Dialkyl-phosphate-containing detergent compositions
Реферат: A detergent composition comprises, by weight (a) 1 part of a dialkyl orthophosphate of formula <FORM:1022050/C4-C5/1> wherein R1 and R2 are each C1-20-alkyl groups together containing 17-23 carbon atoms and X is an alkali metal, ammonium or amine (including triethanolamine radical, and (b) 2-20 parts of a detergent builder, e.g. sodium or potassium pyro- or tripoly-phosphate, sodium hexameta-phosphate, soda ash, sodium silicate, and salts of ethylenediamine tetracetic and nitrilotriacetic acids. The dialkyl phosphates (a), of which sodium didecyl orthophosphate is the preferred example, perform synergistically when sodium lauryl sulphate or dodecylbenzene sulphonate are present and are also stated to be biodegradable. Sodium sulphate and carboxymethyl cellulose, chlorinated trisodium phosphate, alkali metal chlorocyanurates, hypochlorites and perborates, perfume and optical brighteners may also be included, and the compositions may be produced by spray-drying.
Detergent composition having controlled density
Номер патента: CA1039609A. Автор: Oskar K. Wack. Владелец: Procter and Gamble Co. Дата публикации: 1978-10-03.