发明授权
- 专利标题： Surface treated barium sulfate and method of preparing the same
- 专利标题（中）： 表面处理硫酸钡及其制备方法
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申请号： US09288903申请日： 1999-04-09
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公开(公告)号： US06194070B1公开(公告)日： 2001-02-27
- 发明人: Thomas J. Lynch , Gary M. Freeman , Christina D. Prowell , Dwayne E. Outlaw
- 申请人： Thomas J. Lynch , Gary M. Freeman , Christina D. Prowell , Dwayne E. Outlaw
- 主分类号： B32B500
- IPC分类号： B32B500
摘要：
A method of preparing a surface treated barium sulfate product is disclosed which has improved dispersibility in end use applications such as polymeric formulations. The method includes mixing a silicon-hydride containing polysiloxane, in neat or in aqueous emulsion form, with a quantity of barium sulfate particles and then optionally drying the resultant mixture. The silicon-hydride containing polysiloxane is deposited on and chemically bonded to the surface of the barium sulfate particles.