专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2009210704A Optical waveguide and method of manufacturing the same 审中-公开
标题翻译：光波导及其制造方法
公开(公告)号：JP2009210704A
公开(公告)日：2009-09-17
申请号：JP2008052007
申请日：2008-03-03
申请人： Nissan Chem Ind Ltd , 日産化学工業株式会社
发明人： SATO TETSUO , NAWATA HIDEYUKI , YOSHIMURA TETSUZO
IPC分类号： G02B6/13 , C08G79/00 , G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide an optical waveguide that is inexpensive with an easy manufacturing process, has a large refractive index difference between a core part and a clad part, and has a small bend radius suitable for a small integrated circuit, and to provide a method of manufacturing the same. SOLUTION: The method of manufacturing the optical waveguide includes the following steps (A) and (B). In the step (A), a coating film is formed on a lower clad part by using a coating liquid that contains an oxide precursor containing titanium atoms and silicon atoms, and in a step (B), the coating film is irradiated with radiation, and subsequently heat treated to form a core/clad layer having a core area having a high refractive index irradiated with the radiation and a clad area not irradiated with radiation and having a lower refractive index than the core area. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种便于制造工艺便宜的光波导，在芯部和包层部之间具有大的折射率差，并且具有适合于小集成电路的小弯曲半径，并提供其制造方法。解决方案：制造光波导的方法包括以下步骤（A）和（B）。在工序（A）中，通过使用包含含有钛原子和硅原子的氧化物前体的涂布液，在下包层部上形成涂膜，在工序（B）中，对涂膜照射辐射，然后进行热处理，以形成芯辐射照射的具有高折射率的核心区域的核心/包层，以及没有照射辐射并具有比核心区域低的折射率的包层区域。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2005105019A Alicyclic spiro polyimide 有权
标题翻译： ALICYCLIC SPIRO POLYIMIDE
公开(公告)号：JP2005105019A
公开(公告)日：2005-04-21
申请号：JP2003336860
申请日：2003-09-29
申请人： Nissan Chem Ind Ltd , 日産化学工業株式会社
发明人： SUZUKI HIDEO , NAWATA HIDEYUKI
IPC分类号： C08G73/10
摘要： PROBLEM TO BE SOLVED: To provide a polyimide which is expected to be used as a protective material in a liquid crystal display element or a semiconductor, an electronic material such as an insulating material, and an optical communication material such as an optical waveguide, does not absorb ultraviolet rays, and has a high light transmittance, an excellent solvent solubility, and an improved processibility.
SOLUTION: A polyamic acid containing at least 10 mol% repeating units represented by formula [1] (wherein R
1 is a divalent organic group; and m is an integer) and having a number-average mol. wt. of 5,000 or higher is provided. The polyimide provided contains at least 10 mol% repeating units represented by formula [2] (wherein R
1 is a divalent organic group; and m is an integer).
