Patent US4288388A successfully refreshed from Google Patents.
US4288388A
Expired / Lapsed
US
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Bleaching composition
Assignee: Solvay Interox Ltd
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Filing: 1979-11-14
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Granted: 1981-09-08
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Expires: 1999-11-14
Abstract
Abstract The present invention provides aromatic peroxyacids containing at least three peroxyacid groups, which can be incorporated in detergent or bleaching compositions. The aromatic peroxyacids can be desensitized by intimate contact with a diluent e.g. magnesium sulphate or lauric acid, and coated to reduce destructive interaction with other components of the detergent or bleaching composition. Preferred aromatic peroxyacids include triperoxy trimellitic acid, triperoxy trimesic acid and tetraperoxy pyomellitic acid. The aromatic peroxyacids are especially suitable for washing white fabrics or cleaning hard surfaces, particularly at a temperature of from 30° to 60° C.
Inventors
- 👤 Joseph E. McCrudden
- 👤 Alan Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:10
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0039; C07; C07C; C07C409/00; C07C409/24; C07C409/30; C11D3/00; C11D3/39; C11D3/3945; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
40 words
A compound having the general formula: ##STR4## wherein R is selected from the group consisting of lower alkyl, chloro and nitro, x is 0, 1, 2 or 3 and p is 3 or 4, or an anion of said compound.
Claim 2
Dependent Claim
40 words
A compound having the general formula: ##STR4## wherein R is selected from the group consisting of lower alkyl, chloro and nitro, x is 0, 1, 2 or 3 and p is 3 or 4, or an anion of said compound.
Claim 3
Dependent Claim
23 words
A compound according to claim 1 selected from the group consisting of triperoxytrimellitic acid, triperoxytrimesic acid, triperoxyhemimellitic acid, tetraperoxypyromellitic acid and tetraperoxyprehnitic acid.
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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |