申请人:IMAKUNI Akira
公开号:US20080241599A1
公开(公告)日:2008-10-02
A carbonic acid ester is provided that is represented by the formula below and has a melting point of no greater than 0° C.
(In the formula, R
1
and R
2
independently denote a saturated hydrocarbon group, R
1
is a branched chain, and R
2
is a straight or branched chain). There is also provided a magnetic recording medium that includes a non-magnetic support and, above the support, at least one magnetic layer including a ferromagnetic powder dispersed in a binder, the magnetic layer including the carbonic acid ester. Furthermore, there is provided a magnetic recording medium including a support and, above the support, a non-magnetic layer including a non-magnetic powder dispersed in a binder, and above the non-magnetic layer, at least one magnetic layer including a ferromagnetic powder dispersed in a binder, the non-magnetic layer and/or the magnetic layer including the carbonic acid ester.
提供一种碳酸酯,其化学式如下,并且其熔点不大于0°C。(在化学式中,R1和R2分别表示饱和碳氢基团,R1是支链,R2是直链或支链)。还提供了一种磁记录介质,包括非磁性支撑物,在支撑物上方至少有一层包括铁磁粉末分散在粘合剂中的磁性层,该磁性层包括碳酸酯。此外,还提供了一种磁记录介质,包括支撑物,在支撑物上方有一层包括非磁性粉末分散在粘合剂中的非磁性层,以及在非磁性层上方,至少有一层包括铁磁粉末分散在粘合剂中的磁性层,其中非磁性层和/或磁性层包括碳酸酯。