Title:
CEMENT DISPERSING AGENT
Document Type and Number:
WIPO Patent Application WO/2008/032800
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a cement dispersing agent which has a high water reducing property and a good slump retention property, and can achieve a low concrete viscosity and good applicability. [MEANS FOR SOLVING PROBLEMS] Disclosed is a cement dispersing agent comprising a polycarboxylic acid polymer which is formed by mixing a constituent unit (I) composed of a reactive alcohol alkylene oxide adduct and a constituent unit (II) composed of a reactive dibasic acid and optionally a constituent unit (III) having a polyamidoamine therein with one another, wherein the alkylene oxide adduct in the constituent unit (I) is mainly composed of ethylene oxide and has an alkylene oxide having 3 or 4 carbon atoms added to its terminus in a given amount. The cement dispersing agent is excellent in a water reducing property and a retention property and can achieve a low concrete viscosity.
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Inventors:
IKEDA, Akira (10-banchi, Kitasod, Sodegaura-shi Chiba 66, 2990266, JP)
池田 亮 (〒66 千葉県袖ヶ浦市北袖１０番地 東邦化学工業株式会社内 Chiba, 2990266, JP)
KOSHISAKA, Seiichi (10-banchi, Kitasod, Sodegaura-shi Chiba 66, 2990266, JP)
越坂 誠一 (〒66 千葉県袖ヶ浦市北袖１０番地 東邦化学工業株式会社内 Chiba, 2990266, JP)
池田 亮 (〒66 千葉県袖ヶ浦市北袖１０番地 東邦化学工業株式会社内 Chiba, 2990266, JP)
KOSHISAKA, Seiichi (10-banchi, Kitasod, Sodegaura-shi Chiba 66, 2990266, JP)
越坂 誠一 (〒66 千葉県袖ヶ浦市北袖１０番地 東邦化学工業株式会社内 Chiba, 2990266, JP)
Application Number:
JP2007/067877
Publication Date:
March 20, 2008
Filing Date:
September 13, 2007
Export Citation:
Assignee:
TOHO CHEMICAL INDUSTRY CO., LTD. (6-4 Akashicho, Chuo-ku, Tokyo 44, 1040044, JP)
東邦化学工業株式会社 (〒44 東京都中央区明石町６番４号 Tokyo, 1040044, JP)
IKEDA, Akira (10-banchi, Kitasod, Sodegaura-shi Chiba 66, 2990266, JP)
池田 亮 (〒66 千葉県袖ヶ浦市北袖１０番地 東邦化学工業株式会社内 Chiba, 2990266, JP)
KOSHISAKA, Seiichi (10-banchi, Kitasod, Sodegaura-shi Chiba 66, 2990266, JP)
東邦化学工業株式会社 (〒44 東京都中央区明石町６番４号 Tokyo, 1040044, JP)
IKEDA, Akira (10-banchi, Kitasod, Sodegaura-shi Chiba 66, 2990266, JP)
池田 亮 (〒66 千葉県袖ヶ浦市北袖１０番地 東邦化学工業株式会社内 Chiba, 2990266, JP)
KOSHISAKA, Seiichi (10-banchi, Kitasod, Sodegaura-shi Chiba 66, 2990266, JP)
International Classes:
C04B24/26; C08F290/06; C08G65/332; C08G81/02; C04B103/40
Attorney, Agent or Firm:
HANABUSA, Tsuneo et al. (Shin-Ochanomizu Urban Trinity2, Kandasurugadai 3-chome, Chiyoda-ku Tokyo 62, 1010062, JP)
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