发明授权
EP1019334B1 USE OF HYDROXYLAMINES TO ENHANCE THE STRENGTH OF PORTLAND CEMENT COMPOSITIONS
有权
HYDROXLYAMINEN用于改进硅酸盐水泥组合物的强度
- 专利标题： USE OF HYDROXYLAMINES TO ENHANCE THE STRENGTH OF PORTLAND CEMENT COMPOSITIONS
- 专利标题（中）： HYDROXLYAMINEN用于改进硅酸盐水泥组合物的强度
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申请号： EP98944882.4申请日： 1998-09-17
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公开(公告)号： EP1019334B1公开(公告)日： 2005-12-28
- 发明人: CHEUNG, Josephine Ho-wah , MYERS, David, Francis
- 申请人： W.R. GRACE & CO.-CONN.
- 申请人地址： 7500 Grace Drive Columbia, Maryland 21044 US
- 专利权人： W.R. GRACE & CO.-CONN.
- 当前专利权人： W.R. GRACE & CO.-CONN.
- 当前专利权人地址： 7500 Grace Drive Columbia, Maryland 21044 US
- 代理机构： Senior, Alan Murray
- 优先权： US60815P 19971001; US85379 19980526
- 国际公布： WO1999016724 19990408
- 主分类号： C04B24/12
- IPC分类号： C04B24/12 ; C04B28/04
摘要：
This invention relates to enhancing the compressive strength of cements after 1, 3, 7 and 28 days following hydration and to improving porosity and finished surfaces of the hardened cements and concretes made therefrom. The improved cements are prepared using certain hydroxylamine additives in amounts of up to 0.1 % which preferably are added during grinding of the cement in which case the amines further act as grinding aids.
公开/授权文献
- EP1019334A1 STRENGTH ENHANCED PORTLAND CEMENT COMPOSITIONS 公开/授权日：2000-07-19
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