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A platform for research: civil engineering, architecture and urbanism
DISPERSION AGENT FOR HYDRAULIC COMPOSITION AND HYDRAULIC COMPOSITION
To provide a dispersion agent for hydraulic composition and a hydraulic composition which give high flowability, reduce viscosity and prevent a setting delay.SOLUTION: A dispersion agent for hydraulic composition, which is used in a hydraulic composition containing water and a binder so that a water/binder ratio is 0.05 or more and less than 0.20 in a mass ratio, contains a copolymer having a constitutional unit (a), a constitutional unit (b) and a constitutional unit (c), in which in the copolymer, a mass average molecular weight in terms of polyethylene glycol/polyethylene oxide that is measured by gel permeation chromatography is within 5-50 times a mass average molecular weight of a monomer represented by the formula of the following constitutional unit (b), and is within 1.5-10 times a mass average molecular weight of a monomer represented by the formula of the constitutional unit (c). In the constitutional unit (a), a maleic acid and the constitutional units (b) and (c) are copolymers of allyl polyalkylene glycol ether.SELECTED DRAWING: None
【課題】高い流動性を与え、粘性を低下させ、さらに凝結を遅延しない水硬性組成物用分散剤及び水硬性組成物を提供する。【解決手段】水／結合材比が質量比で０．０５以上０．２０未満となるように水及び結合材を含有する水硬性組成物に用いる水硬性組成物用分散剤であって、構成単位（ａ）と構成単位（ｂ）と構成単位（ｃ）を有する共重合体を含み、かつ、前記共重合体は、ゲルパーミエーションクロマトグラフで測定したポリエチレングリコール／ポリエチレンオキシド換算の質量平均分子量が下記の構成単位（ｂ）の式で示される単量体の質量平均分子量の５〜５０倍の範囲内、構成単位（ｃ）の式で示される単量体の質量平均分子量の１．５〜１０倍の範囲内にある水硬性組成物用分散剤である。構成単位（ａ）は、マレイン酸、構成単位（ｂ）、（ｃ）は、アリルポリアルキレングリコールエーテルの共重合物である。【選択図】なし
DISPERSION AGENT FOR HYDRAULIC COMPOSITION AND HYDRAULIC COMPOSITION
To provide a dispersion agent for hydraulic composition and a hydraulic composition which give high flowability, reduce viscosity and prevent a setting delay.SOLUTION: A dispersion agent for hydraulic composition, which is used in a hydraulic composition containing water and a binder so that a water/binder ratio is 0.05 or more and less than 0.20 in a mass ratio, contains a copolymer having a constitutional unit (a), a constitutional unit (b) and a constitutional unit (c), in which in the copolymer, a mass average molecular weight in terms of polyethylene glycol/polyethylene oxide that is measured by gel permeation chromatography is within 5-50 times a mass average molecular weight of a monomer represented by the formula of the following constitutional unit (b), and is within 1.5-10 times a mass average molecular weight of a monomer represented by the formula of the constitutional unit (c). In the constitutional unit (a), a maleic acid and the constitutional units (b) and (c) are copolymers of allyl polyalkylene glycol ether.SELECTED DRAWING: None
【課題】高い流動性を与え、粘性を低下させ、さらに凝結を遅延しない水硬性組成物用分散剤及び水硬性組成物を提供する。【解決手段】水／結合材比が質量比で０．０５以上０．２０未満となるように水及び結合材を含有する水硬性組成物に用いる水硬性組成物用分散剤であって、構成単位（ａ）と構成単位（ｂ）と構成単位（ｃ）を有する共重合体を含み、かつ、前記共重合体は、ゲルパーミエーションクロマトグラフで測定したポリエチレングリコール／ポリエチレンオキシド換算の質量平均分子量が下記の構成単位（ｂ）の式で示される単量体の質量平均分子量の５〜５０倍の範囲内、構成単位（ｃ）の式で示される単量体の質量平均分子量の１．５〜１０倍の範囲内にある水硬性組成物用分散剤である。構成単位（ａ）は、マレイン酸、構成単位（ｂ）、（ｃ）は、アリルポリアルキレングリコールエーテルの共重合物である。【選択図】なし
DISPERSION AGENT FOR HYDRAULIC COMPOSITION AND HYDRAULIC COMPOSITION
水硬性組成物用分散剤及び水硬性組成物
FURUTA AKIHIRO (author) / BABA NAOKI (author) / SAWADA AKIRA (author)
2021-02-22
Patent
Electronic Resource
Japanese
| European Patent Office | 2019
| European Patent Office | 2019
| European Patent Office | 2021