Method for producing pigment dispersion and pigment...

Details Method for producing pigment dispersion and pigment... Method for producing pigment dispersion and pigment...

2005-10-27

2009-11-24

Egwim, Kelechi C (Department: 1796)

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C106S311000, C106S493000

Reexamination Certificate

active

07621993

ABSTRACT:
A method for producing a pigment dispersion, including the steps of: preparing a fluid in a supercritical or subcritical state in which a pigment is dissolved; and introducing into a microreactor the fluid in a supercritical or subcritical state in which the pigment is dissolved and a solution containing a dispersant for dispersing the pigment in a dispersing medium, precipitating the pigment in the microreactor, and dispersing the precipitated pigment in the dispersing medium using the dispersant.

REFERENCES:
patent: 2002/0040662 (2002-04-01), Dietz et al.
patent: 2006/0057485 (2006-03-01), Teshima et al.
patent: 2006/0060109 (2006-03-01), Yamada et al.
patent: 2001-172532 (2001-06-01), None
patent: 2004-33901 (2004-02-01), None
patent: 2004045654 (2004-02-01), None
patent: 2004144787 (2004-05-01), None

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