发明申请
WO02059056A3 COATED BARIUM TITANATE-BASED PARTICLES AND PROCESS FOR THE PRODUCTION THEREOF
审中-公开
基本信息:
- 专利标题： COATED BARIUM TITANATE-BASED PARTICLES AND PROCESS FOR THE PRODUCTION THEREOF
- 专利标题（中）：涂覆的基于钛酸钡的颗粒及其生产方法
- 申请号：PCT/US0150570 申请日：2001-12-21
- 公开(公告)号：WO02059056A3 公开(公告)日：2002-10-03
- 发明人： VENIGALLA SRIDHAR , THRUSH KATHLEEN A
- 申请人： CABOT CORP
- 专利权人： CABOT CORP
- 当前专利权人： CABOT CORP
- 优先权： US75810101 2001-01-10
- 主分类号： C04B35/46
- IPC分类号： C04B35/46 ; C01G23/00 ; C04B35/468 ; C04B35/628
摘要：
Coated barium titanate-based particles and a process to coat the particles are provided. The coating includes a dopant metal compound that is insoluble in water under alkaline conditions. The dopant metal in the coating is selected from the group of metals which form oxides or hydroxides that are soluble in water under alkaline conditions such as tungsten, molybdenum, vanadium, and chromium. The process involves precipitating the insoluble compound from an aqueous medium as a coating on surfaces of barium titanate-based particles. The coated barium titanate-based particles may be further processed, for example, to form dielectric materials which may be used in many electronic applications such as in MLCCs applications.
摘要（中）：
提供涂覆的钛酸钡基颗粒和涂覆颗粒的方法。 涂层包括在碱性条件下不溶于水的掺杂剂金属化合物。 涂层中的掺杂剂金属选自在碱性条件下如钨，钼，钒和铬可溶于水的氧化物或氢氧化物的金属组。 该方法包括从水性介质中沉淀出不溶性化合物作为钛酸钡基颗粒表面上的涂层。 涂覆的钛酸钡基颗粒可以进一步加工，例如，以形成可用于诸如MLCC应用中的许多电子应用中的电介质材料。