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Particule primaire revêtue d'un agent colorant
专利权人:
IVOCLAR VIVADENT AG
发明人:
APEL, ELKE,RITZBERGER, CHRISTIAN,HOELAND, WOLFRAM,APPERT, CHRISTOPH,WACHTER, WOLFGANG,RHEINBERGER, VOLKER
申请号:
EP08161501.5
公开号:
EP2157067B1
申请日:
2008.07.30
申请国别(地区):
EP
年份:
2012
代理人:
摘要:
Primary particles of oxide-ceramic material have an average particle size of 10-1000 nm, and are coated with a chromophoric component. Independent claims are included for: (1) a process of preparing the primary particles, comprising dispersing an oxide-ceramic material in a solvent to form a suspension; and adding a chromophoric component to the obtained suspension; (2) a granular material comprising an oxide-ceramic material, which comprises the primary particles; (3) a process of preparing the granular material, comprising the dispersing and adding steps of the process of preparing the primary particles; and drying and granulating the suspension; (4) a suspension based on oxide-ceramic material, comprising (wt.%) the primary particles (10-95); and organic component (5-90), in each case relative to the overall mass of the suspension; and (5) a process of preparing ceramic moldings, comprising preparing a green body by curing the suspension by local introduction of radiation energy with formation of a geometric shape of the green body; subjecting the green body to a heat treatment to remove a binder, to obtain a white body; and sintering the white body.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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