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
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Application No.: US10890852Application Date: 2004-07-14
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Publication No.: US07438976B2Publication Date: 2008-10-21
- Inventor: Jianhong He , Christopher Dunn
- Applicant: Jianhong He , Christopher 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

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.
Public/Granted literature
- US20040241442A1 Methods of providing nano-talc powders Public/Granted day:2004-12-02
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