IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0081206
(2008-04-11)
|
등록번호 |
US-7682443
(2010-04-21)
|
우선권정보 |
JP-2007-103981(2007-04-11) |
발명자
/ 주소 |
- Sato, Tadahisa
- Maeta, Hideki
- Tanabe, Jun
- Kyota, Hirokazu
|
출원인 / 주소 |
|
대리인 / 주소 |
Buchanan Ingersoll & Rooney PC
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
1 |
초록
▼
An organic-pigment aqueous dispersion, containing a pigment at a concentration of 6 to 30 mass %, and having a haze of 0.3 to 10%, as determined by enclosing the dispersion in a transparent glass cell of optical distance 0.2 mm and analyzing with integrating-sphere photoelectric photometry; and a co
An organic-pigment aqueous dispersion, containing a pigment at a concentration of 6 to 30 mass %, and having a haze of 0.3 to 10%, as determined by enclosing the dispersion in a transparent glass cell of optical distance 0.2 mm and analyzing with integrating-sphere photoelectric photometry; and a colored coating composition using the same.
대표청구항
▼
What we claim is: 1. An organic-pigment aqueous dispersion, comprising a pigment at a concentration of 6 to 30 mass %, and having a haze of 0.3 to 10%, as determined by enclosing the dispersion in a transparent glass cell of optical distance 0.2 mm and analyzing with integrating-sphere photoelectri
What we claim is: 1. An organic-pigment aqueous dispersion, comprising a pigment at a concentration of 6 to 30 mass %, and having a haze of 0.3 to 10%, as determined by enclosing the dispersion in a transparent glass cell of optical distance 0.2 mm and analyzing with integrating-sphere photoelectric photometry, wherein the aqueous dispersion contains at least one anionic surfactant that has a solubility of 5 mass % or more in an aprotic polar solvent, the at least one anionic surfactant being represented by formula (I), having a molecular weight of 400 to 2,000 wherein R1 represents an alkyl group having 5 to 20 carbon atoms; R2 represents an alkyl, alkenyl, or alkynyl group having 3 to 10 carbon atoms; R3 represents —SO3M or —(CH2)n—COOM, in which M represents a sodium, potassium, or ammonium ion; and n is 1 or 2; and m is an integer of 1 to 20. 2. The organic-pigment aqueous dispersion as claimed in claim 1, wherein a volume-average diameter (MV) of the organic pigment contained in the aqueous dispersion is 3 to 80 nm, and the ratio of volume-average diameter (MV)/number-average diameter (MN) is 1.2 to 1.80. 3. The organic-pigment aqueous dispersion as claimed in claim 1, wherein the aprotic solvent is dimethylsulfoxide (DMSO). 4. The organic-pigment aqueous dispersion as claimed in claim 1, which is prepared by a pH-changing coprecipitation method. 5. The organic-pigment aqueous dispersion as claimed in claim 4, wherein the pH-changing coprecipitation method is carried out in the course of flow in a channel. 6. The organic-pigment aqueous dispersion as claimed in claim 5, wherein the channel in the pH-changing coprecipitation method is a micro space. 7. The organic-pigment aqueous dispersion as claimed in claim 1, wherein a value, as determined by: forming a film with the aqueous dispersion by the following operations 1 to 4, and measuring a haze of the film with integrating-sphere photoelectric photometry, is 0.5 to 5%: 1. adjusting the organic-pigment aqueous dispersion with distilled water to a concentration of 5 mass %, to give a dispersion A; 2. adding polyvinyl alcohol (Kuraray Poval PVA205, trade name) to the dispersion A at a mass ratio of 10% to give a mixture thereof, and agitating the mixture thoroughly, to give a dispersion B; 3. applying the dispersion B on a transparent glass with a bar coater, to give a film of thickness 20±2 μm; and 4. drying the film at 50° C. for 3 hours. 8. The organic-pigment aqueous dispersion as claimed in claim 1, wherein the dispersion is purified and concentrated with an ultrafiltration membrane. 9. A method of producing an organic-pigment aqueous dispersion, comprising: diluting the organic-pigment aqueous dispersion as claimed in claim 1, to a pigment concentration of lower than 10 mass %. 10. A colored coating composition, comprising the aqueous organic pigment fine-particle dispersion as claimed in claim 1 as a coloring component, and comprising at least one inorganic oxide as a matrix component. 11. The colored coating composition as claimed in claim 10, wherein, when a film of dry film thickness 300±10 nm is formed on a glass plate of thickness 1.0±0.1 mm by spin coating of the colored coating composition, a haze of the film is 0.03 to 0.1%. 12. The colored coating composition as claimed in claim 10, wherein the inorganic oxide is a metal alkoxide and/or a metal-alkoxide hydrolytic condensate. 13. The colored coating composition as claimed in claim 10, wherein the colored coating composition contains a solvent which contains water as a major component. 14. A coated article, which is prepared with the organic-pigment aqueous dispersion as claimed in claim 1.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.