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。

公开(公告)号：US06713521B2

公开(公告)日：2004-03-30

申请号：US09538786

申请日：2000-03-30

申请人： Takanori Chiba ,  Takuya Matsumoto ,  Keiji Ono ,  Takehiro Shimizu

发明人： Takanori Chiba ,  Takuya Matsumoto ,  Keiji Ono ,  Takehiro Shimizu

IPC分类号： C08G1828

CPC分类号： C08G18/6611 ,  C08G2101/0025 ,  C08G2101/005

摘要： A method of preparing a rigid polyurethane foam having improved thermal conductivity, and a composition for such rigid polyurethane foam is provided. In the preparation a rigid polyurethane foam from a composition comprising an aromatic polyisocyanate, a polyol, a blowing agent, a catalyst, a surfactant and other aids, the blowing agent is a blend of cyclopentane and water, and the polyol contains a polyether polyol prepared by addition-polymerizing an alkylene oxide to o-toluenediamine as an initiator.

摘要翻译： 提供了一种制备具有改进的导热性的硬质聚氨酯泡沫的方法，以及用于这种硬质聚氨酯泡沫的组合物。 在由包含芳族多异氰酸酯，多元醇，发泡剂，催化剂，表面活性剂和其它助剂的组合物制备硬质聚氨酯泡沫体时，发泡剂是环戊烷和水的共混物，多元醇含有制备的聚醚多元醇 通过将烯化氧加成聚合成邻甲苯二胺作为引发剂。