Patent No. US 6,645,927 B1: German researchers for Clariant GmbH patented a coated bleach activator granule process. The process includes forming a mixture of at least one bleach activator, a granulating auxiliary and additives; agglomerating the mixture into activator base granules; coating the granules with a melt of a coating substance and thermally conditioning the coated granules with a heat treatment.
Clariant Patents Bleach Activator Granules
Published November 14, 2005
blog comments powered by Disqus