グラウト工法用セメント組成物用添加剤

Japanese Patent JP4267100

B2

PROBLEM TO BE SOLVED: To provide an additive combinedly having a high flowability-imparting property to hydraulic compositions and an improved clay viscosity-imparting property, satisfying a standard strength, and useful for the hydraulic compositions. SOLUTION: This additive for hydraulic compositions comprises (I) a copolymer (II) a polymer in a I/II weight ratio of 5/95 to 95/5. (I) A vinylic copolymer containing 2-3C polyoxyalkylene groups (average addition mole number: 2-300) in the molecule and having a weight-average mol.wt. of 5,000-500,000. (II) A polymer having a mol.wt. of 1,000-20,000 and prepared by copolymerizing one or more monomers of the formula [R1 is hydrogen atom or methyl group; R2, R3 are each hydrogen atom, methyl group or M2O(CO)(CH2)m1; M1, M2 are each hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, or a mono-, di-or tri-alkylammonium which may be substituted by a hydroxyl group; (m1) is an integer of 0-2].

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Daisuke Shiba
Masao Shimoda
Wa Fuji Sakura

JP25241598A

May 27, 2009

September 07, 1998

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Kao Corporation

C04B28/02; C04B24/26; C04B40/00; C08F290/06; C08L33/02; C08L35/00; C08L55/00; C04B103/32; C04B103/40; C04B111/70

JP7247150A
JP7257951A
JP4367548A
JP967153A
JP4338144A

Satoshi Furuya
Kaoru Furuya
Takahiko Mizobe
Shinji Mochida

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