Invention Grant
- Patent Title: Surface-modified silicas
- Patent Title (中): 表面改性二氧化硅
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Application No.: US12441992Application Date: 2007-09-11
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Publication No.: US07972431B2Publication Date: 2011-07-05
- Inventor: Juergen Meyer , Mario Scholz , Kai Schumacher
- Applicant: Juergen Meyer , Mario Scholz , Kai Schumacher
- Applicant Address: DE Essen
- Assignee: Evonik Degussa GmbH
- Current Assignee: Evonik Degussa GmbH
- Current Assignee Address: DE Essen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: DE102006048508 20061013
- International Application: PCT/EP2007/059535 WO 20070911
- International Announcement: WO2008/043635 WO 20080417
- Main IPC: C04B14/04
- IPC: C04B14/04
Abstract:
Surface-modified silicas Surface-modified, highly structured, potassium oxide-doped silicas, characterized by BET surface area, m2/g: 25-400 average primary particle size, nm: 5-50 pH: 3-10 carbon content, % by weight: 0.1-10 potassium oxide content, % by weight: 0.000001-40 are prepared by subjecting a potassium oxide-doped silica to surface modification. It can be used as a filler in silicone rubber compositions.
Public/Granted literature
- US20100022694A1 SURFACE-MODIFIED SILICAS Public/Granted day:2010-01-28
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