公开(公告)号：US06228160B1

公开(公告)日：2001-05-08

申请号：US09241409

申请日：1999-02-02

申请人： Jurgen Hanich ,  Gillian-Ann Jaschik ,  Jörg Wacker ,  Giacinto Monari

发明人： Jurgen Hanich ,  Gillian-Ann Jaschik ,  Jörg Wacker ,  Giacinto Monari

IPC分类号： C09C122

CPC分类号： C03C1/04 ,  C01P2002/02 ,  C01P2004/80 ,  C01P2006/12 ,  C04B33/14 ,  C09C1/0009 ,  C09C1/0081 ,  C09C1/24

摘要： The invention provides new stains which fire to a red-brown color for coloring ceramic compositions. The stains comprise Fe2O3 and/or an Fe compound which forms Fe2O3 on firing, in uniform distribution in a pulverulent matrix based on an oxide-like and/or silicate-like material which is amorphous to X-rays to the extent of at least 50% and has a specific surface area (BET) of at least 40 m2/g, and are obtainable by bringing the constituents into intensive contact together. The matrix preferably comprises 80 to 100% amorphous SiO2 or SiO2-rich silicate with a BET surface area of 90 to 300 m2/g and 0 to 20% of an auxiliary substance, such as silicone oil. The stains can be prepared by intensive dry grinding.

摘要翻译： 本发明提供了新的污渍，其以红棕色的颜色着火以着色陶瓷组合物。 该污渍包含Fe 2 O 3和/或在焙烧时形成Fe 2 O 3的Fe化合物，其均匀分布在基于氧化物样和/或硅酸盐样材料的粉状基质中，X射线无定形至至少50 并且具有至少40m 2 / g的比表面积（BET），并且可以通过使组分紧密接触在一起而获得。 该基体优选包含具有90至300m 2 / g的BET表面积和0至20％辅助物质如硅油的80至100％无定形SiO 2或SiO 2富硅酸盐。 污渍可以通过强力干磨来制备。