| 发明名称 | Magnetic recording medium and magnetic coating composition for magnetic recording medium | ||
| 摘要 | An aspect of the present invention relates to a magnetic recording medium, which comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein the magnetic layer further comprises a compound which has a weight average molecular weight of equal to or more than 1,000 but less than 20,000 and is denoted by formula (1):; wherein, in formula (1), A denotes a monovalent substituent, R1 denotes a single bond or a divalent connecting group, and m denotes an integer ranging from 2 to 4, multiple instances of A and R1 that are present can be identical or different, at least one of the multiple instances of A that are present denotes a monovalent polymer group and X denotes a heterocyclic group of valence m. | ||
| 申请公布号 | US9562167(B2) | 申请公布日期 | 2017.02.07 |
| 申请号 | US201514673205 | 申请日期 | 2015.03.30 |
| 申请人 | FUJIFILM Corporation | 发明人 | Kikuchi Wataru;Aoshima Toshihide;Katayama Kazutoshi;Mikami Tatsuo |
| 分类号 | G11B5/708;C09D127/06;G11B5/70;G11B5/714;C08G18/79;C08G18/42 | 主分类号 | G11B5/708 |
| 代理机构 | Sughrue Mion, PLLC | 代理人 | Sughrue Mion, PLLC |
| 主权项 | 1. A magnetic recording medium, which comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein the magnetic layer further comprises a compound which has a weight average molecular weight of equal to or more than 1,000 but less than 20,000 and which is selected from the following Compounds B-8 and B-9: | ||
| 地址 | Tokyo JP | ||