• 专利标题:   Polishing powder useful for fine polishing of electronic display screen comprises modified cerium oxide, lubricating particles, and samarium oxide.
  • 专利号:   CN112778972-A
  • 发明人:   LI J, HUANG G, YANG H
  • 专利权人:   ANHUI HECHEN NEW MATERIALS CO LTD
  • 国际专利分类:   C09G001/02, C09K003/14
  • 专利详细信息:   CN112778972-A 11 May 2021 C09K-003/14 202153 Pages: 11 Chinese
  • 申请详细信息:   CN112778972-A CN10259827 10 Mar 2021
  • 优先权号:   CN10259827

▎ 摘  要

NOVELTY - Polishing powder comprises 50-80% modified cerium oxide, 10% lubricating particles, and 10-40% samarium oxide. The polishing powder is prepared by adding modified cerium oxide, lubricating particles, and samarium oxide into a mixing tank and uniformly mixing, crushing and classifying, and controlling particle size D50 to 0.5-5 mu m, and D100 to 2-25 mu m. USE - The polishing powder is useful for fine polishing of electronic display screen. ADVANTAGE - The powder has high stability; the modified cerium oxide has amphiphilic properties, good compatibility and suspension in aqueous or organic solvents; the lubricating particles have good bearing capacity, can greatly reduce the actual relative friction area, achieve the purpose of wear resistance, and improve the polishing quality with a small addition amount. The method can prevent the polishing powder from over-polishing the polishing material and improve the polishing accuracy. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for production method of polishing powder, prepared as mentioned above.