Invention Grant
US07905953B2 Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufacture
有权
具有掺杂，致密SiO 2皮肤的二氧化钛颜料颗粒及其制造方法
- Patent Title: Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufacture
- Patent Title (中): 具有掺杂，致密SiO 2皮肤的二氧化钛颜料颗粒及其制造方法
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Application No.: US11668729Application Date: 2007-01-30
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Publication No.: US07905953B2Publication Date: 2011-03-15
- Inventor: Siegfried Bluemel , Lydia Drews-Nicolai
- Applicant: Siegfried Bluemel , Lydia Drews-Nicolai
- Applicant Address: DE Leverkusen
- Assignee: Kronos International Inc
- Current Assignee: Kronos International Inc
- Current Assignee Address: DE Leverkusen
- Agent Rodney T Hodgson
- Priority: DE102006004345 20060130; DE102006054988 20061122
- Main IPC: C09C1/36
- IPC: C09C1/36 ; B32B5/16 ; B32B9/00 ; B32B15/02 ; B32B17/02 ; B32B19/00 ; B32B21/02 ; B32B23/02 ; B32B27/02 ; D06N7/04 ; E01F9/04 ; E04D7/00
Abstract:
A method of predicting photostability of coatings with various dopants on titanium dioxide pigment particles is disclosed. Calculations of the density of states show that a doped coating which reduces the density of states near the band edge or increases the density of states within the band gap of the pigment particles increases the photostability of the doped pigment.
Public/Granted literature
- US20070175365A1 Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufacture Public/Granted day:2007-08-02
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