公开(公告)号：US5607772A

公开(公告)日：1997-03-04

申请号：US401705

申请日：1995-03-10

申请人： Masahiro Yamakawa ,  Kenji Akimoto ,  Katsuya Nakamura ,  Fumio Takano ,  Takahiro Takasaki

发明人： Masahiro Yamakawa ,  Kenji Akimoto ,  Katsuya Nakamura ,  Fumio Takano ,  Takahiro Takasaki

IPC分类号： C08G18/08 ,  C08G18/10 ,  C08G18/86 ,  G11B5/702

CPC分类号： G11B5/7022 ,  C08G18/0804 ,  C08G18/10 ,  C08G18/86 ,  G11B5/7021 ,  Y10S428/90 ,  Y10T428/31609 ,  Y10T428/31935 ,  Y10T428/31938

摘要： A binder for coating materials containing dispersed inorganic powder comprises a polyurethane resin containing (a) 2.2 to 7.0 terminal epoxy groups in one molecule in average and (b) 0.1 to 5.0% by weight as SO.sub.3 -- of a sulfonic acid salt group, 0.05 to 3.0% by weight as COO-- of a carboxylic acid salt group, or 0.02 to 1.0% by weight as N.sup.+ of a quaternary ammonium salt group in the molecule, and having a number-average molecular weight of 2,000 to 10,000. A coating material containing dispersed inorganic powder and a magnetic recording medium both use this binder. In a recording medium comprising a magnetic layer placed on a non-magnetic substrate, the magnetic layer comprises polyurethane resin (A) as a binder, vinyl chloride polymer (B) containing 0.1 to 20% by weight of epoxy group and having an average degree of polymerization of 100 to 500, as another binder, (C) an alicylic acid anhydride as a crosslinking agent, and (E) a tertiary amine as a catalyst, and at least one of the binders is crosslinked between the epoxy groups therein by the reaction in which components (C) and (E) take part. The coating material containing fine inorganic powder dispersed with stability and having a low viscosity can be obtained by using, as the binder, the polyurethane resin having terminal epoxy groups and one of a sulfonic acid salt group, a carboxylic acid salt group, and a quaternary ammonium salt group. The magnetic recording material prepared by using magnetic powder as the inorganic powder and crosslinking the binder is excellent in dispersion of the magnetic powder and smoothness of the surface. Therefore, the magnetic recording medium is excellent in magnetic properties, durability, and running properties.

摘要翻译： 含有分散无机粉末的涂料用粘合剂包含：（a）平均一分子中具有2.2〜7.0个末端环氧基的聚氨酯树脂，（b）0.1〜5.0重量％的磺酸盐基的SO 3，0.05〜 3.0重量％，作为羧酸盐基团的COO-，或作为分子中N +的季铵盐基团的0.02〜1.0重量％，数均分子量为2,000〜10000。 含有分散无机粉末和磁记录介质的涂料均使用该粘合剂。 在包含放置在非磁性基板上的磁性层的记录介质中，磁性层包含作为粘合剂的聚氨酯树脂（A），含有0.1-20重量％环氧基的氯乙烯聚合物（B），平均度 的聚合作为另一种粘合剂，（C）作为交联剂的丙烯酸酐，和（E）叔胺作为催化剂，并且至少一种粘合剂在其中的环氧基之间交联，由 组分（C）和（E）组成的反应。 通过使用具有末端环氧基和磺酸盐基团，羧酸盐基团和季铵盐之一的聚氨酯树脂作为粘合剂，可以获得稳定地分散且具有低粘度的无机细粉末的涂料 铵盐基团。 通过使用磁性粉末作为无机粉末并使粘合剂交联而制备的磁记录材料具有优异的磁性粉末分散性和表面平滑性。 因此，磁记录介质的磁特性，耐久性和运行性都优异。

公开(公告)号：US06204083B1

公开(公告)日：2001-03-20

申请号：US09000407

申请日：1998-01-29

申请人： Setsuo Kodato ,  Seishiro Ohya ,  Shiro Karasawa ,  Hiroyasu Yuasa ,  Kenji Akimoto

发明人： Setsuo Kodato ,  Seishiro Ohya ,  Shiro Karasawa ,  Hiroyasu Yuasa ,  Kenji Akimoto

