Patent US4384970A successfully refreshed from Google Patents.
US4384970A
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Stabilizing compositions for peroxide products
Assignee: LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Filing: 1981-10-28
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Granted: 1983-05-24
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Expires: 2001-10-28
Abstract
Abstract Stabilizing compositions for peroxide products, which contain colloidal magnesium silicate associated with diethylenetriamine pentaacetic acid and diethylenetriaminepentamethylene phosphonic acid. These stabilizing compositions are intended particularly for use in home and industrial laundry powders.
Inventors
- 👤 Jacques Tourdot
- 👤 Henry Carron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:58
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3937
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
A stabilizing composition having a colloidal magnesium silicate base, for use in combination with peroxide compositions in bleaching or whitening baths for the protection of cellulose fibers treated in said baths, wherein the stabilizing composition contains colloidal magnesium silicate in combination with small amounts of diethylenetriamine pentaacetic acid and diethylenetriaminepentamethylene phosphonic acid.
Claim 2
Dependent Claim
52 words
A stabilizing composition having a colloidal magnesium silicate base, for use in combination with peroxide compositions in bleaching or whitening baths for the protection of cellulose fibers treated in said baths, wherein the stabilizing composition contains colloidal magnesium silicate in combination with small amounts of diethylenetriamine pentaacetic acid and diethylenetriaminepentamethylene phosphonic acid.
Claim 3
Dependent Claim
39 words
Stabilizing composition according to claim 1, wherein the diethylenetriamine pentaacetic acid is present in the combination, in a concentration of 1 to 20% by weight, and the diethylenetriaminepentamethylene phosphonic acid in a concentration of 1 to 15% by weight.
Claim 4
Dependent Claim
29 words
Stabilizing composition according to claim 1, wherein the composition contains 1.5 to 8% by weight of diethylenetriamine pentaacetic acid and 2 to 6% by weight of diethylenetriaminepentamethylene phosphonic acid.
Claim 5
Dependent Claim
24 words
Laundry powder composition containing the stabilizing composition of any one of claims 1 to 3 together with a peroxide compound and a laundering compound.
Claim 6
Dependent Claim
23 words
Laundry powder composition according to claim 4 wherein the stabilizing composition comprises on the order of about 2.5% of the laundry powder composition.
Claim 7
Dependent Claim
18 words
Laundry powder composition according to claim 4 further containing a trace amount of copper salt and iron salt.
References Cited (Backward Citations)
FR1420462A
Cited
US3740187A
Cited
US3766078A
Cited
US3795625A
Cited
FR2140213B1
Cited
US3860391A
Cited
FR2396114B1
Cited
US4279769A
Cited
US4225452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |