| 发明名称 | Defoaming compositions and processes for cementing applications | ||
| 摘要 | Cement compositions and processes for reducing air entrainment in a cement composition generally include mixing a hydraulic cement with a defoamer composition including an organic acid ester of a polyoxyethylene-polyoxypropylene block copolymer. | ||
| 申请公布号 | US9475975(B2) | 申请公布日期 | 2016.10.25 |
| 申请号 | US201113036397 | 申请日期 | 2011.02.28 |
| 申请人 | Kemira Oyj | 发明人 | Mahmoudkhani Amir H.;Wilson Robert E.;Bava Luciana;Rocker Jacob A. |
| 分类号 | C09K8/00;C04B7/00;C04B16/00;C04B24/00;E21B33/13;C09K8/467;C04B24/32;C04B28/02;C09K8/48;C04B103/50 | 主分类号 | C09K8/00 |
| 代理机构 | King & Spalding | 代理人 | King & Spalding |
| 主权项 | 1. A process for reducing air entrainment in a cement composition, the process comprising:adding a defoaming composition to a cement composition, wherein the defoaming composition comprises an organic acid ester of a polyoxyethylene-polyoxypropylene block copolymer; andreducing air entrainment in the cement composition relative to a cement composition without the defoaming composition; wherein the polyoxyethylene-polyoxypropylene organic acid ester is a diesterification reaction product of a polyoxyethylene-polyoxypropylene block copolymer and oleic acid; andwherein the organic acid ester of the polyoxyethylene-polyoxypropylene block copolymer is of the general structure:wherein R is (CH2)7CH═CH(CH2)7CH3;a is 2 to 8; andb is 16 to 67. | ||
| 地址 | Helsinki FI | ||