US4430236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid detergent composition containing bleach
Assignee: Reckitt Benckiser LLC
•
Filing: 1981-06-22
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Granted: 1984-02-07
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Expires: 2001-06-22
Abstract
Abstract A single phase aqueous liquid laundry product containing a hydrogen peroxide bleach has a detergency effective amount of a nonionic surfactant or a mixture of a nonionic surfactant and an anionic surfactant and a brightening agent. In an embodiment the liquid product additionally contains a cationic fabric softener which provides for effective softening of fabrics as well as reduction of static cling. The product is stable for long periods of time and is effective for pretreatment stain removal.
Inventors
- 👤 T. Chandler Franks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:17
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/40; C11D3/42; C11D1/00; C11D1/38; C11D1/62; C11D3/0005; C11D3/001; C11D3/0015; C11D3/39; C11D3/3947
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
127 words
A generally single phase substantially phosphate free liquid aqueous solution for use as a laundry detergent and bleach comprising: a detergency effective amount of a member selected from the group consisting of a nonionic surfactant or a mixture of a nonionic surfactant and an anionic surfactant; hydrogen peroxide bleach present in an amount equivalent to about 1 to about 20 percent by weight of a 50 percent by weight aqueous solution of hydrogen peroxide; a fluorescent brightening agent present in an amount of from about 0.01 to about 2.0 percent by weight; and an aqueous medium; and wherein said single phase liquid has a loss of less than four and one half percent (4.5%) of original hydrogen peroxide content in two (2) months at 77 degrees F.
Claim 2
Dependent Claim
127 words
A generally single phase substantially phosphate free liquid aqueous solution for use as a laundry detergent and bleach comprising: a detergency effective amount of a member selected from the group consisting of a nonionic surfactant or a mixture of a nonionic surfactant and an anionic surfactant; hydrogen peroxide bleach present in an amount equivalent to about 1 to about 20 percent by weight of a 50 percent by weight aqueous solution of hydrogen peroxide; a fluorescent brightening agent present in an amount of from about 0.01 to about 2.0 percent by weight; and an aqueous medium; and wherein said single phase liquid has a loss of less than four and one half percent (4.5%) of original hydrogen peroxide content in two (2) months at 77 degrees F.
Claim 3
Dependent Claim
44 words
The generally single phase liquid for use as a laundry detergent and bleach in accordance with claim 1 further comprising a viscosity reducing amount of a solvent selected from the group consisting of C 2 or C 3 alcohols, sodium xylenesulfonate or sodium toluenesulfonate.
Claim 4
Dependent Claim
31 words
The generally single phase liquid for use as a laundry detergent and bleach in accordance with claim 1 wherein said brightening agent is a mixture of distyrylbiphenyl derivative and naphthotriazostilbene sulfonate.
Claim 5
Dependent Claim
38 words
The generally single phase liquid for use as a laundry detergent and bleach in accordance with claim 1 wherein said nonionic surfactant is an ethoxylate of an alcohol having from 7 to 11 ethylene oxide units per molecule.
Claim 6
Dependent Claim
29 words
The generally single phase liquid for use as a laundry detergent and bleach in accordance with claim 1, wherein said anionic surfactant is a linear secondary alkyl sulfonate salt.
Claim 7
Dependent Claim
31 words
The generally single phase liquid for use as a laundry detergent and bleach in accordance with claim 1 wherein said anionic surfactant is a sodium C 10 to C 16 alkylbenzenesulfonate.
Claim 8
Dependent Claim
26 words
The generally single phase liquid for use as a laundry detergent and bleach in accordance with claim 1 further comprising as a complexing agent sodium ethylenediaminetetraacetate.
Claim 9
Dependent Claim
23 words
The generally single phase liquid for use as a laundry detergent and bleach in accordance with claim 1 further comprising a blue dye.
