Granular bleach activators having improved solubility profiles
AssigneeThe Procter & Gamble Company
InventorsScott William Capeci, Michael Steven Gibson, Victoria Ann Majerczak
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Abstract
A granular bleach activator extrudate that has a size and shape that is within a relatively narrow distribution range. The bleach activator exhibits improved solubility, and reduced product separation when incorporated into a granular detergent composition. Also provided are granular detergent compositions comprising a detersive surfactant and the bleach activator extrudates. Methods for forming the extruded bleach activator particles are also provided.
Claims11
A granular bleach activator extrudate in the form of a substantially cylindrically-shaped particle having a mean extrudate length of from about 450 microns to about 3500 microns and a mean extrudate diameter of from about 450 microns to about 850 microns and having a geometric standard deviation of length between about 1.0 and 1.4, said bleach activator selected from the group consisting of:
- a) activators having the general formula:
- wherein R is an alkyl group containing from about 5 to about 18 carbon atoms, L is a leaving group;
- b) benzoxazin-type bleach activators of the general formula:
- wherein R1 is H, alkyl, alkaryl, aryl, arylalkyl, and wherein R2, R3, R4, and R5 may be the same or different substituents selected from H, halogen, alkyl, alkenyl, aryl, hydroxyl, alkoxyl, amino, alkylamino, COOR6 (wherein R6 is H or an alkyl group) and carbonyl functions;
- c) N-acyl caprolactam bleach activators of the formula:
- wherein R6 is H or an alkyl, aryl, alkoxyaryl or alkaryl group containing from 1 to 12 carbons;
- and
- d) mixtures thereof.
Dependencies are inferred from the claim text.