| 摘要 |
<p>1,178,241. Peroxy compound detergents. LAPORTE CHEMICALS Ltd. 20 Jan., 1967 [4 Feb., 1966], No. 5039/66. Heading C5D. A particulate detergent composition comprises a major proportion by weight of a homogeneous detergent base having a normal size distribution and consisting of substantially regular particles and distributed therein a minor proportion by weight of an active oxygen-containing material consisting essentially of substantially regular particles of which at least 80% by weight have diameters which vary by no more than 25% from the average particle diameter of the material, having a bulk density of 100% to 300% of that of the detergent base and having an average particle diameter of (2À5PX) (1+B o - B d ) mm. where X has a value of 0À4-0À7 and where P = particle size of detergent base, B o and Bd=bulk density of oxygencontaining compound and detergent base, respectively. The oxygen - containing compounds are preferably alkali metal percarbonates or perborates.</p> |
