US4436522A
Expired / Lapsed
US
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Disperse dye composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1981-12-31
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Granted: 1984-03-13
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Expires: 2001-12-31
Abstract
Abstract A disperse dye composition containing: 20 to 50% by weight of a water-insoluble or sparingly soluble dye; and 1 to 5% by weight of a water-soluble surface active agent represented by the formula: <IMAGE> wherein R1 is a hydrogen atom or an alpha -methylbenzyl group, R2 is a hydrogen atom or an alpha -methylbenzyl group, R3 is a hydrogen atom or a methyl group, R4 is a hydrogen atom, a methyl group or an alpha -methylbenzyl group, any one of l and n is 0 and the other is an integer of 7 to 20, and m is an integer of 0 to 5.
Inventors
- 👤 Toshio Niwa
- 👤 Susumu Nagashima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:55
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0084; C09B67/0085; C09B67/0089
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
123 words
A disperse dye composition containing: 20 to 50% by weight of a water-insoluble or sparingly soluble dye; and 1 to 5% by weight of a water-soluble surface active agent represented by the formula: ##STR18## wherein R 1 is a hydrogen atom or an α-methylbenzyl group, R 2 is a hydrogen atom or an α-methylbenzyl group, R 3 is a hydrogen atom or a methyl group, R 4 is a hydrogen atom, a methyl group or an α-methybenzyl group, with the proviso that one of R 1 , R 2 and R 4 is an α-methylbenzyl group, wherein one of l and n is 0 and the other is an integer of 7 to 20, and m is an integer of 0 to 5.
Claim 2
Dependent Claim
123 words
A disperse dye composition containing: 20 to 50% by weight of a water-insoluble or sparingly soluble dye; and 1 to 5% by weight of a water-soluble surface active agent represented by the formula: ##STR18## wherein R 1 is a hydrogen atom or an α-methylbenzyl group, R 2 is a hydrogen atom or an α-methylbenzyl group, R 3 is a hydrogen atom or a methyl group, R 4 is a hydrogen atom, a methyl group or an α-methybenzyl group, with the proviso that one of R 1 , R 2 and R 4 is an α-methylbenzyl group, wherein one of l and n is 0 and the other is an integer of 7 to 20, and m is an integer of 0 to 5.
Claim 3
Dependent Claim
17 words
The disperse dye composition of claim 1 wherein said water-soluble surface active agent has the formula ##STR19##
References Cited (Backward Citations)
US4233026A
Cited
US4373930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |