Title:
【発明の名称】チオバチルス・チオオキシダンス生育阻害剤、セメント組成物及びセメント構造体
Document Type and Number:
Japanese Patent JP3320074
Kind Code:
B2
Abstract:
To provide a Thiobacillus thiooxidans growth inhibitor, a cement composition, and a cement structure which are capable of inhibiting effectively growth of Thiobacillus thiooxidans not only in the neutral pH range but also in the acidic pH range of 4 or below, of which active component metal ions are sufficiently prevented from being dissolved and released when contained in a cement structure, and of which effect can be maintained for a prolonged period of time. The inhibitor contains a first component selected from the group consisting of nickel phthalocyanine powders, powders of a nickel phthalocyanine derivative, and mixtures thereof, and a second component selected from the group consisting of tungsten powders, powders of a substantially water-insoluble tungsten compound, a water-soluble salt of tungstic acid turning to substantially water-insoluble when reacted with cement, and mixtures thereof.
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Inventors:
Terunobu Maeda
Atsunori Negishi
Hiromi Uchida
Toshio Enokida
Reiko Tanaka
Atsunori Negishi
Hiromi Uchida
Toshio Enokida
Reiko Tanaka
Application Number:
JP50690099A
Publication Date:
September 03, 2002
Filing Date:
July 14, 1998
Export Citation:
Assignee:
Mamagumi Co., Ltd.
Toyo Ink Mfg. Co., Ltd.
Toyo Ink Mfg. Co., Ltd.
International Classes:
A01N59/16; C04B22/06; C04B22/08; C04B24/12; C04B40/00; (IPC1-7): A01N59/16; A01N25/00; C04B22/08; C04B24/12
Other References:
【文献】国際公開97/30005(WO,A1)
【文献】国際公開98/14062(WO,A1)
【文献】国際公開98/14062(WO,A1)
Attorney, Agent or Firm:
Hajime Sakai