发明名称 |
CARBOXYLIC ACID DERIVATIVES, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF. |
摘要 |
<p>The invention relates to carboxylic acid derivatives which are obtained by reacting an unsaturated dicarboxylic acid anhydride (A) with a hydrophobic reactive component (B) that contains at least one group reacting to carboxylic acid anhydrides and has a mean molecular weight of 200 to 50,000 Dalton. The inventive carboxylic acid derivatives are excellent as a substance for preventing efflorescence on surfaces of hardened cementious construction materials and/or rendering the corresponding cementious systems hydrophobic. Furthermore, said cementious products absorb considerably smaller amounts of water as a result of the inventive additives such that frost damage and premature rusting of the reinforcing steel can be significantly reduced.</p> |
申请公布号 |
MX2008005361(A) |
申请公布日期 |
2009.03.02 |
申请号 |
MX20080005361 |
申请日期 |
2006.10.25 |
申请人 |
CONSTRUCTION RESEARCH & TECHNOLOGY GMBH |
发明人 |
STEFAN INGRISCH;GERHARD ALBRECHT;STEFAN THALER;MATHIAS BAUER |
分类号 |
C07C69/96 |
主分类号 |
C07C69/96 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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