EP0373743A2
Expired / Lapsed
EP
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Detergent containing stable bleach activator granules
Assignee: Clorox Co
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Filing: 1989-06-22
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Granted: —
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Expires: 2009-06-22
Abstract
Abstract The present invention provides stable bleach activator granules comprising: a) a peroxygen bleach activator having the structure: wherein R is C 1-20 branched or straight chain alkyl, alkoxylated alkyl, cycloalkyl, alkenyl, aryl, substituted aryl, alkylaryl; R and R are independently H, C 1 -4 alkyl, aryl; and L is a leaving group; b) a pliable binding material selected from materials having a melting completion temperature of greater than about 40° C; and, optionally, c) a filler material. These bleach activator granules are combined with a detergent base which contains an oxidant bleach to provide an activated oxidant detergent composition.
Inventors
- 👤 Steven A. Bolkan
- 👤 David L. Deleeuw
- 👤 Kelly J. Brodbeck
- 👤 Dale S. Steichen
- 👤 Keven J. Brodbeck
- 👤 Bruce B. Strand
- 👤 Richard J.V. Suk
- 👤 Kathleen D. Szuch
- 👤 Alfred G. Zielske
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 15:55
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3935; C11D3/3907
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
76 words
Stable bleach activator granules comprising: a) a peroxygen bleach activator having the structure: wherein R is C 1 - 20 branched or straight chain alkyl, alkoxylated alkyl, cycloalkyl, alkenyl, aryl, substituted aryl, alkylaryl; R and R are independently H, C 1 - 4 alkyl, aryl; and L is a leaving group; b) a pliable binding material selected from materials having a melting completion temperature of greater than about 40° C; and, optionally, c) a filler material.
Claim 2
Dependent Claim
76 words
Stable bleach activator granules comprising: a) a peroxygen bleach activator having the structure: wherein R is C 1 - 20 branched or straight chain alkyl, alkoxylated alkyl, cycloalkyl, alkenyl, aryl, substituted aryl, alkylaryl; R and R are independently H, C 1 - 4 alkyl, aryl; and L is a leaving group; b) a pliable binding material selected from materials having a melting completion temperature of greater than about 40° C; and, optionally, c) a filler material.
Claim 3
Dependent Claim
19 words
The bleach activator granules of claim 1 wherein the proportions of a:b:c range from about 99:0.5:0 to about 50:25:25.
Claim 4
Dependent Claim
33 words
The bleach activator granules of claim 1 or claim 2 wherein the activator of a) has an leaving group, L, the conjugate acid whereof has a pK a of about 4 to 20.
Claim 5
Dependent Claim
40 words
The bleach activator granules of any of claims 1 to 3 wherein the pliable binding material of b) is selected from the group consisting of anionic surfactants, nonionic surfactants, water soluble organic polymers, water dispersible organic polymers, and mixtures thereof.
Claim 6
Dependent Claim
23 words
The bleach activator granules of any of claims 1 to 4 wherein the filler material of c) is an inorganic or organic filler.
Claim 7
Dependent Claim
25 words
The bleach activator granules of claim 5 wherein the filler material is an inorganic filler selected from alkali metal and alkaline earth sulfates and chlorides.
Claim 8
Dependent Claim
144 words
The bleach activator granules of claim 1 wherein the activator has a leaving group, L, is selected from the group consisting of: (i) wherein Y and Z are individually H, S0 3 M, C0 2 M, SO 4 M, OH, halo substituent, OR 1 , R 2 , NR5 X, and mixtures thereof, wherein M is an alkali metal or alkaline earth metal counterion, R 1 of OR 1 is C 1-20 alkyl, R 2 is C 1-6 alkyl, R 3 of NR3 is C 1-30 alkyl and X is a counterpart ion thereto, and Y and Z can be the same or different; ( ii) halide; (iii) -ONR 4 , wherein R 4 contains at least one carbon which is singly or double bonded directly to N; ( iv) wherein R 5 is a C 1-10 o alkyl; and ( v) mixtures thereof
Claim 9
Dependent Claim
40 words
The bleach activator granules of claim 1 wherein the activator has the structure or wherein R is C 1-20 alkyl, and L is a leaving group selected from the group consisting essentially of substituted phenol, oxime, amine oxide, and oxyimide.
Claim 10
Dependent Claim
94 words
The bleach activator granules of claim 8 wherein the precursor has the structure and Y and Z are separately selected from H, S0 3 M, CO 2 M, SO 4 M, OH, halo substituent, OR 1 , R 2 , X, and mixtures thereof, wherein M is an alkali metal or alkaline earth metal counterion, R 1 of OR 1 is C 1-20 alkyl, R 2 is C 1-6 alkyl, R 3 of is C 1-20 alkyl, and X is a counterpart ion thereto, and Y and Z can be the same of different.
Claim 11
Dependent Claim
18 words
The activator of claim 9 wherein the precursor has the structure: or or or or or or or
Claim 12
Dependent Claim
19 words
The bleach activator granules of chain 1 further comprising d) a bleach-effective amount of a source of hydrogen peroxide.
