-
公开(公告)号:US08889903B2
公开(公告)日:2014-11-18
申请号:US13176252
申请日:2011-07-05
申请人: Kazuaki Sakaki , Hiroto Sugahara , Tetsuya Ohashi , Tetsuya Kume , Masahiko Ikka , Hirochika Naganawa , Kojiro Shimojo
发明人: Kazuaki Sakaki , Hiroto Sugahara , Tetsuya Ohashi , Tetsuya Kume , Masahiko Ikka , Hirochika Naganawa , Kojiro Shimojo
IPC分类号: C07C231/02
CPC分类号: C07C231/02 , C07C235/06
摘要: A rare earth metal extractant in the form of a dialkyl diglycol amic acid is synthesized by reacting diglycolic anhydride with a dialkylamine in an aprotic polar solvent, with a molar ratio of dialkylamine to diglycolic anhydride being at least 1.0, and removing the aprotic polar solvent.
摘要翻译: 二烷基二甘醇酰胺酸形式的稀土金属萃取剂是通过在非质子传递极性溶剂中使二甘醇酸酐与二烷基胺反应,二烷基胺与二甘醇酸酐的摩尔比至少为1.0,除去非质子极性溶剂来合成的。
-
公开(公告)号:US20120004459A1
公开(公告)日:2012-01-05
申请号:US13176252
申请日:2011-07-05
申请人: Kazuaki Sakaki , Hiroto Sugahara , Tetsuya Ohashi , Tetsuya Kume , Masahiko Ikka , Hirochika Naganawa , Kojiro Shimojo
发明人: Kazuaki Sakaki , Hiroto Sugahara , Tetsuya Ohashi , Tetsuya Kume , Masahiko Ikka , Hirochika Naganawa , Kojiro Shimojo
IPC分类号: C07C231/02
CPC分类号: C07C231/02 , C07C235/06
摘要: A rare earth metal extractant in the form of a dialkyl diglycol amic acid is synthesized by reacting diglycolic anhydride with a dialkylamine in an aprotic polar solvent, with a molar ratio of dialkylamine to diglycolic anhydride being at least 1.0, and removing the aprotic polar solvent.
摘要翻译: 二烷基二甘醇酰胺酸形式的稀土金属萃取剂是通过在非质子传递极性溶剂中使二甘醇酸酐与二烷基胺反应,二烷基胺与二甘醇酸酐的摩尔比至少为1.0,除去非质子极性溶剂来合成的。
-
公开(公告)号:US08519184B2
公开(公告)日:2013-08-27
申请号:US13176214
申请日:2011-07-05
申请人: Kazuaki Sakaki , Hiroto Sugahara , Tetsuya Ohashi , Tetsuya Kume , Masahiko Ikka , Hirochika Naganawa , Kojiro Shimojo
发明人: Kazuaki Sakaki , Hiroto Sugahara , Tetsuya Ohashi , Tetsuya Kume , Masahiko Ikka , Hirochika Naganawa , Kojiro Shimojo
IPC分类号: C07C229/22
CPC分类号: C07C231/02 , C07C235/06
摘要: A rare earth metal extractant in the form of a dialkyl diglycol amic acid is synthesized by reacting diglycolic anhydride with a dialkylamine in a synthesis medium. A molar ratio (B/A) of dialkylamine (B) to diglycolic anhydride (A) is at least 1.0. A non-polar or low-polar solvent in which the dialkyl diglycol amic acid is dissolvable is used as the synthesis medium.
