US4259201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent composition containing organic peracids buffered for optimum performance
Assignee: Procter and Gamble Co
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Filing: 1979-11-09
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Granted: 1981-03-31
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Expires: 1999-11-09
Abstract
Abstract Granular detergent compositions containing organic peroxyacids are buffered to a pH of from about 8.5 to about 8.6 in water of about 2 grains hardness and no less than about 8 in water of about 14 grains hardness, preferably by using boric acid, to provide optimum overall cleaning.
Inventors
- 👤 John R. Cockrell, Jr.
- 👤 Dean C. Hanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:28
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3945
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
166 words
A granular detergent composition consisting essentially of: (a) from about 0.1% to about 20% of a wash water-soluble or wash-water-dispersible organic peroxy acid bleaching agent having the formula ##STR6## wherein R is an alkyl or alkylene group containing from 1 to about 20 carbon atoms preferably from about 6 to about 16 carbon atoms or a phenylene group and Y is selected from the group consisting of hydrogen, halogen, alkyl, aryl, and anionic groups and mixtures thereof; (b) from about 1% to about 70% of a water-soluble detergent surfactant selected from the group consisting of anionic, nonionic, zwitterionic, amphoteric, semi-polar nonionic and cationic surfactants, and mixtures thereof; (c) from about 5% to about 80% of a detergency builder; the balance being water sodium sulfate, or mixtures thereof, the product being buffered to a pH, in a 1500 ppm solution, of from about 8.5 to about 8.6 in water of about 2 grains hardness; and to no less than about 8 in water of 14 grains hardness.
Claim 2
Dependent Claim
166 words
A granular detergent composition consisting essentially of: (a) from about 0.1% to about 20% of a wash water-soluble or wash-water-dispersible organic peroxy acid bleaching agent having the formula ##STR6## wherein R is an alkyl or alkylene group containing from 1 to about 20 carbon atoms preferably from about 6 to about 16 carbon atoms or a phenylene group and Y is selected from the group consisting of hydrogen, halogen, alkyl, aryl, and anionic groups and mixtures thereof; (b) from about 1% to about 70% of a water-soluble detergent surfactant selected from the group consisting of anionic, nonionic, zwitterionic, amphoteric, semi-polar nonionic and cationic surfactants, and mixtures thereof; (c) from about 5% to about 80% of a detergency builder; the balance being water sodium sulfate, or mixtures thereof, the product being buffered to a pH, in a 1500 ppm solution, of from about 8.5 to about 8.6 in water of about 2 grains hardness; and to no less than about 8 in water of 14 grains hardness.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein the buffering agent is boric acid.
Claim 4
Dependent Claim
26 words
The composition of claim 2 wherein the boric acid is present at a level of from about 2% to about 10% by weight of the composition.
Claim 5
Dependent Claim
52 words
The composition of claim 1 wherein the surfactant level is from about 5% to about 40%, the detergency builder level is from about 20% to about 60%, and the peroxy acid compound is present in an amount to give from about 0.5 to about 3 ppm available oxygen in the wash solution.
Claim 6
Dependent Claim
34 words
The composition of claim 4 wherein the detergent surfactant level is from about 10% to about 20%, the detergency builder level is from about 30% to about 50%, and the buffer is boric acid.
Claim 7
Dependent Claim
28 words
The composition of claim 1 wherein the bleach is present to give a level of from about 3 to about 8 ppm available oxygen in the wash solution.
Claim 8
Dependent Claim
28 words
The composition of claim 1 wherein the bleach is present at a level to give from about 8 to about 20 ppm available oxygen in the wash solution.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |