The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2011
Filed:
Oct. 16, 2007
Akihiro Ogata, Kashima, JP;
Nagatoshi Kobayashi, Kashima, JP;
Akihiro Ogata, Kashima, JP;
Nagatoshi Kobayashi, Kashima, JP;
DIC Corporation, Tokyo, JP;
Abstract
The present invention provides a method for producing dry organic pigment, comprising the successive steps of, in this order: a first step wherein a wet organic pigment is obtained by drying an organic pigment presscake at 70 to 150° C. to a moisture content of 5 to 30%, and a second step wherein a dry organic pigment is obtained by pulverizing and drying the wet organic pigment at a temperature that is higher than the temperature employed in the first step but lower than the decomposition temperature of the organic pigment. The method for producing dry organic pigment enables the dry organic pigment to be obtained with superior productivity while consuming less energy than conventional methods.