Title:
水硬性材料用混和剤
Document Type and Number:
Japanese Patent JP6300837
Kind Code:
B2
Abstract:
Additive comprises: an aqueous colloidal dispersion composition of at least one water-soluble salt of a polyvalent metal cation; at least one compound capable of releasing an anion that forms a sparingly soluble salt with the polyvalent metal cation; and at least one polymeric dispersant comprising anionic and/or anionogenic groups and polyether side chains. The polyvalent metal cation comprises aluminum (Al 3+>), iron (Fe 3+>), iron (Fe 2+>), zinc (Zn 2+>), manganese (Mn 2+>), copper (Cu 2+>), magnesium (Mg 2+>), calcium (Ca 2+>), strontium (Sr 2+>), and/or barium (Ba 2+>). Additive comprises: an aqueous colloidal dispersion composition of at least one water-soluble salt of a polyvalent metal cation; at least one compound capable of releasing an anion that forms a sparingly soluble salt with the polyvalent metal cation; and at least one polymeric dispersant comprising anionic and/or anionogenic groups and polyether side chains. The polyvalent metal cation comprises aluminum (Al 3+>), iron (Fe 3+>), iron (Fe 2+>), zinc (Zn 2+>), manganese (Mn 2+>), copper (Cu 2+>), magnesium (Mg 2+>), calcium (Ca 2+>), strontium (Sr 2+>), and/or barium (Ba 2+>). The amount of the metal cation is 0-1 calculated by an equation as given in the specification. An independent claim is included for preparing the additive for hydraulically setting compositions, comprising precipitating the salt of the polyvalent metal cation in the presence of the polymeric dispersant to obtain a colloidal dispersion composition of the salt, or dispersing a freshly precipitated salt of the polyvalent metal cation in the presence of the polymeric dispersant to obtain the colloidal dispersion composition of the salt.
Inventors:
Toaven Get
Halalto grathl
Alexander Claus
Backpack Nicolo
Martin Winklebauer
Halalto grathl
Alexander Claus
Backpack Nicolo
Martin Winklebauer
Application Number:
JP2015559485A
Publication Date:
March 28, 2018
Filing Date:
February 26, 2014
Export Citation:
Assignee:
Construction Research & Technology GmbH
International Classes:
C04B24/26; C04B22/08; C04B22/10; C04B22/14; C04B22/16; C04B24/04; C04B24/28; C04B28/02; C08L33/02; C08L71/00
Domestic Patent References:
| JP2009298624A |
Foreign References:
| WO2014013077A1 |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Ryoichi Shino
Takuya Kuno
Ryoichi Shino
Takuya Kuno
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