摘要翻译: 通过在合成介质中使二甘醇酸酐与二烷基胺反应合成二烷基二甘醇酰胺酸形式的稀土金属萃取剂。 二烷基胺(B)与二甘醇酸酐(A)的摩尔比(B / A)为至少1.0。 使用其中可溶解二烷基二甘醇酰胺酸的非极性或低极性溶剂作为合成介质。
-
公开(公告)号:US20120004458A1
公开(公告)日:2012-01-05
申请号:US13176214
申请日:2011-07-05
申请人: Kazuaki Sakaki , Hiroto Sugahara , Tetsuya Ohashi , Tetsuya Kume , Masahiko Ikka , Hirochika Naganawa , Kojiro Shimojo
发明人: Kazuaki Sakaki , Hiroto Sugahara , Tetsuya Ohashi , Tetsuya Kume , Masahiko Ikka , Hirochika Naganawa , Kojiro Shimojo
IPC分类号: C07C231/02
CPC分类号: C07C231/02 , C07C235/06
摘要: A rare earth metal extractant in the form of a dialkyl diglycol amic acid is synthesized by reacting diglycolic anhydride with a dialkylamine in a synthesis medium. A molar ratio (B/A) of dialkylamine (B) to diglycolic anhydride (A) is at least 1.0. A non-polar or low-polar solvent in which the dialkyl diglycol amic acid is dissolvable is used as the synthesis medium.
摘要翻译: 通过在合成介质中使二甘醇酸酐与二烷基胺反应合成二烷基二甘醇酰胺酸形式的稀土金属萃取剂。 二烷基胺(B)与二甘醇酸酐(A)的摩尔比(B / A)为至少1.0。 使用其中可溶解二烷基二甘醇酰胺酸的非极性或低极性溶剂作为合成介质。
-
公开(公告)号:US5418285A
公开(公告)日:1995-05-23
申请号:US88773
申请日:1993-07-08
IPC分类号: C08F8/32
CPC分类号: C08F8/32
摘要: Proposed is a novel vinyl chloride-based copolymeric resin suitable as an electron beam-curable binder resin for forming a magnetic recording layer of a magnetic recording medium. The binder resin is a vinyl chloride-based copolymeric resin containing monomeric units having a hydroxy group which is reacted with an ethylenically unsaturated monomeric compound having an isocyanato group in a molecule and then subjected to a modification reaction with an amine compound. The magnetic recording medium, e.g., magnetic recording tape, prepared by using the binder resin is excellent in the surface properties such as gloss and traveling resistance as well as in the magnetic properties such as residual magnetic flux density and squareness ratio of the magnetic hysteresis loop.
摘要翻译: 提出了一种适用于形成磁记录介质的磁记录层的电子束固化性粘合剂树脂的新型氯乙烯基共聚树脂。 粘合剂树脂是含有具有羟基的单体单元的氯乙烯系共聚树脂,其与分子中具有异氰酸酯基的烯属不饱和单体化合物反应,然后与胺化合物进行改性反应。 通过使用粘合剂树脂制备的磁记录介质例如磁记录带在光泽和行进阻力等表面性能以及磁滞回线的残留磁通密度和矩形比等磁特性方面是优异的 。
-
公开(公告)号:US4770941A
公开(公告)日:1988-09-13
申请号:US946518
申请日:1986-12-24
申请人: Kyoiti Imai , Masahiko Ikka
发明人: Kyoiti Imai , Masahiko Ikka
IPC分类号: G11B5/702
CPC分类号: G11B5/7023 , Y10S428/90 , Y10T428/31504 , Y10T428/31511 , Y10T428/31935
摘要: The invention provides a magnetic coating composition capable of giving a magnetic recording medium having improved properties in respect of the dispersibility of the ferromagnetic particles in the vehicle resin and the surface properties of the magnetic recording medium coated therewith. The inventive magnetic coating composition is characteristic in the use of a specific vehicle resin having a polymeric molecular structure composed of the monomeric units of vinyl chloride, vinyl alcohol, amine-modified vinyl and, optionally, vinyl carboxylate and epoxy-containing a monomer in specified proportions.
摘要翻译: 本发明提供一种磁性涂料组合物,其能够提供具有改进的关于铁磁颗粒在载体树脂中的分散性和涂覆的磁记录介质的表面性能的磁记录介质。 本发明的磁性涂料组合物在使用具有聚合物分子结构的特定载体树脂的特征在于,其具有由指定的氯乙烯,乙烯醇,胺改性的乙烯基和任选的羧酸乙烯酯和含环氧基的单体的单体单元组成的聚合物分子结构 比例。
-
-
-
-
-