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

US3669896A Inorganic white pigments containing optical brighteners and process for their manufacture 失效
标题翻译：含有光学增亮剂的无机白色及其制造方法
公开(公告)号：US3669896A
公开(公告)日：1972-06-13
申请号：US3669896D
申请日：1969-12-02
申请人： CIBA GEIGY AG
发明人： PREININGER ERICH , GING DIETER
IPC分类号： C08K13/02 , C09C1/06 , C09C1/36 , C09C3/00 , D21H17/69 , C09K1/02
CPC分类号： D21H17/69 , C01P2002/52 , C08K13/02 , C09C1/06 , C09C1/3661 , C09C3/006 , C09C3/063 , C09C3/08
摘要： The invention concerns a process for the manufacture of inorganic white pigments containing optical brighteners, characterized in that, in an aqueous suspension of an inorganic white pigment which contains a dispersion of at least one optical brightener which is sparingly soluble in water, dispersed by means of non-ionic surface-active agents, property-improving auxiliary substances for such pigments are precipitated or adsorbed on these pigments in a manner which is in itself known by admixing the property-improving auxiliary or admixing the components for the formation of such a property-improving auxiliary if several components for its formation are necessary, and the pigments treated in such manner are separated from the aqueous phase, washed and dried. The invention provides a valuable method for homogeneously distributing optical brightening agents in combination with white pigments in plastics.
摘要翻译：本发明涉及一种制造含有荧光增白剂的无机白色颜料的方法，其特征在于在无机白色颜料的水性悬浮液中，其含有至少一种微溶于水的荧光增白剂的分散体，其通过以下方式分散：非离子表面活性剂，用于这些颜料的性能改进助剂为这些颜料的沉淀或吸附，其本身是通过混合改性助剂或混合用于形成这种性能的助剂，如果需要形成几种成分，则改善助剂，并且以这种方式处理的颜料与水相分离，洗涤并干燥。本发明提供了将荧光增白剂与塑料中的白色颜料组合均匀分布的有价值的方法。

IPRDB

热门服务

关于我们

友情链接

联系方式