Invention Grant
- Patent Title: Paper production with modified silica gels as microparticles
- Patent Title (中): 用改性硅胶作为微粒生产纸
-
Application No.: US10561620Application Date: 2004-06-30
-
Publication No.: US07708862B2Publication Date: 2010-05-04
- Inventor: Karlheinrich Meisel , Bernd Thiele , Gerd-Friedrich Renner , Johan Kijlstra , Arno Nennemann , Thomas Hübbe , Lothar Puppe
- Applicant: Karlheinrich Meisel , Bernd Thiele , Gerd-Friedrich Renner , Johan Kijlstra , Arno Nennemann , Thomas Hübbe , Lothar Puppe
- Applicant Address: FI
- Assignee: Kemira Oyj
- Current Assignee: Kemira Oyj
- Current Assignee Address: FI
- Agency: Cantor Colburn LLP
- Priority: DE10330395 20030704; DE102004020112 20040424
- International Application: PCT/EP2004/007081 WO 20040630
- International Announcement: WO2005/003455 WO 20050113
- Main IPC: D21H21/10
- IPC: D21H21/10
Abstract:
Use of silica sols containing sulfonic acid groups and/or mercapto groups as microparticles in paper production, in particular for paper retention.
Public/Granted literature
- US20070272383A1 Paper Production with Modified Silica Sols as Microparticles Public/Granted day:2007-11-29
Information query
