Sodium Lauryl Sulphate The Berolan GmbH produces dry mortar additives on basis of sodium lauryl sulphate.
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Gypsum set accelerator and method of making the same The accelerator composition includes a vibratory ball milled mixture of calcium sulfate dihydrate and a surfactant. The composition is prepared by subjecting the mixture to the high-frequency, low-impact grinding action of a vibratory ball mill. The resultant composition has a potency superior to that of conventional gypsum set accelerators. Suitable surfactants are anionic (sodium lauy sulfate), cationic (starch derivatives), or nonionic (ethoxylated nonylphenols).
Publisher: National Gypsum Properties LLC, 2001. US6221151 (Equivalent: EP1204614) Cat: Patents: Gypsum Set Accelerators