Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PRODUCTION METHOD OF DISPERSANT FOR HYDRAULIC POWDER
To provide a method for producing a dispersant that can impart excellent freeze-thaw resistance to a hardened body of a hydraulic composition.SOLUTION: In a method for producing a dispersant for a hydraulic powder, a monomer containing a monomer (A1) and a monomer (A2) represented by the following formula is reacted in a reaction medium containing water to obtain a copolymer. In the production method, (A1) and (A2) are used at a ratio of (A1) to the sum of (A1) and (A2) of 20 mass% or more and 28 mass% or less, and the concentration of solids in the reaction medium is controlled to 40 mass% or less from the time the total amount of (A1) and (A2) is introduced into the reaction medium until the reaction is completed.SELECTED DRAWING: None
【課題】水硬性組成物の硬化体に優れた凍結融解抵抗性を付与できる分散剤の製造方法。【解決手段】下式で表される単量体（Ａ１）及び単量体（Ａ２）を含む単量体を、水を含む反応媒体中で反応させて共重合体を得る、水硬性粉体用分散剤の製造方法。（Ａ１）及び（Ａ２）を、（Ａ１）及び（Ａ２）の合計に対する（Ａ１）の割合が２０質量％以上２８質量％以下で用い、（Ａ１）及び（Ａ２）の全量が反応媒体中に導入されてから反応が終了するまで、反応媒体中の固形分の濃度を４０質量％以上に制御する、製造方法。JPEG2023028723000007.jpg64170【選択図】なし
PRODUCTION METHOD OF DISPERSANT FOR HYDRAULIC POWDER
To provide a method for producing a dispersant that can impart excellent freeze-thaw resistance to a hardened body of a hydraulic composition.SOLUTION: In a method for producing a dispersant for a hydraulic powder, a monomer containing a monomer (A1) and a monomer (A2) represented by the following formula is reacted in a reaction medium containing water to obtain a copolymer. In the production method, (A1) and (A2) are used at a ratio of (A1) to the sum of (A1) and (A2) of 20 mass% or more and 28 mass% or less, and the concentration of solids in the reaction medium is controlled to 40 mass% or less from the time the total amount of (A1) and (A2) is introduced into the reaction medium until the reaction is completed.SELECTED DRAWING: None
【課題】水硬性組成物の硬化体に優れた凍結融解抵抗性を付与できる分散剤の製造方法。【解決手段】下式で表される単量体（Ａ１）及び単量体（Ａ２）を含む単量体を、水を含む反応媒体中で反応させて共重合体を得る、水硬性粉体用分散剤の製造方法。（Ａ１）及び（Ａ２）を、（Ａ１）及び（Ａ２）の合計に対する（Ａ１）の割合が２０質量％以上２８質量％以下で用い、（Ａ１）及び（Ａ２）の全量が反応媒体中に導入されてから反応が終了するまで、反応媒体中の固形分の濃度を４０質量％以上に制御する、製造方法。JPEG2023028723000007.jpg64170【選択図】なし
PRODUCTION METHOD OF DISPERSANT FOR HYDRAULIC POWDER
水硬性粉体用分散剤の製造方法
SASHIHARA YOSHIAKI (Autor:in) / NAKAMURA KEISUKE (Autor:in)
03.03.2023
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
POWDER DISPERSANT COMPOSITION FOR HYDRAULIC COMPOSITIONS
| Europäisches Patentamt | 2024
POWDER DISPERSANT COMPOSITION FOR HYDRAULIC COMPOSITION
| Europäisches Patentamt | 2021