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Patent Searching and Data


Title:
PIGMENT COMPOSITION PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/065062
Kind Code:
A1
Abstract:
The present invention relates to (1) a pigment composition production method including a step in which a raw material pigment composition containing C.I. Pigment Yellow 74, a specific byproduct, and water is subjected to heat treatment at a temperature of 160-210 °C and (2) a method for reducing the content of a byproduct within a raw material pigment composition containing C.I. Pigment Yellow 74, a specific byproduct, and water by subjecting the raw material pigment composition to heat treatment at a temperature of 160-210 °C.

Inventors:
ABE, Shuichi (1334 Minato, Wakayama-sh, Wakayama 80, 〒6408580, JP)
ODA, Tsuyoshi (1334 Minato, Wakayama-sh, Wakayama 80, 〒6408580, JP)
IWASAKI, Toshiya (1334 Minato, Wakayama-sh, Wakayama 80, 〒6408580, JP)
Application Number:
JP2016/079554
Publication Date:
April 20, 2017
Filing Date:
October 04, 2016
Export Citation:
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Assignee:
KAO CORPORATION (14-10, Nihonbashi Kayabacho 1-chome Chuo-k, Tokyo 10, 〒1038210, JP)
International Classes:
C09B67/54; B41J2/01; C09B29/33; C09B67/20; C09B67/46; C09D17/00; B41M5/00
Foreign References:
JP2004123866A2004-04-22
JP2014177575A2014-09-25
JP2008063524A2008-03-21
JP2016023267A2016-02-08
Other References:
POSKOCIL, J.: "Aromatic diazo- and azo compounds. XXXIV. Cleavage of the acetyl group in azo dyes derived from acetanilide and preparation of new formazan dyes", COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 24, 1959, pages 3746 - 3753, XP055524072
See also references of EP 3363867A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (OHTANI PATENT OFFICE, Toranomon ES Bldg. 7F. 25-2, Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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