Title:
【考案の名称】作業用機械
Document Type and Number:
Japanese Patent JPS58108595
Kind Code:
U
Abstract:
PCT No. PCT/JP83/00006 Sec. 371 Date Sep. 9, 1983 Sec. 102(e) Date Sep. 9, 1983 PCT Filed Jan. 10, 1983 PCT Pub. No. WO83/02519 PCT Pub. Date Jul. 21, 1983.The magnetic recording medium of this invention contains in the binder a modified polymer prepared by graft-polymerizing a nitrogen-containing polymerizable unsaturated compound onto a polymer by irradiating with radiation to modify the polymer. The modified polymer used in this invention is produced by the graft-copolymerization utilizing the irradiation of radiation, the applicable range of polymers used for producing the modified polymer is wide and, thereby providing a large industrial value. Also, since the modified polymer used in this invention has a nitrogen-containing side chain, the modified polymer contributes to improve the dispersibility and packing properties of a magnetic powder in the magnetic layer. Accordingly, a magnetic recording medium having excellent magnetic characteristics and durability can be provided by this invention.
Inventors:
Kita Takeshi
Kazuo Kotake
Tetsuya Inada
Kazuo Kotake
Tetsuya Inada
Application Number:
JP435582U
Publication Date:
July 23, 1983
Filing Date:
January 16, 1982
Export Citation:
International Classes:
E02F9/26; A01D41/12; A01D75/18; G08B21/00; G10L13/00; G11B5/702; (IPC1-7): G08B21/00; A01D41/12; A01D75/18; E02F9/26; G10L1/00
Domestic Patent References:
| JPS558978B2 | 1980-03-07 | |||
| JPS5598799A | 1980-07-28 | |||
| JPS5632899B2 | 1981-07-30 | |||
| JPS56166504A | 1981-12-21 | |||
| JPS53120348A | 1978-10-20 | |||
| JP52135885B | ||||
| JP56132137B |