Electron beam curable urethane resin for magnetic recording medium, method of manufacturing the same and magnetic recording medium using the same
申请人:Sasaki Hideki
公开号:US20060115687A1
公开(公告)日:2006-06-01
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.
一种电子束固化的聚氨酯树脂用于磁记录介质的生产方法,通过将具有分子中活性氢的聚氨酯树脂与至少具有两个丙烯酸双键的化合物进行改性,从而在活性氢上进行改性,使聚氨酯树脂变得可电子束固化。通过将已知的热固性聚氨酯树脂进行电子束敏感改性,所得到的树脂高度交联,因此可适当用于磁记录介质。此外,可以从已知的热固性聚氨酯树脂中轻松地生产出具有优异交联特性的电子束固化聚氨酯树脂。此外,通过使用电子束固化聚氨酯树脂,可以提供高性能的磁记录介质。