Michael Schinabeck,Frank Dierschke,Manfred Bichler,Silke Flakus-Taube,Stefan Friedrich
申请号：
US13989131
公开号：
US08906986B2
申请日:
2011.11.29
申请国别(地区):
US
年份:
2014
代理人:
摘要：
Claimed is a cationic copolymer and also its use as an admixture agent for building product systems, especially based on calcium sulfate. The copolymers of the invention effectuate accelerated setting behavior in clay-containing as well as non-clay-containing gypsums and they enable uncurtailed water reduction performance by dispersant agents used at the same time with the copolymers. The clay fractions in the gypsum system are masked by the cationic copolymer, and so the building product mixture exhibits properties of a building product mixture not containing clay. The copolymers are used as a formulation and also together with retarders.
