Free flowing phosphate ester compositions for post addition to detergents
AssigneeColgate-Palmolive Company
InventorHjorth Rasmussen
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Abstract
Free-flowing, phosphate ester compositions for post addition to detergents are provided which comprise a homogeneous mixture of ethoxylated higher alkyl mono- and di- esters of phosphoric acid and including a mixture of mono- and di- lower alkyl esters of phosphoric acid in combination with finely divided silica having a surface area of over 10 square meters per gram. These compositions are useful additives for detergent compositions to give them a laundry softening capability.
Claims4
A free flowing particulate phosphate ester composition useful as an additive for particulate detergents to impart to them laundry softening properties which comprises a homogeneous mixture of 0.1 to 4 parts of R.sup.1 O(CH.sub.2 CH.sub.2 O).sub.m PO(OM).sub.2 wherein R.sup.1 is a higher alkyl of 14 to 20 carbon atoms, m is from 1 to 6 and M is an alkali metal or ammonium, 0.1 to 3 parts of [R.sup.1 O(CH.sub.2 CH.sub.2 O).sub.m ].sub.2 -POOM, 0.1 to 2 parts of R.sup.2 OPO(OM).sub.2 wherein R.sup.2 is alkyl of 6 to 10 carbon atoms and 0.1 to 1 part of (R.sup.2 O).sub.2 POOM, said mixture of phosphate esters having a melting point and/or softening point lower than 45.degree. C. and from 0.1 to 5 parts of finely divided silica, having a surface area of oven ten square meters per gram with the amount of silica present being from 5 to 100% the total amount of the mentioned phosphate esters.
Dependencies are inferred from the claim text.