Title:
TITANIUM DIOXIDE PIGMENT, ITS PRODUCTION AND WATER-BASED COATING COMPOSITION
Document Type and Number:
Japanese Patent JP2950495
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a water-based coating composition which can give a coating film having high water-resistance by using titanium dioxide surface-treated with a specified organophosphoric ester.
SOLUTION: This titanium dioxide pigment is prepared by surface-treating titanium dioxide particles (B) with an organophosphoric ester (A) represented by the formula (wherein x is O-(R'O)mR; Y and Z, which may be the same or different from each other, are each OH or its salt). An example of component A is polyoxyethylenenonyl phenyl ester phosphate. Component B has a particle diameter of 0.15-0.4μm and is treated with 0.1-5wt.%, based on component C, component A. Component B is optionally treated with a (hydr)oxide of Al, Si, Ti or the like before being subjected to the above treatment. A water-based coating composition is obtained by mixing this pigment with a water-based film-forming component.
Inventors:
ISHIMURA YASUO
MARUBAYASHI YASUSHI
FUJIMURA TAKESHI
HISAI TSUNETAKA
HASHIGAKI KAZUTAKA
TACHIBANA YOSHIKI
MARUBAYASHI YASUSHI
FUJIMURA TAKESHI
HISAI TSUNETAKA
HASHIGAKI KAZUTAKA
TACHIBANA YOSHIKI
Application Number:
JP30812495A
Publication Date:
September 20, 1999
Filing Date:
October 31, 1995
Export Citation:
Assignee:
ISHIHARA SANGYO KK
International Classes:
C09C1/36; C09C3/08; C09D7/12; C09D133/04; C09D133/06; C09D161/04; C09D161/08; C09D175/00; C09D175/04; (IPC1-7): C09C1/36; C09C3/08; C09D7/12; C09D133/06; C09D161/08; C09D175/04
Domestic Patent References:
| JP61203118A | ||||
| JP63265960A | ||||
| JP58117259A | ||||
| JP4951318A | ||||
| JP4627148B1 |
Attorney, Agent or Firm:
Tsunehiko Ichikawa
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