US4891147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable liquid detergent containing insoluble oxidant
Assignee: Clorox Co
•
Filing: 1988-11-25
•
Granted: 1990-01-02
•
Expires: 2008-11-25
Abstract
Abstract The invention provides a phase stable liquid detergent containing at least one insoluble oxidant, comprising: (a) a liquid phase which comprises (i) an effective amount of at least one surfactant selected from the group consisting of anionic, nonionic, cationic, amphoteric, zwitterionic surfactants, and mixtures thereof; (ii) a liquid carrier therefore, comprising organic solvents, water, or a mixture thereof; and (b) an effective amount of a water insoluble oxidant stably suspended in said liquid phase, which maintains oxidative stability, said water insoluble oxidant being an alkaline earth metal peroxide or a Group IIB peroxide.
Inventors
- 👤 Robert L. Gray
- 👤 David Peterson
- 👤 Loren Chen
- 👤 Gregory van Buskirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:02
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3947; C11D17/00; C11D17/0008; C11D17/0026; C11D3/3942
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
94 words
A phase stable liquid detergent containing at least one insoluble oxidant, comprising: (a) a liquid phase which comprises: (i) an effective amount of at least one surfactant selected from the group consisting of anionic, nonionic, cationic, amphoteric, zwitterionic surfactants, and mixtures thereof; (ii) a liquid carrier therefor, comprising a water soluble or dispersible organic solvent, water, or a mixture thereof; (b) an effective amount of a water insoluble oxidant stably suspended in said liquid phase, which maintains oxidative stability, said water insoluble oxidant being an alkaline earth metal peroxide or a Group IIB peroxide.
Claim 2
Dependent Claim
94 words
A phase stable liquid detergent containing at least one insoluble oxidant, comprising: (a) a liquid phase which comprises: (i) an effective amount of at least one surfactant selected from the group consisting of anionic, nonionic, cationic, amphoteric, zwitterionic surfactants, and mixtures thereof; (ii) a liquid carrier therefor, comprising a water soluble or dispersible organic solvent, water, or a mixture thereof; (b) an effective amount of a water insoluble oxidant stably suspended in said liquid phase, which maintains oxidative stability, said water insoluble oxidant being an alkaline earth metal peroxide or a Group IIB peroxide.
Claim 3
Dependent Claim
25 words
The liquid detergent of claim 1 wherein said oxidant is selected from the group consisting of calcium peroxide, magnesium peroxide, zinc peroxide, and mixtures thereof.
Claim 4
Dependent Claim
12 words
The liquid detergent of claim 2 wherein the oxidant is calcium peroxide.
Claim 5
Dependent Claim
12 words
The liquid detergent of claim 2 wherein the oxidant is magnesium peroxide.
Claim 6
Dependent Claim
12 words
The liquid detergent of claim 2 wherein the oxidant is zinc peroxide.
Claim 7
Dependent Claim
40 words
The liquid detergent of claim 1 further comprising (c) at least one adjunct: anti-oxidants, enzymes, enzyme stabilizers, dyes, pigments, fluorescent whitening agents, anti-redeposition agents, foam boosters, anti-foaming agents, buffers, chelating agents, bleach activators, oxidant stabilizers, thickeners, fragrances, and mixtures thereof.
Claim 8
Dependent Claim
14 words
The liquid detergent of claim 6 wherein said adjunct of (c) is an anti-oxidant.
Claim 9
Dependent Claim
26 words
The liquid detergent of claim 7 wherein said anti-oxidant is selected from the group consisting of alkali metal or ammonium thiosulfates, bisulfites, sulfites, and mixtures thereof.
Claim 10
Dependent Claim
14 words
The liquid detergent of claim 8 wherein said anti-oxidant is an alkali metal sulfite.
Claim 11
Dependent Claim
24 words
The liquid detergent of claim 7 wherein the proportions of the components are (a) 0.1-90%. of (i), 1-99% of (ii); (b) 0.1-50%; (c) 0-30%.
Claim 12
Dependent Claim
98 words
A phase stable liquid detergent containing an oxidant insoluble therein during storage, but which released active oxygen during use in aqueous wash media, said detergent comprising: (a) a liquid phase which comprises (i) a mixture of anionic surfactants; or an anionic and a nonionic surfactant; and (ii) a fluid carrier therefor which comprises water, a water soluble or dispersible organic solvent, or a mixture thereof; and (b) an effective amount of an insoluble oxidant stably suspended in said liquid phase, which oxidant maintains oxidative stability, said oxidant being an alkaline earth metal peroxide or a Group IIB peroxide.
Claim 13
Dependent Claim
98 words
A phase stable liquid detergent containing an oxidant insoluble therein during storage, but which released active oxygen during use in aqueous wash media, said detergent comprising: (a) a liquid phase which comprises (i) a mixture of anionic surfactants; or an anionic and a nonionic surfactant; and (ii) a fluid carrier therefor which comprises water, a water soluble or dispersible organic solvent, or a mixture thereof; and (b) an effective amount of an insoluble oxidant stably suspended in said liquid phase, which oxidant maintains oxidative stability, said oxidant being an alkaline earth metal peroxide or a Group IIB peroxide.
Claim 14
Dependent Claim
23 words
The liquid detergent of claim 11 wherein the component (i) is a mixture of anionic surfactants selected from sulfonated and sulfated anionic surfactants.
Claim 15
Dependent Claim
23 words
The liquid detergent of claims 12 wherein the anionic surfactant comprises a mixture of an alkyl benzene sulfonate and an alkyl ethoxylated sulfate.
Claim 16
Dependent Claim
11 words
The liquid detergent of claim 11 further comprising (c) an enzyme.
Claim 17
Dependent Claim
11 words
The liquid detergent of claim 14 further comprising (d) an anti-oxidant.
Claim 18
Dependent Claim
14 words
The liquid detergent of claim 15 wherein said anti-oxidant is an alkali metal sulfite.
References Cited (Backward Citations)
US2288410A
Cited
GB976511A
Cited
GB1002893A
Cited
US3230171A
Cited
US3259584A
Cited
US3251780A
Cited
US3332882A
Cited
US3382182A
Cited
US3706670A
Cited
US3852210A
Cited
US3970575A
Cited
US3996151A
Cited
US4130501A
Cited
US4306987A
Cited
US4347149A
Cited
US4525291A
Cited
US4399633A
Cited
US4430236A
Cited
US4470919A
Cited
US4421664A
Cited
US4618446A
Cited
US4620935A
Cited
FR2573452A1
Cited
US4699623A
Cited
US4786431A
Cited
EP0209228B1
Cited
DE3534524A1
Cited
EP0246985A2
Cited
US4784787A
Cited
EP0279282A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-01 | 1993-07-03 | 1994-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-01 | 1997-07-03 | 1998-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-01 | 2001-07-03 | 2002-01-02 | $7700.00 | Window Closed / Lapsed |