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US 5,399,746 AGranted
Diquaternary bleach activators and compositions containing them
AssigneeWitco Corporation
InventorsPhilip H. Steiger, Shaun F. Clancy, Owen Portwood
Life of this patent
Estimating the term…
Abstract
Diquaternary ammonium esters useful as bleach activators are disclosed, as are bleach compositions comprising such an ester and a peroxygen compound which yields peroxide in solution.
Claims11
A water-soluble compound of the formula (1), (2), or (3) ##STR2## wherein A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5 and A.sup.6 are the same or different, and each represents alkyl or alkoxyalkyl containing up to 6 carbon atoms, provided that in formula (1), one of A.sup.1 and A.sup.4 is optionally --(CH.sub.2).sub.1-4 CO.sub.2.sup.- or --(CH.sub.2).sub.1-4 SO.sub.3.sup.- ;
- in formula (2), two of A.sup.1, A.sup.2, A.sup.4, and A.sup.5 are selected from the group consisting of --(CH.sub.2).sub.1-4 CO.sub.2.sup.- and --(CH.sub.2).sub.1-4 SO.sub.3.sup.- ;
- and in formula (3) three or four of A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5, and A.sup.6 are selected from the group consisting of --(CH.sub.2).sub.1-4 CO.sub.2.sup.- and --(CH.sub.2).sub.1-4 SO.sub.3.sup.- ;
- X.sup.-1 is an anion;
- M.sup.+1 is a cation;
- a is 1 to 4;
- b is 1 to 4;
- c is 5 to 8;
- x is 1 or 2 and is selected so that the compound of formula (1) is ionically neutral;
- and
- m is 1 or 2 and is selected so that the compound of formula (3) is ionically neutral.
7 more elements
Dependencies are inferred from the claim text.