Patent No. US 6,750,193 B1: Research-ers for Henkel, Düsseldorf, Germany, patented a process to produce multiphase cleaning tablets. It comprises tabletting a particulate premix to form tablets with a cavity; preparing a melt suspension or emulsion from a coating material; filling the cavity tablets with the melt suspension or emulsion and cooling and optionally treating the filled cleaning tablets.
Henkel Patents Process To Make Cleaning Tablets
Published November 22, 2005
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