PROCESS FOR PRODUCTION OF AMINE OXIDE POWDER OR GRANULE

摘要

Disclosed is a process for efficiently producing an amine oxide powder or granule having excellent solubility, which comprises mixing 5 to 80 mass% of (a) an aqueous solution, a suspension or a paste containing 50 to 95 mass% of an amine oxide represented by general formula (1) with 95 to 20 mass% of (b) a powder comprising a polymeric compound which contains a constituent unit derived from a compound having a carboxylic acid group and/or a carboxylic anhydride residue and a constituent unit derived from an aliphatic hydrocarbon having 3 to 10 carbon atoms and having a polymerizable unsaturated bond in a total amount of 80 mol% or more relative to the total amount of all constituent units.  Also disclosed is a detergent composition for an automatic dishwasher, which comprises the amine oxide powder or granule. [In the formula, R1 represents a hydrocarbon group having 3 to 8 carbon atoms; R2 and R3 independently represent an alkyl group having 1 to 3 carbon atoms, or the like; R4 represents an alkanediyl group having 2 to 3 carbon atoms; X represents an amide group or an ether group; and n represents a number of 0 or 1.]