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供预期用作液晶显示元件或半导体中的保护材料的聚酰亚胺，诸如绝缘材料的电子材料和诸如光学的光学通信材料波导，不吸收紫外线，透光性高，溶剂溶解性优异，加工性提高。解决方案：含有至少10mol％由式[1]表示的重复单元的聚酰胺酸（其中R 1 是二价有机基团，m是整数）平均摩尔。重量。提供5,000或更高。所提供的聚酰亚胺含有至少10mol％的由式[2]表示的重复单元（其中R 1是二价有机基团，m是整数）。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2005170818A Alicyclic tetracaboxylic acid dianhydride, its production method and polyimide 有权
标题翻译：二烷基四羧酸二异氰酸酯，其生产方法和聚酰亚胺
公开(公告)号：JP2005170818A
公开(公告)日：2005-06-30
申请号：JP2003411126
申请日：2003-12-10
申请人： Nissan Chem Ind Ltd , 日産化学工業株式会社
发明人： SUZUKI HIDEO , NAWATA HIDEYUKI
IPC分类号： G02B6/12 , C07B61/00 , C07C61/135 , C07D307/93 , C07D493/04 , C08G73/10 , G02B5/20 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To provide an alicyclic tetracarboxylic acid dianhydride capable of being used as a raw material monomer for polyimides which do not absorb UV rays in the UV ray region, have high light transmissivity, improved processability and excellent solubility in solvents, and is used for optical materials such as liquid crystal orientation films, color filters and optical communication optical wave-guiding paths, to provide its production method, and to provide its polyimide. SOLUTION: A (substituted) tricyclo[4.2.1.0 2,5 ]nonane-3-endo, 4-endo, 7-endo, 8-endo-tetracarboxylic acid-3:4, 7:8-dianhydride represented by formula [1] [R 1 and R 2 are each independently H or a 1 to 10C alkyl; R 4 is a divalent organic group; (m) is an integer]. A tricyclo[4.2.1.0 2,5 ]nonane compound as an intermediate for producing the above compound. A polyamic acid and a polyimide each derived from the compounds. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供能够用作在紫外线区域不吸收紫外线的聚酰亚胺的原料单体的脂环族四羧酸二酐，具有高的透光性，改善的加工性和在溶剂中的优异的溶解性并且用于液晶取向膜，滤色器和光通信光波导路径等光学材料，以提供其制造方法，并提供其聚酰亚胺。解决方案：将取代的三环[4.2.1.0 2,5]壬烷-3-内，4-内端，7-内端，8-内 - 四羧酸-3:4，由式[1]表示的7：8-二酐各自独立地为H或1〜10个碳原子的烷基; R 1，R 2， R 4 是二价有机基团; （m）为整数]。作为制备上述化合物的中间体的三环[4.2.1.0＆lt; SP＆gt; 2,5＆lt; SP＆gt;]壬烷化合物。聚酰胺酸和聚酰亚胺各自衍生自化合物。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004182658A Method for manufacturing alicyclic tetracarboxylic acid 有权
公开(公告)号：JP2004182658A
公开(公告)日：2004-07-02
申请号：JP2002352144
申请日：2002-12-04
申请人： Nissan Chem Ind Ltd , 日産化学工業株式会社
发明人： SUZUKI HIDEO , TSUJI SHINSUKE , NAWATA HIDEYUKI
IPC分类号： C07C51/23 , C07C51/31 , C07C51/43 , C07C61/06
摘要： PROBLEM TO BE SOLVED: To provide an industrial manufacturing method which permits ready management of temperature control by improving reaction conditions into milder ones, increases the yield of the aimed product as the result of suppression of by-products, decreases by-produced NO
2 gas generation, and causes no contamination with impurity metals in the aimed product.
SOLUTION: The method for manufacturing 1,2,4-tricarboxy-3-carboxymethylcyclopentane (TCMP) represented by formula [2] comprises oxidizing a hydroxydicyclopentadiene represented by formula [1] by nitric acid in the absence of a catalyst in the presence of a solvent (for example, 1,2-dichloroethane and the like).
COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2004163724A Novel liquid crystal aligning agent 有权
公开(公告)号：JP2004163724A
公开(公告)日：2004-06-10
申请号：JP2002330524
申请日：2002-11-14
申请人： Nissan Chem Ind Ltd , 日産化学工業株式会社
发明人： TSUJI SHINSUKE , NAWATA HIDEYUKI
IPC分类号： G02F1/1337 , C08G73/10
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal aligning agent to obtain a liquid crystal alignment layer showing high voltage holding characteristics even at high temperature, stable voltage holding characteristics without depending on the imidization rate, and high voltage holding characteristics even when the imidization rate is low.
SOLUTION: The liquid crystal aligning agent contains at least one kind of polymer selected from polyamide acids or polyimide prepared by dehydrating and closing a ring of polyamide acids which are produced by making a group of tetracarboxylic acid dianhydrides containing at least ≥1mol% of tetracarboxylic acid dianhydrides having a skeleton expressed by formula (1) or their derivatives, wherein n represents 0 or an integer of 1 to 4, react with a group of diamine compounds.
COPYRIGHT: (C)2004,JPO

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式