IPC分类号： H01L2100

CPC分类号： H05B3/10 ,  G01J3/108 ,  H05B3/0047 ,  H05B2203/032

摘要： In order, to manufacture a high-performance infrared-emitting element having high-speed thermal response characteristics and a high infrared emissivity, a bridge (heat-generating) portion having a separation space is formed on a silicon element substrate. The bridge portion is formed to have a thickness of 5 &mgr;m or less by doping boron as an impurity by ion implantation with a concentration distribution peak value of 1.5×1019 atoms/cm3 or more, and performing annealing under predetermined conditions for activating the impurity layer. In the infrared-emitting element manufactured in this manner, even if the bridge portion is made thin to improve the thermal response characteristics, the infrared emissivity does not decrease because of a high impurity concentration, and a large temperature modulation width can be obtained. In doping boron as the impurity by ion implantation, the dose is preferably set to 3.0×1014 ions/cm2 or more. To activate the impurity layer upon doping boron, the annealing is performed in the nitrogen gas atmosphere at a temperature of 1,100° C. to 1,200° C. for 5 min to 40 min and further in the wet oxygen atmosphere for about 25 min to 40 min. As a result, the doping concentration of boron by ion implantation and the activation of the impurity layer can be stably increased and enhanced.

摘要翻译： 为了制造具有高速热响应特性和高红外发射率的高性能红外发射元件，在硅元件基板上形成具有分离空间的桥（发热）部分。 通过以1.5×10 19原子/ cm 3以上的浓度分布峰值进行离子注入，通过掺杂硼作为杂质，形成5μm以下的厚度，并且在用于活化杂质层的规定条件下进行退火。 在以这种方式制造的红外线发射元件中，即使为了提高热响应特性使桥接部分变薄，由于杂质浓度高，红外线发射率也不会降低，并且可以获得大的温度调制宽度。 在通过离子注入掺杂硼作为杂质时，剂量优选设定为3.0×1014离子/ cm 2以上。 为了在掺杂硼时激活杂质层，退火在氮气气氛中在1100℃至1200℃的温度下进行5分钟至40分钟，并且在湿氧气氛中进一步在25分钟至40℃ 分钟 结果，可以稳定地提高和提高通过离子注入的硼的掺杂浓度和杂质层的活化。

公开(公告)号：US5316862A

公开(公告)日：1994-05-31

申请号：US833714

申请日：1992-02-11

申请人： Tamotsu Yamamoto ,  Kenji Akimoto

发明人： Tamotsu Yamamoto ,  Kenji Akimoto

IPC分类号： C08F8/36 ,  C08K3/10 ,  C08K3/22 ,  C08L27/06 ,  C08L27/22 ,  C09D5/23 ,  G11B5/702 ,  G11B5/00

CPC分类号： G11B5/7023 ,  Y10S428/90 ,  Y10T428/31935

摘要： The present invention provides a magnetic recording medium comprising a non-magnetic substrate and a magnetic layer formed on a substrate, comprising (a) a binder containing a vinyl chloride resin having sulfoxide groups and (b) a magnetic powder dispersed in the binder (a); and a binder used in said medium for dispersion of magnetic powder, containing a vinyl chloride resin containing sulfoxide groups. The present invention further provides a process for producing said vinyl chloride resin (a binder resin) having sulfoxide groups. The use of the binder resin of the present invention makes it possible to obtain a magnetic coating in which a fine magnetic powder is dispersed stably and which has good coatability. The magnetic recording medium obtained using the magnetic coating has good surface smoothness and good surface durability and is excellent in travelling, magnetic property and electromagnetic conversion property.

摘要翻译： 本发明提供一种包含非磁性基底和形成在基底上的磁性层的磁记录介质，包括（a）含有具有亚砜基的氯乙烯树脂的粘合剂和（b）分散在粘合剂中的磁粉（a ）; 和用于所述磁粉分散介质的粘合剂，其含有含有亚砜基团的氯乙烯树脂。 本发明还提供一种制备具有亚砜基的所述氯乙烯树脂（粘合剂树脂）的方法。 通过使用本发明的粘合剂树脂，可以获得稳定分散有微细磁性粉末并具有良好涂布性的磁性涂层。 使用磁性涂膜获得的磁记录介质具有良好的表面光滑度和良好的表面耐久性，并且行进，磁性和电磁转换性都优异。