Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CEMENT DISPERSANT COMPOSITION, AND CEMENT COMPOSITION
PROBLEM TO BE SOLVED: To provide a cement dispersant composition which can ensure proper workability and can exhibit excellent initial fluidity, and to provide a cement composition which contains the cement dispersant composition.SOLUTION: The cement dispersant composition contains: 100 pts. mass of a polycarboxylic acid-based copolymer (A) which contains a specific unsaturated polyalkylene glycol-based monomer (a)-derived structural unit (I) and another specific unsaturated carboxylic acid-based monomer (b)-derived structural unit (II); and 10-300 pts. mass of a compound (B) having an acid group and an aromatic ring structure (on condition that a nitrogen atom or a sulfur atom is substituted for a part of carbon atoms constituting the aromatic ring structure). A ratio of a peak area of the compound (B) having 2,500 or lower mass-average molecular weight to the total peak area of the compound (B) is 75% or higher when measured by a gel permeation chromatography (GPC).SELECTED DRAWING: Figure 1
【課題】適正な施工性を確保でき、優れた初期流動性を発現できる、セメント分散剤組成物及びそのようなセメント分散剤組成物を含むセメント組成物の提供。【解決手段】特定の不飽和ポリアルキレングリコール系単量体（ａ）由来の構造単位（Ｉ）と特定の不飽和カルボン酸系単量体（ｂ）由来の構造単位（ＩＩ）とを含むポリカルボン酸系共重合体（Ａ）１００質量部と、酸基と芳香環構造を有する化合物（Ｂ）（但し、芳香環構造を構成する炭素原子の一部が窒素原子及び／又は硫黄原子で置換されていても良い）１０質量部〜３００質量部を含み、該化合物（Ｂ）のゲルパーミエーションクロマトグラフィー（ＧＰＣ）測定で得られる全ピーク面積中の質量平均分子量が２５００以下の部分のピーク面積が７５％以上である、セメント分散剤組成物。【選択図】図１
CEMENT DISPERSANT COMPOSITION, AND CEMENT COMPOSITION
PROBLEM TO BE SOLVED: To provide a cement dispersant composition which can ensure proper workability and can exhibit excellent initial fluidity, and to provide a cement composition which contains the cement dispersant composition.SOLUTION: The cement dispersant composition contains: 100 pts. mass of a polycarboxylic acid-based copolymer (A) which contains a specific unsaturated polyalkylene glycol-based monomer (a)-derived structural unit (I) and another specific unsaturated carboxylic acid-based monomer (b)-derived structural unit (II); and 10-300 pts. mass of a compound (B) having an acid group and an aromatic ring structure (on condition that a nitrogen atom or a sulfur atom is substituted for a part of carbon atoms constituting the aromatic ring structure). A ratio of a peak area of the compound (B) having 2,500 or lower mass-average molecular weight to the total peak area of the compound (B) is 75% or higher when measured by a gel permeation chromatography (GPC).SELECTED DRAWING: Figure 1
【課題】適正な施工性を確保でき、優れた初期流動性を発現できる、セメント分散剤組成物及びそのようなセメント分散剤組成物を含むセメント組成物の提供。【解決手段】特定の不飽和ポリアルキレングリコール系単量体（ａ）由来の構造単位（Ｉ）と特定の不飽和カルボン酸系単量体（ｂ）由来の構造単位（ＩＩ）とを含むポリカルボン酸系共重合体（Ａ）１００質量部と、酸基と芳香環構造を有する化合物（Ｂ）（但し、芳香環構造を構成する炭素原子の一部が窒素原子及び／又は硫黄原子で置換されていても良い）１０質量部〜３００質量部を含み、該化合物（Ｂ）のゲルパーミエーションクロマトグラフィー（ＧＰＣ）測定で得られる全ピーク面積中の質量平均分子量が２５００以下の部分のピーク面積が７５％以上である、セメント分散剤組成物。【選択図】図１
CEMENT DISPERSANT COMPOSITION, AND CEMENT COMPOSITION
セメント分散剤組成物およびセメント組成物
KOBAYASHI NOBUHIRO (Autor:in)
22.08.2016
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
COPOLYMER FOR CEMENT DISPERSANT, CEMENT DISPERSANT COMPOSITION, AND CEMENT COMPOSITION
| Europäisches Patentamt | 2016