Patent US4788121A successfully refreshed from Google Patents.
US4788121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colored toners containing dicyanomethine dye compounds
Assignee: Eastman Kodak Co
•
Filing: 1986-10-17
•
Granted: 1988-11-29
•
Expires: 2006-10-17
Abstract
Abstract Disclosed is an electrostatographic toner comprising a thermoplastic polymer and a tetrahydroquinoline dicyanomethine yellow dye having the formula soluble in ##STR1## wherein R 1 and R 2 are lower alkyl, R 3 is lower alkylene, R 4 is dicarboximido of 4 to 8 carbon atoms, benzothiazolyl-2-thio of alkylcarboxy of 4 to 18 carbon atoms, R 5 is alkylene of 4 to 10 carbon atoms or arylene of 6 to 10 carbon atoms and X is
Inventors
- 👤 William H. Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:35
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/0091; G; G03; G03G; G03G9/00; G03G9/08; G03G9/09; G03G9/0906; G03G9/0916
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
70 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR17## wherein R 1 and R 2 are lower alkyl, R 3 is lower alkylene, R 4 is dicarboximido of 4 to 8 carbon atoms, benzothiazolyl-2-thio or alkylcarboxy of 4 to 18 carbon atoms, R 5 is alkylene of 4 to 10 carbon atoms or arylene of 6 to 10 carbon atoms and X is ##STR18##
Claim 2
Dependent Claim
70 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR17## wherein R 1 and R 2 are lower alkyl, R 3 is lower alkylene, R 4 is dicarboximido of 4 to 8 carbon atoms, benzothiazolyl-2-thio or alkylcarboxy of 4 to 18 carbon atoms, R 5 is alkylene of 4 to 10 carbon atoms or arylene of 6 to 10 carbon atoms and X is ##STR18##
Claim 3
Dependent Claim
15 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR19##
Claim 4
Dependent Claim
15 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR19##
Claim 5
Dependent Claim
15 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR20##
Claim 6
Dependent Claim
15 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR20##
Claim 7
Dependent Claim
15 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR21##
Claim 8
Dependent Claim
15 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR21##
Claim 9
Dependent Claim
15 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR22##
Claim 10
Dependent Claim
15 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR22##
Claim 11
Dependent Claim
15 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR23##
Claim 12
Dependent Claim
15 words
An electrostatographic toner comprising a thermoplastic polymer and a dye compound having the formula ##STR23##
Claim 13
Dependent Claim
12 words
A toner according to claim 1 containing also a charge control agent.
Claim 14
Dependent Claim
31 words
A toner according to claim 1 wherein the dye compound is soluble in the polymer and does not decompose and does not sublime substantially at the fusing temperature of the polymer.
Claim 15
Dependent Claim
13 words
A toner according to claim 8 wherein the thermoplastic polymer is a polyester.
References Cited (Backward Citations)
DE1219328B
Cited
US3247211A
Cited
US3240783A
Cited
US3553245A
Cited
US3398152A
Cited
US3631049A
Cited
US3453280A
Cited
US3879434A
Cited
US3597434A
Cited
US3595863A
Cited
US4161601A
Cited
US4380633A
Cited
US4180663A
Cited
JPS58102247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-29 | 1992-05-30 | 1992-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-29 | 1996-05-30 | 1996-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-29 | 2000-05-30 | 2000-11-29 | $7700.00 | Window Closed / Lapsed |