US4238192A
Expired / Lapsed
US
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Hydrogen peroxide bleach composition
Assignee: SC Johnson and Son Inc
•
Filing: 1979-01-22
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Granted: 1980-12-09
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Expires: 1999-01-22
Abstract
Abstract A stabilized liquid hydrogen peroxide bleach composition suitable for household use which comprises from 2-12% by weight hydrogen peroxide, 0-20% by weight of an acid selected from an organic acid, phosphoric acid, boric acid or mixtures thereof, 0.1-7.5% by weight of a nitrogen-containing compound, 0.0001-1% by weight of a compound selected from the group consisting of optical brighteners, dyes and mixtures thereof, and water, wherein the weight ratio of hydrogen peroxide to nitrogen-containing compound is within the range of from 1:0.003 to 1:1.5, the composition contains sufficient acid to have a pH within the range of from 1.8-5.5.
Inventors
- 👤 Thomas V. Kandathil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:56
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/40; C11D3/42; C11D3/39; C11D3/3902; C11D3/3937; C11D3/3947
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
115 words
A stable aqueous bleach composition comprising: (a) from 2-12% by weight hydrogen peroxide; (b) from 0-20% by weight of an acid selected from the group consisting of an organic acid, phosphoric acid, boric acid or mixtures thereof; (c) from 0.05-10.0% by weight of at least one alpha-amino acid; (d) from 0.0001-1% by weight of a compound selected from the group consisting of a dye, an optical brightener or mixtures thereof; and (e) water; the weight ratio of hydrogen peroxide to alpha-amino acid is within the range of from 1:0.003-1:1.5 and with the proviso that the composition contains sufficient organic acid to bring the pH of the composition to within the range of from about 1.8-5.5.
Claim 2
Dependent Claim
115 words
A stable aqueous bleach composition comprising: (a) from 2-12% by weight hydrogen peroxide; (b) from 0-20% by weight of an acid selected from the group consisting of an organic acid, phosphoric acid, boric acid or mixtures thereof; (c) from 0.05-10.0% by weight of at least one alpha-amino acid; (d) from 0.0001-1% by weight of a compound selected from the group consisting of a dye, an optical brightener or mixtures thereof; and (e) water; the weight ratio of hydrogen peroxide to alpha-amino acid is within the range of from 1:0.003-1:1.5 and with the proviso that the composition contains sufficient organic acid to bring the pH of the composition to within the range of from about 1.8-5.5.
Claim 3
Dependent Claim
21 words
The composition of claim 1 wherein the alpha-amino acid is present in an amount of from 0.1 to 7.5% by weight.
Claim 4
Dependent Claim
19 words
The composition of claim 1 wherein the alpha-amino acid is present in an amount of from 0.5-1.5% by weight.
Claim 5
Dependent Claim
19 words
The composition of claims 1 or 2 or 3 wherein the alpha-amino acid is methionine, glycine or mixtures thereof.
Claim 6
Dependent Claim
34 words
The composition of claim 1 wherein the acid is present in an amount of from 0.1-12% by weight and wherein the weight ratio of hydrogen peroxide to acid is within the range of 1:0.01-1:4.
Claim 7
Dependent Claim
34 words
The composition of claim 1 wherein the acid is present in an amount of from 0.50-8% by weight and wherein the weight ratio of hydrogen peroxide to acid is within the range of 1:0.01-1:4.
Claim 8
Dependent Claim
30 words
The composition of claims 1 or 5 or 6 wherein the acid is selected from the group consisting of adipic acid, phthalic acid, citric acid, boric acid or mixtures thereof.
Claim 9
Dependent Claim
15 words
The composition of claims 1 or 5 or 6 wherein the acid is adipic acid.
Claim 10
Dependent Claim
18 words
The composition of claim 1 wherein the hydrogen peroxide is present in an amount from 2-8% by weight.
Claim 11
Dependent Claim
18 words
The composition of claim 1 wherein the hydrogen peroxide is present in an amount from 2-6% by weight.
Claim 12
Dependent Claim
118 words
A stable aqueous bleach composition comprising: (a) from 2-8% by weight hydrogen peroxide; (b) from 0.1-12% by weight acid selected from the group consisting of an organic acid phosphoric acid, boric acid or mixtures thereof; (c) from 0.1-7.5% by weight of at least one alpha-amino acid; (d) from 0.0001-1% by weight of a compound selected from the group consisting of a dye, an optical brightener and mixtures thereof; and (e) water; wherein the weight ratio of hydrogen peroxide to acid is within the range of from 1:0.01-1:4 and the weight ratio of hydrogen peroxide to alpha-amino acid is within the range of from 1:0.003-1:1.5 and wherein the composition has a pH within the range of from about 1.8-5.5.
Claim 13
Dependent Claim
118 words
A stable aqueous bleach composition comprising: (a) from 2-8% by weight hydrogen peroxide; (b) from 0.1-12% by weight acid selected from the group consisting of an organic acid phosphoric acid, boric acid or mixtures thereof; (c) from 0.1-7.5% by weight of at least one alpha-amino acid; (d) from 0.0001-1% by weight of a compound selected from the group consisting of a dye, an optical brightener and mixtures thereof; and (e) water; wherein the weight ratio of hydrogen peroxide to acid is within the range of from 1:0.01-1:4 and the weight ratio of hydrogen peroxide to alpha-amino acid is within the range of from 1:0.003-1:1.5 and wherein the composition has a pH within the range of from about 1.8-5.5.
Claim 14
Dependent Claim
19 words
The composition of claim 11 wherein the alpha-amino acid is present in an amount of from 0.5-1.5% by weight.
Claim 15
Dependent Claim
17 words
The composition of claims 11 or 12 wherein the alpha-amino acid is methionine, glycine or mixtures thereof.
Claim 16
Dependent Claim
20 words
The composition of claims 11 or 12 wherein the acid is present in an amount of from 0.50%-8% by weight.
Claim 17
Dependent Claim
26 words
The composition of claim 14 wherein the acid is selected from the group consisting of adipic acid, phthalic acid, citric acid, boric acid or mixtures thereof.
Claim 18
Dependent Claim
11 words
The composition of claim 14 wherein the acid is adipic acid.
Claim 19
Dependent Claim
18 words
The composition of claim 11 wherein the hydrogen peroxide is present in an amount from 2-6% 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) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |