公开(公告)号：JP2008037995A

公开(公告)日：2008-02-21

申请号：JP2006213120

申请日：2006-08-04

Applicant: Tayca Corp ,  テイカ株式会社

Inventor： KITANO KOJI

IPC: C09D17/00 ,  C09C1/00 ,  C09C1/04 ,  C09C1/28 ,  C09C1/36 ,  C09C3/12 ,  C09D7/12 ,  C09D201/00

Abstract: PROBLEM TO BE SOLVED: To provide a highly dispersed solid-liquid dispersion which enhances the dispersibility of inorganic powder in organic solvents without adding a dispersant. SOLUTION: This solid-liquid dispersion comprises an organic solvent and inorganic powder whose surface is treated with two kinds of silane coupling agents comprising a silane coupling agent having fluorine atoms in the molecule and a silane coupling agent having a silicon-nitrogen bond in the molecule. The mass ratio of the silane coupling agent having the fluorine atoms in the molecule to the silane coupling agent having the silicon-nitrogen bond in the molecule is preferably 70:30 to 30:70. The inorganic powder is preferably fine particulate titanium dioxide or fine particulate zinc oxide having an average primary particle diameter of 5 to 200 nm. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供高分散的固体 - 液体分散体，其增加了无机粉末在有机溶剂中的分散性，而不添加分散剂。 解决方案：该固体 - 液体分散体包括有机溶剂和无机粉末，其表面用两种含有分子中具有氟原子的硅烷偶联剂的硅烷偶联剂和具有硅 - 氮键的硅烷偶联剂处理 在分子中。 分子中具有氟原子的硅烷偶联剂与分子中具有硅 - 氮键的硅烷偶联剂的质量比优选为70:30〜30:70。 无机粉末优选为平均一次粒径为5〜200nm的细颗粒二氧化钛或细粒状氧化锌。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2010090001A

公开(公告)日：2010-04-22

申请号：JP2008262425

申请日：2008-10-09

Applicant: Tayca Corp ,  テイカ株式会社

Inventor： KITANO KOJI ,  ASAKURA TAKASHI

IPC: C01G29/00 ,  C09D1/00 ,  C09D5/33 ,  C09D7/12 ,  C09D183/02 ,  C09K3/00

Abstract: PROBLEM TO BE SOLVED: To provide a UV ray shielding dispersion and a UV ray shielding coating composition having high transmissivity to visible light and excellent shielding performance particularly against long-wavelength UV rays. SOLUTION: Monoclinic particulate bismuth oxides having an average primary particle diameter of 10 to 100 nm are produced by adding an acidic aqueous solution of bismuth and an alkali hydroxide aqueous solution to water, hydrolyzing the bismuth in the solution while keeping the pH to 9.5 to 11.5, subjecting the produced precipitate to filtration, rinsing with water, drying and firing to obtain monoclinic bismuth oxide, and performing wet pulverizing to the obtained monoclinic bismuth oxide in the presence of a solvent and a dispersion medium. The UV ray shielding dispersion is produced by incorporating the bismuth oxide, wherein a thin film formed of the dispersion having a dry film thickness of 1 to 4 μm shows a transmittance of not more than 20% at a wavelength from 250 to 400 nm and a transmittance of not less than 70% at a wavelength from 450 to 800 nm. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供对可见光具有高透射率和优异的屏蔽性能的紫外线屏蔽分散体和紫外线屏蔽涂料组合物，特别是针对长波长紫外线。 解决方案：平均一次粒径为10〜100nm的单斜晶粒状铋氧化物是通过将铋和碱金属氢氧化物水溶液的酸性水溶液加入到水中而制成的，水溶液中的铋同时保持pH值 将所得沉淀物过滤，用水冲洗，干燥和烧制，得到单斜晶氧化铋，并在溶剂和分散介质存在下，对得到的单斜晶氧化铋进行湿式粉碎。 通过掺入氧化铋来制造紫外线屏蔽分散体，其中由干膜厚度为1〜4μm的分散体形成的薄膜在250〜400nm的波长下显示出不大于20％的透射率， 在450〜800nm的波长下透光率不低于70％。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010090002A

公开(公告)日：2010-04-22

申请号：JP2008262429

申请日：2008-10-09

Applicant: Tayca Corp ,  テイカ株式会社

Inventor： KITANO KOJI ,  ASAKURA TAKASHI

IPC: C01G29/00 ,  C09D1/00 ,  C09D5/33 ,  C09D7/12 ,  C09D201/00 ,  C09K3/00

Abstract: PROBLEM TO BE SOLVED: To provide monoclinic particulate bismuth oxide having high transmissivity (transparency) to visible light and a shielding performance against long-wavelength UV rays (near UV rays), which is suitable to be used as a UV ray shielding agent, and to provide a UV ray shielding dispersion utilizing the above characteristics. SOLUTION: Monoclinic particulate bismuth oxide having an average primary particle diameter of 10 nm to 100 nm are produced by adding an acidic aqueous solution of bismuth and an alkali hydroxide aqueous solution to water, hydrolyzing the bismuth in the solution while keeping the pH to 9.5 to 11.5, subjecting the produced precipitate to filtration, rinsing with water, drying and firing to obtain monoclinic bismuth oxide, and performing wet pulverizing to the obtained monoclinic bismuth oxide in the presence of a solvent and a dispersion medium. The UV ray shielding dispersion is produced by incorporating the monoclinic particulate bismuth oxide having an average primary particle diameter of 10 to 100 nm. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供对可见光具有高透射率（透明度）的单斜晶粒状铋氧化物和适合用作紫外线屏蔽的长波长紫外线（近紫外线）的屏蔽性能 并提供利用上述特征的紫外线屏蔽分散体。 解决方案：平均一次粒径为10nm至100nm的单斜晶粒状铋氧化物通过将铋和碱金属氢氧化物水溶液的酸性水溶液加入到水中来生产，水溶液中的铋同时保持pH 将所得沉淀物过滤，用水冲洗，干燥和焙烧，得到单斜晶氧化铋，并在溶剂和分散介质的存在下，对得到的单斜晶氧化铋进行湿式粉碎。 紫外线屏蔽分散体通过掺入平均一次粒径为10〜100nm的单斜晶粒状铋氧化物而制造。 版权所有（C）2010，JPO＆INPIT