STABLE AQUEOUS SUSPENSION COMPOSITION OF 2-AMINO-3-CHLORO-1,4-NAPHTHOQUINONE

Title:

STABLE AQUEOUS SUSPENSION COMPOSITION OF 2-AMINO-3-CHLORO-1,4-NAPHTHOQUINONE

Document Type and Number:

Japanese Patent JP3778527

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To obtain the subject composition while suppressing the crystal growth of 2-amino-3-chloro-1,4-naphthoquinone during the storage over a long period by using the naphthoquinone compound in combination with a specific surfactant and a synthetic silica containing aluminum.
SOLUTION: 2-Amino-3-chloro1,4,-naphthoquinone (5-70wt.%) is used in combination with a sulfonate-type anionic surfactant or a polyoxyethylene- polyoxypropylene block polymer (0.5-10wt.%) produced by the addition polymerization of 30-70wt.% of a polyoxyethylene to both terminals of a polyoxypropylene (molecular weight: 1,800), a synthetic silica (0.1-5wt.%) containing aluminum and a heteropolysaccharide (0.05-5wt.%). The sulfonate-type anionic surfactant is preferably an alkylnaphthalene sulfonate, a naphthalene sulfonate-formaldehyde condensate, etc., and the synthetic silica preferably contains ≥0.3wt.% of aluminum in terms of Al2O3.

Inventors:

Ueda Seiji
Chuichi Watanabe
Kenji Okada
Satoru Obuchi

Application Number:

JP8616296A

Publication Date:

May 24, 2006

Filing Date:

April 09, 1996

Export Citation:

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Assignee:

Agro-Kanesho Co., Ltd.
Toho Chemical Industry Co., Ltd.

International Classes:

A01N35/06; C07C221/00; A01N25/04; A01P13/00; C07C225/30; (IPC1-7): A01N35/06; A01N25/04; C07C221/00; C07C225/30

Domestic Patent References:

JP4327502A
JP4270201A
JP5139904A
JP55002663A

Attorney, Agent or Firm:

Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Kenji Asai

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