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Root > Materials Chemistry > Patents > Gypsum Set Retarders
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Retarder-Accelerator Combination
Described is a method of controlling the hydration behaviour of gypsum in the manufacture of composite materials, in particular board. The retarder-accelerator combination comprises a calcium salt of an N-polyoxymethylene amino acid and potassium sulfate.
Hrsg.: Sattler et al (Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V., Munich, DE), 1998, US5846317

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