Invention Grant
- Patent Title: Charged particles
- Patent Title (中): 带电粒子
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Application No.: US13376874Application Date: 2010-06-11
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Publication No.: US09403987B2Publication Date: 2016-08-02
- Inventor: Pascal Hayoz , Bernd Lamatsch , Margherita Fontana , Stephan Burkhardt , Laurent Michau , Urs Lehmann , Philippe Bugnon
- Applicant: Pascal Hayoz , Bernd Lamatsch , Achim Lamatsch , Margherita Fontana , Stephan Burkhardt , Laurent Michau , Urs Lehmann , Philippe Bugnon
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Marshall, Gerstein & Borun LLP
- Priority: EP09163640 20090624
- International Application: PCT/EP2010/058206 WO 20100611
- International Announcement: WO2010/149505 WO 20101229
- Main IPC: C09K9/00
- IPC: C09K9/00 ; G02F1/00 ; C09B69/00 ; C09B69/04 ; G02F1/167 ; C09D11/00 ; C07F9/02 ; C07F7/00 ; B01D61/42 ; B01D61/58

Abstract:
Disclosed is a composition comprising a charged particle of volume 5 nm3 to 50 million nm3 preferably having an inorganic core of SiO2, AI2O3, and/or TiO2, or a core essentially consisting of an organic pigment and/or pigment derivative, and a counter ion which is separable from the particle and is not covalently linked to the particle, said counter ion comprising a silicon atom which is directly bound to a carbon atom. Preferably, said charged particle comprises a dye attached to said inorganic core and said counter ion comprises a (poly)siloxane moiety linked via suitable bridge members to a quaternary, positively charged, nitrogen or phosphorus atom, or to a moiety carrying an anionic functional group. Said composition may be used e.g. in the form of a homogenous dispersion in an electrophoretic display.
Public/Granted literature
- US20120229884A1 CHARGED PARTICLES Public/Granted day:2012-09-13
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