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:
Jun. 17, 1986
Filed:
Oct. 29, 1984
Takeomi Murakami, Yokohama, JP;
Nobuo Ishikawa, Yokohama, JP;
Daikin Kogyo Co., Ltd., Osaka, JP;
Takeomi Murakami, Yokohama, JP;
Daido Kasei Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A process for treating an aqueous slurry of pigment which comprises adding to the aqueous slurry a halogenated carbon medium which is in liquid state at room temperature and has at least one member selected from the group consisting of fluorine atom and chlorine atom in the molecule; agitating the aqueous slurry vigorously; separating the pigment in a form of cake containing the halogenated carbon medium; and drying the cake. According to the process of the present invention, a filtering step and a washing step can be eliminated and energy for drying can be greatly reduced. The pigment product obtained is excellent in brilliancy and clearness.