Process for improving flowability of detergents

Claim 1

A PROCESS FOR IMPROVING THE FLOWABILITY OF A PARTICULATE ANIONIC OR NONIONIC BUILT DETERGENT COMPOSITION CONTAINING AN OILY DETERGENT-IMPROVING ADDITIVE COMPRISING: I. PREPARING A SPRAY-DRIED PARTICULATE DETERGENT COMPOSITION COMPRISING ABOUT 0.5% TO ABOUT 35% OF AN ANIONIC DETERGENT OR NONIONIC DETERGENT SELECTED FROM THE GROUP CONSISTING OF (1) WATER-SOLUBLE ETHYLENE OXIDE CONDENSATES OF A BASE FORMED BY CONDENSING PROPYLENE OXIDE WITH PROPYLENE GLYCOL, (2) COMPOUNDS FORMED BY THE SIMULTANTEOUS POLYMERIZATION OF PROPYLENE OXIDE AND ETHYLENE OXIDE, AND (3) ETHOXYLATES OF PRIMARY OR SECONDARY ALCOHOLS, SAID NONIONIC HAVING DETERGENT PROPERITIES, AND ABOUT 25% TO ABOUT 80% OF A DETERGENT BUILDER, II. INITMATELY BLENDING WITH SAID DETERGENT COMPOSITION ABOUT 0.5% TO ABOUT 15% BY WEIGHT, WHOLE COMPOSITION BASIS, OF A PARTUICULATE WATER-SOLUBLE SILICEOUS FLOWPROMOTING AGENT SELECTED FROM THE GROUP CONSISTING OF SILICA AEROGELS, SILICA XEROGELS, DIATOMACEOUS EARTH, SODIUM SILICO ALUMINATE, CALCIUM ALUMINO SILICATE, MAGNESIUM SILICATE, AND MIXTURES THEREOF, SAID WATER-INSOLUBLE SILICEOUS SUBSTANCES HAVING A PORE VOLUME OF AT LEAST 2 MILLILITERS PER GRAM, III. BLENDING WITH SAID OLEOPHILIC MIXTURE ABOUT 1% TO ABOUT 35% BY WEIGHT, WHOLE COMPOSITION BASIS, AND SUFFICIENT TO IMPROVE THE DETERGENT CHARACTERISITICS OF THE DETERGENT, OF A DETERGENCY IMPROVER COMPRISING A NON-AQUEOUS OILY LIQUID SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF: A. CONDENSATE OF ETHYLENE OXIDE AND MONOHYDRIC PRIMARY OR SECONDARY ALCOHOLS HAVING ABOUT 8 TO 16 CARBON ATOMS AND HAVNG AN ETHYLENE OXIDE CONTENT OF ABOUT 10% TO ABOUT 51%, B. POLYMERS OF PROPYLENE OXIDE HAVING A MOLECULAR WEIGHT OF ABOUT 1,500 TO ABOUT 1,800, C. CONDENSATES OF ETHYLENE OXIDE AND POLYMERS OF PROPYLENE OXIDE AND POLYMERS OF PROPYLENE OXIDE HAVING A MOLECULAR WEIGHT OF ABOUT 1500 TO ABOUT 1800, SAID CONDENSATES HAVING FROM ABOUT 10% TO ABOUT 20% ETHYLENE OXIDE BY WEIGHT IN THE MOLECULE, D. DIALKY PHATHATES WHEREIN THE ALKYL GROUP HAS FROM 1-9 CARBON ATOMS; SAID PARTICLES OF FLOW-PROMOTING AGENT HAVING ABSORBED THEREON SAID OILY DETERGENCY IMPROVER, AND SAID DETERGENCY IMPROVER AND SAID FLOW-PROMOTING AGENT BEING EXTERNAL TO THE PARTICLES OF SAID PARTICLE DETERGENT BASE COMPOSITION.