发明授权
US5698315A Electrically-conductive colorless transparent barium sulfate filler 失效
导电无色透明硫酸钡填料

Electrically-conductive colorless transparent barium sulfate filler
摘要:
A electrically-conductive barium sulfate filler and a method for preparing same are herein disclosed and it comprises a particulate core material composed of barium sulfate provided thereon with a coating film of tin dioxide which may be optionally doped with niobium or tentalum, the bare core material free of coating film having a specific surface area ranging from 0.1 to 150 m.sup.2 /g and the film having a thickness ranging from 2 to 80 nm.
公开/授权文献
信息查询
0/0