Carbon black paint and method for manufacturing the same

• US 20070009422A1
• Filed: 07/03/2006
• Published: 01/11/2007
• Est. Priority Date: 07/08/2005
• Status: Abandoned Application

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Matsuda, Keisuke
• Application Number:
  US11/478,583
• Publication Number:
  US 20070009422A1
• Time in Patent Office: Days
• US Class Current: 423/449.200
• CPC Class Codes: C01P 2006/12 Surface area
• CPC Class Codes: C01P 2006/19 Oil-absorption capacity, e.g. DBP values
• CPC Class Codes: C08K 3/04 Carbon
• CPC Class Codes: C09C 1/56 Treatment of carbon black ; Purification
• CPC Class Codes: C09D 17/002 in organic medium C09D17/003, C09D17/004 take precedence
• CPC Class Codes: C09D 17/005 Carbon black
• CPC Class Codes: C09D 7/61 inorganic
• CPC Class Codes: C09D 7/80 Processes for incorporating ingredients

Abstract

In the present invention, a carbon black paint which is less likely to produce a sediment is manufactured by carrying out an easy and compact dispersion treatment. A stock solution of carbon black powder in an organic solvent flows in a liquid tank where an ultrasonic wave is applied to a solution while stirring the solution by a stirrer to disperse the powder. Then, the solution is filtered through a filter located near the ultrasonic applying section. Only the dispersion-treated solution passing through the filter is fed to a product tank through a liquid discharge port.

Claims

1. A method for manufacturing a carbon black paint comprising the step of:

dispersing a carbon black powder in an organic solvent,

wherein the dispersion treatment of the carbon black powder is carried out by ultrasonic dispersion treatment without using a dispersant and/or a binder.

2. The method for manufacturing a carbon black paint according to claim 1,

wherein the ultrasonic dispersion treatment is carried out at a frequency of 20 KHz or more.

3. The method for manufacturing a carbon black paint according to claim 1,

wherein the organic solvent is stirred and the ultrasonic wave is applied thereto in advance, and then the carbon black powder is added to the organic solvent in such a state.

4. The method for manufacturing a carbon black paint according to claim 1,

wherein the ultrasonic dispersion treatment is carried out by batch process.

5. The method for manufacturing a carbon black paint according to claim 1,

wherein a solution having undergone the ultrasonic dispersion treatment further undergoes bead mill dispersion treatment.

6. A carbon black paint manufactured by the method for manufacturing a carbon black paint according to claim 1.

7. The method for manufacturing a carbon black paint according to claim 2,

wherein the organic solvent is stirred and the ultrasonic wave is applied thereto in advance, and then the carbon black powder is added to the organic solvent in such a state.

8. The method for manufacturing a carbon black paint according to claim 2,

wherein the ultrasonic dispersion treatment is carried out by batch process.

9. The method for manufacturing a carbon black paint according to claim 2,

wherein a solution having undergone the ultrasonic dispersion treatment further undergoes bead mill dispersion treatment.

10. A carbon black paint manufactured by the method for manufacturing a carbon black paint according to claim 2.

11. The method for manufacturing a carbon black paint according to claim 3,

wherein the ultrasonic dispersion treatment is carried out by batch process.

12. The method for manufacturing a carbon black paint according to claim 3,

wherein a solution having undergone the ultrasonic dispersion treatment further undergoes bead mill dispersion treatment.

13. A carbon black paint manufactured by the method for manufacturing a carbon black paint according to claim 3.

14. The method for manufacturing a carbon black paint according to claim 4,

wherein a solution having undergone the ultrasonic dispersion treatment further undergoes bead mill dispersion treatment.

15. A carbon black paint manufactured by the method for manufacturing a carbon black paint according to claim 4.

16. A carbon black paint manufactured by the method for manufacturing a carbon black paint according to claim 5.