Invention Grant
US07438976B2 Nano-talc powders of high specific surface area obtained by hybrid milling 失效
通过混合研磨得到高比表面积的纳米滑石粉

  • Patent Title: Nano-talc powders of high specific surface area obtained by hybrid milling
  • Patent Title (中): 通过混合研磨得到高比表面积的纳米滑石粉
  • Application No.: US10890852
    Application Date: 2004-07-14
  • Publication No.: US07438976B2
    Publication Date: 2008-10-21
  • Inventor: Jianhong HeChristopher Dunn
  • Applicant: Jianhong HeChristopher Dunn
  • Applicant Address: US PA Pittsburgh
  • Assignee: NGX, Inc.
  • Current Assignee: NGX, Inc.
  • Current Assignee Address: US PA Pittsburgh
  • Agent Debra M. Parrish, PC
  • Main IPC: B32B5/10
  • IPC: B32B5/10
Nano-talc powders of high specific surface area obtained by hybrid milling
Abstract:
The invention provides high surface area talc compositions by a novel hybrid milling method or soaking method. The hybrid milling method comprises dry milling talc powder followed by mixing with water and wet milling to provide a nano-talc slurry with high surface area, also of the invention. The soaking method comprises dry milling talc powder followed by mixing with water and soaking the powder for a period of time to provide high surface area nano-talc slurry, also of the invention. The slurry may be dewatered and dried to provide dry nano-talc powder. The nano-talc powder provided by the invention is a novel hydrophilic talc composition also of the invention.
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