Patent US4790950A successfully refreshed from Google Patents.
US4790950A
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US
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Aqueous alkali metal halogenite compositions containing a colorant stabilized by NH4 OH
Assignee: SC Johnson and Son Inc
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Filing: 1988-03-07
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Granted: 1988-12-13
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Expires: 2008-03-07
Abstract
Abstract Aqueous cleaner compositions containing an alkali metal halogenite, for example, NaClO 2 ; a stabilizable colorant; and a stabilizing amount of a stabilizer compound which is an ammonium hydroxide. The preferred embodiment further includes an anionic or anionic fluorocarbon surfactant.
Inventors
- 👤 Richard S. Hutchings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:15
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/40; C11D3/395; C11D3/3951; C11D3/3956
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
72 words
An aqueous, alkaline cleaning composition comprising on a weight basis about 0.5 to about 5% of an alkali metal halogenite; from about 0.01 to about 3% of a dye normally chemically incompatible with said halogenite in aqueous media, and a stabilizer which is ammonium hydroxide, said stabilizer being present in the composition in an amount effective to stabilize the composition as evidenced by a substantial absence of chlorine dioxide in the composition.
Claim 2
Dependent Claim
72 words
An aqueous, alkaline cleaning composition comprising on a weight basis about 0.5 to about 5% of an alkali metal halogenite; from about 0.01 to about 3% of a dye normally chemically incompatible with said halogenite in aqueous media, and a stabilizer which is ammonium hydroxide, said stabilizer being present in the composition in an amount effective to stabilize the composition as evidenced by a substantial absence of chlorine dioxide in the composition.
Claim 3
Dependent Claim
17 words
The composition of claim 1 wherein the composition has an initial pH of about 9 and above.
Claim 4
Dependent Claim
21 words
The composition of claim 2 wherein the dye is selected from the group consisting of phthelocyanine, diazo, thiazine and triarylmethane dyes.
Claim 5
Dependent Claim
19 words
The composition of claim 3 wherein the composition has an initial pH of from about 9 to about 10.5.
Claim 6
Dependent Claim
12 words
The composition of claim 4 wherein the dye is a triarylmethane dye.
Claim 7
Dependent Claim
29 words
The composition of claim 4 wherein the dye is selected from the group consisting of Acid Blue Dye 185 and Colour Index Dye Nos. 22,610; 42,090; 52,035, and 74,180.
Claim 8
Dependent Claim
14 words
The composition of claim 4 wherein the dye is Colour Index Dye No. 42,090.
Claim 9
Dependent Claim
14 words
The composition of claim 4 wherein the dye is Colour Index Dye No. 52,035.
Claim 10
Dependent Claim
11 words
The composition of claim 1 wherein the halogenite is sodium chlorite.
Claim 11
Dependent Claim
11 words
The composition of claim 6 wherein the halogenite is sodium chlorite.
Claim 12
Dependent Claim
84 words
An aqueous, alkaline cleaning composition comprising on a weight basis from about 0.5 to about 5% sodium chlorite; from about 0.01 to about 3% of a stabilizable dye, said dye being normally chemically incompatible with said sodium chlorite in said aqueous composition, and a stabilizer which is ammonium hydroxide, said stabilizer being present in the composition in an amount effective to stabilize the composition as evidenced by the substantial absence of chlorine dioxide therein and a dye half-life of at least about two weeks.
Claim 13
Dependent Claim
84 words
An aqueous, alkaline cleaning composition comprising on a weight basis from about 0.5 to about 5% sodium chlorite; from about 0.01 to about 3% of a stabilizable dye, said dye being normally chemically incompatible with said sodium chlorite in said aqueous composition, and a stabilizer which is ammonium hydroxide, said stabilizer being present in the composition in an amount effective to stabilize the composition as evidenced by the substantial absence of chlorine dioxide therein and a dye half-life of at least about two weeks.
Claim 14
Dependent Claim
42 words
The composition of claim 11 wherein the initial pH of the composition is from about 9.0 to about 10.5, the dye being selected from the group consisting of Acid Blue Dye 185 and Colour Index Dye Nos. 22,610; 42,090; 52,035; and 74,180.
Claim 15
Dependent Claim
14 words
The composition of claim 12 wherein the dye is Colour Index Dye No. 42,090.
Claim 16
Dependent Claim
14 words
The composition of claim 12 wherein the dye is Colour Index Dye No. 52,035.
Claim 17
Dependent Claim
20 words
The composition of claim 11 further comprising an anionic surfactant in an amount of from about 0.02 to about 20%.
Claim 18
Dependent Claim
20 words
The composition of claim 11 further comprising an anionic fluorosurfactant in an amount of from about 0.005 to about 1%.
Claim 19
Dependent Claim
21 words
The composition of claim 12 wherein the sodium chlorite is present in an amount of from about 1 to about 3%.
Claim 20
Dependent Claim
20 words
The composition of claim 17 wherein the dye is present in an amount of from about 0.1 to about 2%.
Claim 21
Dependent Claim
16 words
The composition of claim 18 containing from about 0.1 to about 10% of the anionic surfactant.
Claim 22
Dependent Claim
15 words
The composition of claim 18 containing from about 0.01 to about 0.1% of the fluorosurfactant.
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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) | 1991-12-13 | 1992-06-13 | 1992-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-13 | 1996-06-13 | 1996-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-13 | 2000-06-13 | 2000-12-13 | $7700.00 | Window Closed / Lapsed |