Bridged halotriazine compounds as bleach activators
Abstract
Abstract Bridged halotriazine compounds of the formula WHERE A represents a group selected from vinylene, phenylene, biphenylene, stilbyl and ethynylenebis(p-phenylene) groups; Z represents a group selected from -O-, -S- or -N(H)-; n is an integer selected from zero and one; X1 and X2 individually represent chlorine, bromine or fluorine; and R1 and R2 individually represent halogen, hydroxy, mercapto, alkyl, alkenyl, alkoxy, alkylmercapto, aryl, aryloxy, arylmercapto, dialkoxyphosphinyl or WHERE R3 and R4 may be hydrogen, alkyl, cyanoalkyl, hydroxyalkyl, carboxyalkyl, chloroalkyl, alkoxyalkyl, sulfoalkyl, aryl, sulfoaryl, acylaminoaryl or carbamoylalkyl, or where R3 and R4 taken together may be joined to complete a heterocyclic ring selected from morpholine, piperazine and piperidine rings; are effective as bleach activators for peroxygen bleaching compositions.
Inventors
- 👤 Frank Fred Loffelman
- 👤 Thomas Eugene Brady
Bibliographic Details
Claims Analysis
Total Claims: 7References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |