US4378300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peroxygen bleaching composition
Assignee: Colgate Palmolive Co
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Filing: 1981-12-10
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Granted: 1983-03-29
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Expires: 2001-12-10
Abstract
Abstract A bleaching and laundering composition comprising a peroxygen compound, an activator comprising phthalic anhydride and diethylene triamine pentamethylene phosphonic acid and/or a water-soluble salt thereof. A method of bleaching and laundering soiled and/or stained materials with the aforesaid bleaching composition is also described.
Inventors
- 👤 Frederick W. Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:59
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
31 words
A bleaching and laundering composition comprising a peroxygen compound, an activator for said peroxygen compound consisting essentially of phthalic anhydride, and diethylene triamine pentamethylene phosphonic acid and/or a water-soluble salt thereof.
Claim 2
Dependent Claim
31 words
A bleaching and laundering composition comprising a peroxygen compound, an activator for said peroxygen compound consisting essentially of phthalic anhydride, and diethylene triamine pentamethylene phosphonic acid and/or a water-soluble salt thereof.
Claim 3
Dependent Claim
16 words
A composition in accordance with claim 1 wherein the peroxygen compound is an alkali metal perborate.
Claim 4
Dependent Claim
16 words
A composition in accordance with claim 1 wherein the peroxygen compound is an alkali metal percarbonate.
Claim 5
Dependent Claim
27 words
A composition in accordance with claim 1 which additionally contains a surface active agent selected from the group consisting of anionic, nonionic, cationic, ampholytic and zwitterionic detergents.
Claim 6
Dependent Claim
76 words
A bleaching detergent composition comprising: (a) from about 5 to 50%, by weight, of a composition consisting essentially of a peroxygen compound, phthalic anhydride as an activator therefor, and diethylene triamine pentamethylene phosphonic acid and/or a water-soluble salt thereof; (b) from about 5 to 50%, by weight, of a detergent surface active agent; (c) from about 1 to 60%, by weight, of a detergent builder salt; and, (d) the balance comprising water and optionally filler salts.
Claim 7
Dependent Claim
76 words
A bleaching detergent composition comprising: (a) from about 5 to 50%, by weight, of a composition consisting essentially of a peroxygen compound, phthalic anhydride as an activator therefor, and diethylene triamine pentamethylene phosphonic acid and/or a water-soluble salt thereof; (b) from about 5 to 50%, by weight, of a detergent surface active agent; (c) from about 1 to 60%, by weight, of a detergent builder salt; and, (d) the balance comprising water and optionally filler salts.
Claim 8
Dependent Claim
37 words
A bleaching detergent composition in accordance with claim 5 wherein said peroxygen compound is an alkali metal perborate, and said surface active agent is selected from the group consisting of anionic, nonionic, cationic, ampholytic and zwitterionic detergents.
Claim 9
Dependent Claim
48 words
A process for bleaching which comprises contacting the stained and/or soiled material to be bleached with an aqueous solution of a composition comprising a peroxygen compound, an activator for said peroxygen compound consisting essentially of phthalic anhydride and diethylene triamine pentamethylene phosphonic acid and/or a water-soluble salt thereof.
Claim 10
Dependent Claim
48 words
A process for bleaching which comprises contacting the stained and/or soiled material to be bleached with an aqueous solution of a composition comprising a peroxygen compound, an activator for said peroxygen compound consisting essentially of phthalic anhydride and diethylene triamine pentamethylene phosphonic acid and/or a water-soluble salt thereof.
Claim 11
Dependent Claim
14 words
The process of claim 5 wherein the peroxygen compound is an alkali metal perborate.
Claim 12
Dependent Claim
14 words
The process of claim 5 wherein the peroxygen compound is an alkali metal percarbonate.
Claim 13
Dependent Claim
27 words
The process of claim 5 wherein said composition additionally contains a surface active detergent selected from the group consisting of anionic, nonionic, cationic, ampholytic and zwitterionic detergents.
Claim 14
Dependent Claim
79 words
A process for manufacturing the composition of claim 5 which comprises: (a) forming an aqueous slurry containing said detergent surface active agent and said detergent builder salt; (b) spray-drying said aqueous slurry to form granular particles thereof; and, (c) adding the composition consisting essentially of (i) a peroxygen compound, (ii) phthalic anhydride, and (iii) diethylene triamine pentamethylene phosphonic acid and/or a water-soluble salt thereof to the granular particles formed in step (b) to form the finished bleaching detergent composition.
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) | 1986-03-28 | 1986-09-27 | 1987-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-28 | 1990-09-27 | 1991-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-28 | 1994-09-27 | 1995-03-29 | $7700.00 | Window Closed / Lapsed |