Electron beam curable urethane resin for magnetic recording medium, method of manufacturing the same, and magnetic recording medium using the same
An electron-beam curable polyurethane resin for magnetic recording media is produced by modifying a polyurethane resin having active hydrogen in the molecule thereof with a compound having at least two acrylic double bonds, wherein the modification is performed on the active hydrogen so that the polyurethane resin becomes electron-beam curable. By subjecting a known thermosetting polyurethane resin to electron-beam sensitive modification, the resulting resin is highly crosslinked and is thus capable of being suitably used for magnetic recording media. Also, an electron-beam curable polyurethane resin having excellent crosslinking characteristics can easily be produced from the known thermosetting polyurethane resin. Furthermore, by using the electron-beam curable polyurethane resin, a high-performance magnetic recording medium can be provided.
TDK Corporation
Y C Y C
Y10S C08G Y10T C09D
additional inventional additional inventional
Hideki Kazushi Kenichi Hiroyuki
Sasaki Tanaka Kitamura Yamada