS619831A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS6117221A (en) * 1984-06-25 1986-01-25 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS619826A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS619829A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPH0576690B2 (en) * 1984-06-25 1993-10-25 Konishiroku Photo Ind
JPH0576688B2 (en) * 1984-06-25 1993-10-25 Konishiroku Photo Ind
JPS619832A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPH0576692B2 (en) * 1984-06-25 1993-10-25 Konishiroku Photo Ind
JPH0576691B2 (en) * 1984-06-25 1993-10-25 Konishiroku Photo Ind
JPS6120221A (en) * 1984-07-06 1986-01-29 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPH0576693B2 (en) * 1984-07-06 1993-10-25 Konishiroku Photo Ind
JPS6134724A (en) * 1984-07-25 1986-02-19 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS61204826A (en) * 1985-03-07 1986-09-10 Nippon Synthetic Chem Ind Co Ltd:The Binder for magnetic recording medium
JPH0677304B2 (en) * 1985-03-07 1994-09-28 日本合成化学工業株式会社 Binder for magnetic recording medium
JPS61214212A (en) * 1985-03-20 1986-09-24 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPH0559490B2 (en) * 1985-10-18 1993-08-31 Fuji Photo Film Co Ltd
JPS6292132A (en) * 1985-10-18 1987-04-27 Fuji Photo Film Co Ltd Manufacture of magnetic recording medium
JPS62246130A (en) * 1986-04-18 1987-10-27 Fuji Photo Film Co Ltd Magnetic recording medium
JPH04356724A (en) * 1991-06-21 1992-12-10 Konica Corp Magnetic recording medium
JP2010111934A (en) * 2008-11-10 2010-05-20 Kyoeisha Chem Co Ltd Rust-preventive agent

Also Published As

Publication number Publication date
JPS6130324B2 (en) 1986-07-12

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