JPS5613520A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5613520A
JPS5613520A JP8747679A JP8747679A JPS5613520A JP S5613520 A JPS5613520 A JP S5613520A JP 8747679 A JP8747679 A JP 8747679A JP 8747679 A JP8747679 A JP 8747679A JP S5613520 A JPS5613520 A JP S5613520A
Authority
JP
Japan
Prior art keywords
property
magnetic recording
magnetic
recording medium
nitrocellulose
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.)
Pending
Application number
JP8747679A
Other languages
Japanese (ja)
Inventor
Norimichi Tokuda
Shigeru Takamatsu
Hideo Kobayashi
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP8747679A priority Critical patent/JPS5613520A/en
Priority to NL8003850A priority patent/NL8003850A/en
Priority to GB8022605A priority patent/GB2054622B/en
Priority to DE19803026357 priority patent/DE3026357A1/en
Publication of JPS5613520A publication Critical patent/JPS5613520A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a magnetic recording medium that has disper sibility and surface property improved by forming a magnetic layer with mixing magnetic powder in a binder containing -SO3Na group containing polyester resin and nitrocellulose and thermoplastic polyurethane and then by performing cross-linking with isocyanate.
CONSTITUTION: Ferromagnetic powder is dispersed in a binder containing a regin introduced -SO3Na group as a side chain for polyester resin and further nitrocellulose and thermoplastic polyurethane prepolymer. Then, a mixture of this magnetic coating and a cross-linking agent of an isocyanate compound is applied on a polyester film, etc., and hardened by drying to form a magnetic recording tape. Consequently, the magnetic recording tape can be obtained which has improved durability, friction property, physical property such as still property, electromagnetic converting property in addition to dispersibility and surface property and is used for video recording.
COPYRIGHT: (C)1981,JPO&Japio
JP8747679A 1979-07-12 1979-07-12 Magnetic recording medium Pending JPS5613520A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8747679A JPS5613520A (en) 1979-07-12 1979-07-12 Magnetic recording medium
NL8003850A NL8003850A (en) 1979-07-12 1980-07-03 Magnetic recording tape - using binder comprising polyester with sodium sulphonate gps. and polyurethane prepolymer
GB8022605A GB2054622B (en) 1979-07-12 1980-07-10 Magnetic recording medium
DE19803026357 DE3026357A1 (en) 1979-07-12 1980-07-11 MAGNETIC RECORDING MEDIUM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8747679A JPS5613520A (en) 1979-07-12 1979-07-12 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5613520A true JPS5613520A (en) 1981-02-09

Family

ID=13915967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8747679A Pending JPS5613520A (en) 1979-07-12 1979-07-12 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5613520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161132A (en) * 1982-11-15 1983-09-24 Daicel Chem Ind Ltd Magnetic coating composition for magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161132A (en) * 1982-11-15 1983-09-24 Daicel Chem Ind Ltd Magnetic coating composition for magnetic recording medium
JPH0230089B2 (en) * 1982-11-15 1990-07-04 Daicel Chem

Similar Documents

Publication Publication Date Title
JPS55139634A (en) Magnetic recording medium
JPS5744227A (en) Magnetic recording medium
JPS5538672A (en) Magnetic recording medium
JPS5538671A (en) Magnetic recording medium
JPS5613519A (en) Magnetic recording medium
JPS5613524A (en) Magnetic recording medium
JPS57208636A (en) Magnetic recording medium
JPS5613520A (en) Magnetic recording medium
JPS5613522A (en) Magnetic recording medium
JPS57135428A (en) Magnetic recording medium
JPS57183627A (en) Magnetic recording medium
JPS5750327A (en) Magnetic recording medium
JPS5746325A (en) Magnetic recording medium
JPS5671822A (en) Magnetic recording medium
JPS5613521A (en) Magnetic recording medium
JPS5613523A (en) Magnetic recording medium
JPS55125539A (en) Magnetic recording substance
JPS5746324A (en) Magnetic recording medium
JPS5528559A (en) Magnetic recording medium
JPS55129933A (en) Magnetic recording medium
JPS55139636A (en) Magnetic recording medium
JPS55139633A (en) Magnetic recording medium
JPS5528557A (en) Magnetic recording medium
JPS55129932A (en) Magnetic recording medium
JPS5517811A (en) Magnetic recording media