| 发明名称 | Process for manufacturing a hydraulic bonding agent, corresponding additive and its use | ||
| 摘要 | The invention relates to a method for producing a hydraulic binder, comprising contacting a composition comprising cement clinker, before, during or after the grinding procedure, with (a) a defoaming agent and (b) 0.0005% to 2% by weight, based on the total composition, of at least one air-introducing compound, the defoaming agent (a) comprising 0.0001% to 0.5% by weight, based on the total composition, of at least one defoaming agent of the formula R10—(CmH2m—O—)x—(CdH2d—O—)c—H and the ratio of (a) to (b) being between 1:1 to 1:200. | ||
| 申请公布号 | US9162926(B2) | 申请公布日期 | 2015.10.20 |
| 申请号 | US201314396787 | 申请日期 | 2013.04.22 |
| 申请人 | Construction Research & Technology, GmbH | 发明人 | Vierle Mario;Ernst Martin;Stefan Madalina Andreea |
| 分类号 | C04B28/04;C04B24/02;C04B24/12;C04B24/18;C04B24/38;C04B28/02;B01D19/04 | 主分类号 | C04B28/04 |
| 代理机构 | Curatolo Sidoti Co., LPA | 代理人 | Curatolo Sidoti Co., LPA ;Curatolo Joseph G.;Sidoti Salvatore A. |
| 主权项 | 1. Method for producing a hydraulic binder, comprising contacting a composition comprising cement clinker, before, during or after a grinding procedure, with (a) a defoaming agent and (b) 0.0005% to 2% by weight, based on the total composition, of at least one air-introducing compound, characterized in that the defoaming agent (a) comprises 0.0001% to 0.5% by weight, based on the total composition, of at least one defoaming agent of the formula R10—(CmH2m—O—)x—(CdH2d—O—)c—H (I) where R10 is a branched or unbranched C4 to C20 alkyl radical, m for each (CmH2m—O—) unit independently of one another is identical or different and is 2 or 3, d for each (CdH2d—O—) unit independently of one another is identical or different and is an integer between 4 and 20, x is an integer between 2 and 20 and c is an integer between 1 and 5, and the ratio of (a) to (b) is between 1:1 to 1:200. | ||
| 地址 | Trostberg DE | ||