发明授权
- 专利标题: Process for producing magnetic recording material
- 专利标题(中): 磁记录材料的制造方法
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申请号: US447597申请日: 1982-12-07
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公开(公告)号: US4428974A公开(公告)日: 1984-01-31
- 发明人: Tsutomu Okita , Kyoichi Naruo , Akira Ushimaru
- 申请人: Tsutomu Okita , Kyoichi Naruo , Akira Ushimaru
- 申请人地址: JPX Kanagawa
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JPX Kanagawa
- 优先权: JPX56-195575 19811207
- 主分类号: G11B5/702
- IPC分类号: G11B5/702 ; B05D3/06 ; C09D5/23 ; C09D133/04 ; C09D133/08 ; C09D175/04 ; G11B5/84 ; G11B5/842
摘要:
A process for producing a magnetic recording material having excellent electromagnetic characteristics and sufficient abrasion resistance is disclosed. The process comprises the steps of coating on a support a magnetic recording composition containing a compound having an unsaturated bond polymerizable by irradiation with electron beams, an organic solvent capable of dissolving the compound and a ferromagnetic powder. The compound is subjected in sequence to a coating process on a nonmagnetic support, irradiated with an electron beam in an atmosphere containing oxygen at a concentration of 10,000 ppm or more and subjected to a smoothening treatment utilizing a specular surface, followed by an electron beam irradiation in an atmosphere containing oxygen at a concentration of 3,000 ppm or less.
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