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. 发明授权

US5258201A Method of forming a partial coating on phosphor particles by coating the phosphors in a fluidize bed for a limited time and subsequently annealing to promote ionic diffusion 失效
标题翻译：在荧光体颗粒上形成部分涂层的方法是通过在流化床中涂布荧光体有限的时间并随后进行退火以促进离子扩散
公开(公告)号：US5258201A
公开(公告)日：1993-11-02
申请号：US949374
申请日：1992-09-23
申请人： Robin W. Munn , Dale E. Benjamin , Deborah V. Lutz
发明人： Robin W. Munn , Dale E. Benjamin , Deborah V. Lutz
IPC分类号： C09K11/02 , B05D5/06
CPC分类号： C09K11/025
摘要： A method of forming a partial protective coating on phosphor particles to improve initial power output and maintenance of fluorescent lamps made with the phosphor. The phosphor particles are fluidized in a bed and at least partially enveloped by a coating precursor material. Residence time of the phosphor particles in the fluidized bed is short so that the phosphor particles are only partially coated with the coating precursor material. The coating precursor material is reacted to form a protective coating over at least a portion of the surface of the phosphor particles. The partially-coated phosphor particles are then annealed to cause the protective coating to selectively cover at least a portion of certain sites on the surface of the phosphor particles.
摘要翻译：在磷光体颗粒上形成部分保护涂层的方法，以提高由荧光体制成的荧光灯的初始功率输出和维护。磷光体颗粒在床中流化并且至少部分地被涂覆前体材料包封。荧光体颗粒在流化床中的停留时间短，使得荧光体颗粒仅被涂覆前体材料部分涂覆。反应涂层前体材料以在荧光体颗粒表面的至少一部分上形成保护涂层。然后将部分涂覆的荧光体颗粒退火以使保护涂层选择性地覆盖荧光体颗粒表面上的某些部位的至少一部分。

2. 发明授权

US4915976A Procedure for controlling powder fluidity 失效
标题翻译：控制粉末流动性的程序
公开(公告)号：US4915976A
公开(公告)日：1990-04-10
申请号：US279611
申请日：1988-12-05
申请人： Doris L. Brown , Charles F. Chenot , Deborah V. Lutz , Robin W. Munn
发明人： Doris L. Brown , Charles F. Chenot , Deborah V. Lutz , Robin W. Munn
IPC分类号： B01J8/00 , B01J8/24
CPC分类号： B01J8/1809 , B01J8/008 , B01J2208/0061
摘要： A process is disclosed for applying a lubricant to a powdered material to control the fluidity of the powdered material. In the process one first obtains at least x number of samples of the powdered material without lubricant. Thereafter, increasing amounts of lubricant are applied to x-1 number of the samples. The bulk and tap densities of the samples are then measured and the Hausner ratio from the densities is calculated. The Hausner ratio versus the concentration of the lubricant in the powder samples is plotted and the concentrations of the minima lubricant in the powder samples at the point of the plot obtained in step e are determined. The concentration of lubricant determined in step f is applied to the remainder of the powdered material whereby an operational level of fluidity of the powder is achieved.
摘要翻译：公开了一种将润滑剂施加到粉末材料以控制粉末材料的流动性的方法。在该过程中，首先获得至少x个样品的粉末材料，而不需要润滑剂。此后，将增加量的润滑剂施加到x-1个样品。然后测量样品的体积和抽头密度，并计算来自密度的Hausner比。绘制Hausner比与粉末样品中润滑剂浓度的关系，并确定在步骤e中获得的图中点处的粉末样品中最小润滑剂的浓度。在步骤f中确定的润滑剂的浓度被施加到粉末材料的其余部分，由此实现粉末的流动性的操作水平。

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