Birch, Stewart, Kolasch & Birch, LLP
Process for preparing detergent compositions having high bulk density
A method for producing detergent granules, includes the step of dry-neutralizing a liquid acid precursor of a non-soap, anionic surfactant with a water-soluble, solid, alkali inorganic substance. In this method, a dry-neutralizing step is carried out in the presence of 0.1 to 1.0 mol of an inorganic acid per mol of the liquid acid precursor of a non-soap, anionic surfactant. The above detergent granules have the features of extremely low tackiness of the granules and containing larger number of micropores. By using the detergent granules, a high-bulk density detergent composition having a small particle size can be obtained at high yields.
Kao Corporation
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inventional inventional inventional
Jun Hideichi Hiroyuki
Saito Nitta Yamashita