Claim 10
Dependent Claim
32 words
The generally single phase liquid for use as a laundry detergent and bleach in accordance with claim 1 further including a cationic surfactant for use as a fabric softener and anti-static agent.
Claim 11
Dependent Claim
48 words
The generally single phase liquid for use as a laundry detergent bleach and fabric softener in accordance with claim 9 wherein said cationic surfactant comprises a member selected from the group consisting of polyethylene glycol (2) tallow ammonium chloride, polyethylene glycol (2) cocoa ammonium chloride, and 1-methyl-1-oleylamidoethyl-2-oleylimidazolinium methosulfate.
Claim 12
Dependent Claim
25 words
The generally single phase liquid for use as a laundry detergent, bleach and fabric softener in accordance with claim 10 further comprising a blue dye.
Claim 13
Dependent Claim
46 words
The generally single phase liquid for use as a laundry detergent, bleach and fabric softener in accordance with claim 10 further comprising a viscosity reducing amount of a solvent selected from the group consisting of C 2 or C 3 alcohols, sodium xylene-sulfonate or sodium toluenesulfonate.
Claim 14
Dependent Claim
33 words
The generally single phase liquid for use as a laundry detergent, bleach and fabric softener in accordance with claim 10 wherein said brightening agent is a mixture of distyrylbiphenyl derivative and naphthotriazostilbene sulfonate.
Claim 15
Dependent Claim
40 words
The generally singly phase liquid for use as a laundry detergent, bleach and fabric softener in accordance with claim 10 wherein said nonionic surfactant is an ethoxylate of an alcohol having from 7 to 11 ethylene oxide units per molecule.
Claim 16
Dependent Claim
36 words
The generally single phase liquid for use as a laundry detergent, bleach and fabric softener in accordance with claim 10 wherein said anionic surfactant is a linear secondary alkyl sulfonate salt or alkyl benzene sulfonate salt.
Claim 17
Dependent Claim
33 words
The generally single phase liquid for use as a laundry detergent, bleach and fabric softener in accordance with claim 15 wherein said anionic surfactant is a sodium C 10 to C 16 alkylbenzenesulfonate.
Claim 18
Dependent Claim
28 words
The generally single phase liquid for use as a laundry detergent, bleach and fabric softener in accordance with claim 10 further comprising as a complexing agent sodium ethylenediaminetetraacetate.
Claim 19
Dependent Claim
29 words
A process for laundering fabrics comprising: contacting said fabrics with the liquid of claim 1 in an aqueous medium for a period of time sufficient to clean said fabric.
Claim 20
Dependent Claim
27 words
The process according to claim 18 wherein 1/4 to 1/2 cup of said liquid is utilized with 12 to 20 gallons of water to launder said fabric.
Claim 21
Dependent Claim
22 words
The process according to claim 18 wherein said step of contacting is carried out at a temperature of less than 140° F.
Claim 22
Dependent Claim
21 words
The process of claim 18 including prior to said step of contacting pretreating stains by contacting said stains with said liquid.
Claim 23
Dependent Claim
33 words
The generally single phase liquid for use as a laundry detergent and bleach in accordance with claim 1, having less than 16.5% loss in hydrogen peroxide content after 26 months at room temperature.
Claim 24
Dependent Claim
34 words
The generally single phase liquid for use as a laundry detergent and bleach in accordance with claim 1, having less than 3.4% loss in hydrogen peroxide content after 6 months storage at room temperature.
Claim 25
Dependent Claim
22 words
The generally single phase substantially phosphate free liquid in accordance with claim 1 having 12% of said 50% aqueous hydrogen peroxide solution.
Claim 26
Dependent Claim
21 words
The generally single phase liquid in accordance with claim 1 having a brightening agent content of 0.01 to 1% by weight.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-06 | 1987-08-08 | 1988-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-06 | 1991-08-08 | 1992-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-06 | 1995-08-08 | 1996-02-07 | $7700.00 | Window Closed / Lapsed |