公开(公告)号：US4686145A

公开(公告)日：1987-08-11

申请号：US830763

申请日：1986-02-19

申请人： Masaru Honda ,  Takanori Chiba ,  Toshiaki Imokawa ,  Yoshito Harada ,  Katsumi Nagayasu

发明人： Masaru Honda ,  Takanori Chiba ,  Toshiaki Imokawa ,  Yoshito Harada ,  Katsumi Nagayasu

IPC分类号： C08G18/08 ,  G11B5/702

CPC分类号： G11B5/7021 ,  C08G18/0828 ,  Y10S428/90 ,  Y10T428/31609

摘要： A novel magnetic recording medium consisting of a base material, magnetic particles and a specific polyurethane-based binder containing incorporated sulphonate groups, a process for preparing such a magnetic recording medium which comprises coating a base material with a coating material comprising (i) an organic solvent, (ii) a polyurethane binder containing chemically incorporated sulphonate groups and (iii) magnetic particles and the most preferred binder composition therefor comprising a hexandiol-(1,6)-polycarbonate-based polyurethane.

摘要翻译： 一种由基材，磁性颗粒和含有磺酸盐基团的特定聚氨酯基粘合剂组成的新型磁记录介质，制备这种磁记录介质的方法，其包括用涂料涂覆基材，所述涂料包含（i）有机 溶剂，（ii）含有化学结合的磺酸盐基团的聚氨酯粘合剂和（iii）磁性颗粒，并且其中最优选的粘合剂组合物包含六氢二（6） - 聚碳酸酯基聚氨酯。