| 摘要 |
<p>Granules of parahydroxybenzoic acid or a parahydroxybenzoic ester which are extremely inhibited from flying off or caking; and a process for producing the granules. The granules of parahydroxybenzoic acid or an ester thereof have an average particle diameter of 150 νm or larger and a hardness of 10 to 3,000 g. The process comprises compacting a dry powder of parahydroxybenzoic acid or an ester thereof to form a molding, crushing the molding, and classifying the resultant particles.</p> |
