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Title:
THICKENER FOR EXCAVATING SLURRY, EXCAVATING SLURRY USING THE THICKENER, AND CAST-INPLACE UNDERGROUND PILE WORK METHOD AND UNDERGROUND CONTINUOUS WALL WORK METHOD USING THE EXCAVATING SLURRY
Document Type and Number:
WIPO Patent Application WO/2002/088273
Kind Code:
A1
Abstract:
A thickener for excavating slurry having excellent anti-cement staining, hard to be rotted, and suppressing a foamability causing an operational problem, an excavating slurry using the thickener, and cast-inplace underground pile work method and underground continuous wall work method using the excavating slurry, the thickener for excavating slurry comprising alkali thickening emulsion, the excavating slurry comprising the thickener for excavating slurry providing the apparent specific gravity of 1.05 g/ml or more when measured immediately after strong stirring and the apparent specific gravity of 1.10 g/ml or more when measured 10 minutes after the strong stirring in a strongly stirring foaming test for a material obtained by adding alkali substance to the thickener.

Inventors:
Kono, Katsuyuki (1-1-93, Onokosei Shigacho Shiga-gun, Shiga, 520-0532, JP)
Motoyama, Atsushi (89-2-6-304, Nishifutami Futamicho Akashi-shi, Hyogo, 674-0094, JP)
Nakamoto, Keiichi (5-1-204, Nishimachi Takatsuki-shi, Osaka, 569-0854, JP)
Ooi, Jinichi (254 Aza Takinosawa Oaza Oishi Sakata-shi, Yamagata, Yamagata, 998-0802, JP)
Kimura, Makoto (1-17-16, Midorigaoka Sakata-shi, Yamagata, 998-0052, JP)
Abe, Katsuhisa (1-9-12, Midorigaoka Sakata-shi, Yamagata, 998-0052, JP)
Harada, Eikichi (58-1, Mitsuguruma Oaza Todoroki Amarumemachi Higashitagawa-gun, Yamagata, 999-7707, JP)
Application Number:
PCT/JP2002/004167
Publication Date:
November 07, 2002
Filing Date:
April 25, 2002
Export Citation:
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Assignee:
NIPPON SHOKUBAI CO., LTD. (1-1 Koraibashi 4-chome Chuo-ku Osaka-shi, Osaka, Osaka, 541-0043, JP)
Kono, Katsuyuki (1-1-93, Onokosei Shigacho Shiga-gun, Shiga, 520-0532, JP)
Motoyama, Atsushi (89-2-6-304, Nishifutami Futamicho Akashi-shi, Hyogo, 674-0094, JP)
Nakamoto, Keiichi (5-1-204, Nishimachi Takatsuki-shi, Osaka, 569-0854, JP)
Ooi, Jinichi (254 Aza Takinosawa Oaza Oishi Sakata-shi, Yamagata, Yamagata, 998-0802, JP)
Kimura, Makoto (1-17-16, Midorigaoka Sakata-shi, Yamagata, 998-0052, JP)
Abe, Katsuhisa (1-9-12, Midorigaoka Sakata-shi, Yamagata, 998-0052, JP)
Harada, Eikichi (58-1, Mitsuguruma Oaza Todoroki Amarumemachi Higashitagawa-gun, Yamagata, 999-7707, JP)
International Classes:
E02D5/34; C08F220/06; C09K8/04; E02D5/18; E02D5/20; E02D17/18; E02D17/20; (IPC1-7): C09K7/02; E02D5/18; E02D5/20; E02D5/34
Foreign References:
EP0979856A1
JP2001081448A
JP2000212552A
JPS58104981A
Other References:
See also references of EP 1382657A1
Attorney, Agent or Firm:
Oguri, Shohei (Eikoh Patent Office 28th Floor, ARK Mori Building 12-32 Akasaka 1-chome Minato-ku, Tokyo, 107-6028, JP)
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