Patent US3307687A successfully refreshed from Google Patents.
US3986971A
Expired / Lapsed
US
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2,4-diisocyanato-6-halo-s-triazines as peroxygen bleach activators
Assignee: Wyeth Holdings LLC
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Filing: 1975-11-25
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Granted: 1976-10-19
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Expires: 1995-11-25
Abstract
Abstract Diisocyanate halotriazine compounds of the formula: ##SPC1## Wherein X is a halogen atom are bleach activators which have high bleaching activity at low temperatures in peroxygen salt bleach compositions and do not appreciably change the shade of cotton dyed with many classes of dyes, particularly Vat Blue 6.
Inventors
- 👤 Frank Fred Loffelman
- 👤 Robert Edward Misner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:19
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907; C11D3/3917; C11D3/392
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
30 words
A bleaching composition comprising hydrogen peroxide or a hydrogen peroxide-releasing compound and an activating amount of a diisocyanato-s-triazine compound represented by the formula: ##SPC3## wherein X is a halogen atom.
Claim 2
Dependent Claim
30 words
A bleaching composition comprising hydrogen peroxide or a hydrogen peroxide-releasing compound and an activating amount of a diisocyanato-s-triazine compound represented by the formula: ##SPC3## wherein X is a halogen atom.
Claim 3
Dependent Claim
27 words
A bleaching composition according to claim 1 wherein the mole ratio of the diisocyanato-s-triazine compound to the hydrogen peroxide-releasing compound is from about 1:1 to about 1:10.
Claim 4
Dependent Claim
18 words
A bleaching composition according to claim 1 wherein the hydrogen peroxide-releasing compound is sodium perborate or sodium percarbonate.
Claim 5
Dependent Claim
16 words
A bleaching composition according to claim 3 wherein the diisocyanato-s-triazine is represented by the formula: ##SPC4##
Claim 6
Dependent Claim
10 words
A bleaching composition according to claim 1 containing a detergent.
References Cited (Backward Citations)
US3907698A
Cited
US3912648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |