发明名称 |
Defoamer for water reducer admixture |
摘要 |
An exemplary admixture system for cementitious compositions, comprises a polycarboxylic acid type water reducer and a tertiary amine defoamer having an average molecular weight of 100-1500 and more preferably 200-750. The defoamer permits a stable admixture formulation and helps to achieve a controllable level of entrained air in a concrete mix. Cementitious compositions and methods for modifying the same, using the tertiary amine defoamers, are also described herein.
|
申请公布号 |
US2004149175(A1) |
申请公布日期 |
2004.08.05 |
申请号 |
US20030475062 |
申请日期 |
2003.10.15 |
申请人 |
ZHANG XUAN;CHEUNG JOSEPHINE HO-WAH;JEKNAVORIAN ARA AVEDIS |
发明人 |
ZHANG XUAN;CHEUNG JOSEPHINE HO-WAH;JEKNAVORIAN ARA AVEDIS |
分类号 |
C04B24/12;C04B24/26;C04B24/32;C04B28/02;C04B40/00;C08F8/32;(IPC1-7):C08L1/00;C08J3/00;C08K3/00;C04B14/00 |
主分类号 |
C04B24/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|