CARBOXYLIC ACID DERIVATIVES, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF
摘要
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.
申请公布号
WO2007048396(A2)
申请公布日期
2007.05.03
申请号
WO2006DE01885
申请日期
2006.10.25
申请人
CONSTRUCTION RESEARCH & TECHNOLOGY GMBH;INGRISCH, STEFAN;ALBRECHT, GERHARD;THALER, STEFAN;BAUER, MATHIAS