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JPS56167769A - Preparation of magnetic paint - Google Patents

Preparation of magnetic paint

Info

Publication number
JPS56167769A
JPS56167769A JP7230680A JP7230680A JPS56167769A JP S56167769 A JPS56167769 A JP S56167769A JP 7230680 A JP7230680 A JP 7230680A JP 7230680 A JP7230680 A JP 7230680A JP S56167769 A JPS56167769 A JP S56167769A
Authority
JP
Japan
Prior art keywords
preparation
magnetic powder
abrasive material
magnetic paint
magnetic
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
JP7230680A
Other languages
Japanese (ja)
Inventor
Shizuo Furuyama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7230680A priority Critical patent/JPS56167769A/en
Publication of JPS56167769A publication Critical patent/JPS56167769A/en
Pending legal-status Critical Current

Links

Landscapes

  • Paints Or Removers (AREA)

Abstract

PURPOSE: To avoid damage of a needlelike shape of a magnetic powder by performing admixting and dispersion of each component in two specified steps, in the preparation of a magnetic paint contg. a polyurethane resin and nitrocellulose as binders.
CONSTITUTION: In the preparation of a magnetic paint consisting of a magnetic powder, binder, abrasive material and additive, by use by said two polymer as binder, the magnetic powder and nitrocellulose are primarily dispersed and then secondarily dispersed with addtion of the abrasive material and a polyurethane resin. Alumina, silicon carbide, etc. of a particle size about 0.05W3μ in an amt. of about 0.01W10pts.wt./100pts.wt said magnetic powder, is used as abrasive material.
COPYRIGHT: (C)1981,JPO&Japio
JP7230680A 1980-05-29 1980-05-29 Preparation of magnetic paint Pending JPS56167769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7230680A JPS56167769A (en) 1980-05-29 1980-05-29 Preparation of magnetic paint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7230680A JPS56167769A (en) 1980-05-29 1980-05-29 Preparation of magnetic paint

Publications (1)

Publication Number Publication Date
JPS56167769A true JPS56167769A (en) 1981-12-23

Family

ID=13485443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7230680A Pending JPS56167769A (en) 1980-05-29 1980-05-29 Preparation of magnetic paint

Country Status (1)

Country Link
JP (1) JPS56167769A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6383922A (en) * 1986-09-26 1988-04-14 Konica Corp Production of magnetic recording medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52151898A (en) * 1976-06-11 1977-12-16 Hitachi Ltd Manufacturing method of magnetic paint
JPS5538693A (en) * 1978-09-13 1980-03-18 Toyo Tire & Rubber Co Ltd Magnetic recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52151898A (en) * 1976-06-11 1977-12-16 Hitachi Ltd Manufacturing method of magnetic paint
JPS5538693A (en) * 1978-09-13 1980-03-18 Toyo Tire & Rubber Co Ltd Magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6383922A (en) * 1986-09-26 1988-04-14 Konica Corp Production of magnetic recording medium

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