Back to results
US 4,055,505 AGranted
Activated percompound bleaching compositions
AssigneeColgate-Palmolive Company
InventorFrederick W. Gray
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeColgate-Palmolive Company
InventorFrederick W. Gray
Estimating the term…
An activated percompound bleaching composition comprises a bleaching percompound, such as sodium perborate tetrahydrate, an activator for such percompound, such as 2-[bis(2-hydroxyethyl)amino]-4,6-dichloro-s-triazine and a molecular sieve zeolite, such as hydrated type 4A synthetic molecular sieve zeolite. In a preferred embodiment of the invention a mixture of the described activator and diacetyl dimethylglyoxime activator is employed and inorganic builder, salts such as sodium carbonate and sodium silicate, are present, together with inorganic filler salt, such as sodium sulfate. Also within the invention are detergent compositions containing the mentioned bleaching composition components with a synthetic organic detergent, such as sodium higher linear alkylbenzene sulfonate. Methods of bleaching and washing and bleaching with the described compositions are disclosed.
An activated percompound bleaching composition consisting essentially of, by weight, 5 to 75% of a bleaching percompound selected from the group consisting of inorganic percompounds and urea peroxide, 0.5 to 15% of an activator for such percompounds which activates the percompound to promote bleaching in an aqueous bleaching solution, said activator being selected from the group consisting of 2-[di(2-hydroxy-C.sub.1 -C.sub.5 alkyl) amino]-4,6-dihalo-s-triazine, 2,4-di-C.sub.1 -C.sub.4 alkoxy-6-halo-s-triazine and mixtures thereof, 5 to 75% of molecular sieve zeolite in the form of particles having a mean particle diameter in the range of 0.5 to about 12 microns which is selected from the group consisting of Type A, X, Y, L. mordenite and erionite zeolites, said zeolite containing from 1.5 to 36% by weight of water and having a cation selected from the group consisting of sodium, potassium, lithium, ammonium and hydrogen, 0 to 40% of a water-soluble synthetic organic detergent, 0 to 50% of a water-soluble alkali metal inorganic or organic builder salt and 0 to 50% of sodium sulfate or sodium chloride, said composition containing 0.1 to 1.5 parts of activator per part of percompound and 0.2 to 10 parts of molecular sieve zeolite per part of bleaching percompound and having a pH in the range of 8 to 12 in water.
A bleaching detergent composition consisting essentially of, by weight, 5 to 40% of a water-soluble synthetic organic detergent, 5 to 75% of a bleaching percompound selected from the group consisting of inorganic percompounds and urea peroxide, 0.5 to 15% of an activator for such percompounds which activates the percompound to promote bleaching in an aqueous bleaching solution, said activator being selected from the group consisting of 2-[di(2-hydroxy-C.sub.1 -C.sub.5 alkyl)amino]-4,6dihalo-s-triazine, 2,4-di-C.sub.1 -C.sub.4 alkoxy-6-halo-s-triazine and mixtures thereof, 5 to 75% of molecular sieve zeolite in the form of particles having a mean particle diameter in the range of 0.5 to about 12 microns which is selected from the group consisting of Type A, X, Y, L mordenite and erionite zeolites, said zeolite containing from 1.5 to 36% by weight of water and having a cation selected from the group consisting if sodium, potassium, lithium, ammonium and hydrogen, 0 to 50% of a water-soluble alkali metal inorganic or organic builder salt and 0 to 50% of sodium sulfate or sodium chloride, said composition containing 0.1 to 2 parts of synthetic detergent per part of percompound, 0.1 to 1.5 parts of activator per part of percompound and 0.2 to 10 parts of molecular sieve zeolite per part of bleaching percompound and having a pH in the range of 8 to 12 in water.
A method according to claim 15 wherein the bleaching detergent composition is that of claim 17.
Dependencies are inferred from the claim text.