Claim 13
Dependent Claim
19 words
The bleach activator granules of chain 1 further comprising d) a bleach-effective amount of a source of hydrogen peroxide.
Claim 14
Dependent Claim
32 words
The bleach activator granules of claim 11 wherein said source of hydrogen peroxide is selected from the group consisting of alkali metal perborates, alkali metal percarbonates, hydrogen peroxide adducts and mixtures thereof.
Claim 15
Dependent Claim
76 words
Stable bleach activator granules comprising: a) a peroxygen bleach activator having the structure: wherein R is C 1-20 branched or straight chain alkyl, cycloalkyl, alkenyl, aryl, alkylaryl; R and R are independently H, C 1-4 alkyl; and L is a leaving group; b) an organic binding material; wherein said granules are approximately cyclindrical or spherical, and have a diameter of about 25 to 2,000 microns, and dissolve, in water, within about 10 minutes at 21 C.
Claim 16
Dependent Claim
76 words
Stable bleach activator granules comprising: a) a peroxygen bleach activator having the structure: wherein R is C 1-20 branched or straight chain alkyl, cycloalkyl, alkenyl, aryl, alkylaryl; R and R are independently H, C 1-4 alkyl; and L is a leaving group; b) an organic binding material; wherein said granules are approximately cyclindrical or spherical, and have a diameter of about 25 to 2,000 microns, and dissolve, in water, within about 10 minutes at 21 C.
Claim 17
Dependent Claim
16 words
The bleach activator granules of claim 13 wherein said binder of b) is an organic material.
Claim 18
Dependent Claim
33 words
The bleach activator granules of claim 14 wherein said organic material is selected from the group consisting of anionic surfactants, nonionic surfactants, water soluble organic polymers, water dispersible organic polymers, and mixtures thereof.
Claim 19
Dependent Claim
123 words
An activated oxidant detergent comprising: a) bleach activator granules comprising: i) a peroxygen bleach activator having the structure: wherein R is C 1-20 branched or straight chain alkyl, cycloalkyl, alkenyl, aryl, alkylaryl; R and R" are independently H, C 1 - 4 alkyl; and L is a leaving group; ii) a pliable binding material selected from materials having a melting completion temperature of greater than about 40 C; and, optionally, iii) a filler material; b) a detergent base which comprises: i) builders; ii) fillers; iii) a surfactant selected from the group consisting of anionic, nonionic, cationic, amphoteric, zwitterionic surfactants, and mixtures thereof; and c) a bleach-effective amount of a source of hydrogen peroxide, which acts in combination with the activator granules of a).
Claim 20
Dependent Claim
123 words
An activated oxidant detergent comprising: a) bleach activator granules comprising: i) a peroxygen bleach activator having the structure: wherein R is C 1-20 branched or straight chain alkyl, cycloalkyl, alkenyl, aryl, alkylaryl; R and R" are independently H, C 1 - 4 alkyl; and L is a leaving group; ii) a pliable binding material selected from materials having a melting completion temperature of greater than about 40 C; and, optionally, iii) a filler material; b) a detergent base which comprises: i) builders; ii) fillers; iii) a surfactant selected from the group consisting of anionic, nonionic, cationic, amphoteric, zwitterionic surfactants, and mixtures thereof; and c) a bleach-effective amount of a source of hydrogen peroxide, which acts in combination with the activator granules of a).
Claim 21
Dependent Claim
34 words
The activated oxidant detergent of claim 16 further comprising d) a detergent adjunct selected from the group consisting of enzymes, dyes, pigments, fluorescent whitening agents, anti-redeposition agents, anti-foaming agents, buffers, fragrances, and mixtures thereof.
Claim 22
Dependent Claim
23 words
The activated oxidant detergent of claim 16 wherein said surfactant of b)iii) is a nonionic surfactant, an anionic surfactant, or a mixture thereof.
Claim 23
Dependent Claim
25 words
The activated oxidant detergent of claim 18 wherein said surfactant of b)iii) is an anionic surfactant selected from the group consisting of sulfonated aromatic surfactants.
Claim 24
Dependent Claim
17 words
The activated oxidant detergent of claim 19 wherein said surfactant is a C 6-18 linear alkylbenzene sulfonate.
Claim 25
Dependent Claim
17 words
The activated oxidant detergent of claim 20 wherein said surfactant is a C 12-14 linear alkylbenzene sulfonate.
Claim 26
Dependent Claim
12 words
The activated oxidant detergent of claim 16 further comprising a chelating agent.
Claim 27
Dependent Claim
21 words
The activated oxidant detergent of claim 22 wherein said chelating agent is selected from aminopolyphosphonates, polyphosphonates, ethylenediaminetetraacetic acid, and mixtures thereof.
Claim 28
Dependent Claim
14 words
The activated oxidant detergent of claim 23 wherein said chelating agent is an aminopolyphosphonate.
Claim 29
Dependent Claim
34 words
A method for the preparation of stable bleach activator granules as claimed in claim 1 characterised in that the components of the granules are combined and formed into granules by a granule forming process.
References Cited (Backward Citations)
No citation records indexed.
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