Patent US4012376A successfully refreshed from Google Patents.
US4012376A
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Photosensitive colorant materials
Assignee: Eastman Kodak Co
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Filing: 1975-12-29
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Granted: 1977-03-15
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Expires: 1995-12-29
Abstract
Abstract Colorant materials which exhibits useful levels of electrical photosensitivity are disclosed. These materials have the formula: ##STR1## WHEREIN N REPRESENTS 0 OR 1, m represents 1 or 2, Ar represents an aromatic group, A represents an alkylene group, R 1 and R 2 , when taken together, represent an alkylene group, R 1 , r.sup. 4, r 5 , and R 6 , when taken alone, each represent hydrogen, nitro, cyano, halogen, or one of various specified organo groups, and R 2 , when taken alone, represents hydrogen, an aromatic or an alkyl group.
Inventors
- 👤 Hal E. Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:31
CPC Classifications
C; C07; C07D; C07D519/00; G; G03; G03G; G03G17/00; G03G17/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
219 words
An electrically photosensitive colorant having the formula: ##STR25##wherein n represents 0 or 1; m represents the integer 1 or 2; Ar represents a substituted or unsubstituted aromatic ring group, free from any saturated N-heterocyclic ring group fused thereto, having 6 to 20 ring atoms in the aromatic ring; A represents a substituted or unsubstituted alkylene group having 2 to 5 carbon atoms in the alkylene chain; each of R 1 and R 2 , when taken together, represents a substituted or unsubstituted alkylene group having 2 to 5 carbon atoms in the alkylene chain; each of R 1 , R 4 , R 5 , and R 6 , when taken alone, represents hydrogen, nitro, cyano, halogen, alkoxy having 1 to 8 carbon atoms, substituted or unsubstituted alkyl having 1 to 8 carbon atoms in the alkyl group, substituted or unsubstituted phenyl, carboxy ester having 1 to 4 carbon atoms, or an amide having the formula: --CONR.sub.2.sup.7 wherein R 7 represents hydrogen or substituted or unsubstituted phenyl or substituted or unsubstituted alkyl having 1 to 8 carbon atoms in the alkyl group; and R 2 , when taken alone, represents hydrogen, substituted or unsubstituted alkyl having 1 to 8 carbon atoms in the alkyl group, or substituted or unsubstituted aromatic ring group having 6 to 20 carbon ring atoms.
Claim 2
Dependent Claim
219 words
An electrically photosensitive colorant having the formula: ##STR25##wherein n represents 0 or 1; m represents the integer 1 or 2; Ar represents a substituted or unsubstituted aromatic ring group, free from any saturated N-heterocyclic ring group fused thereto, having 6 to 20 ring atoms in the aromatic ring; A represents a substituted or unsubstituted alkylene group having 2 to 5 carbon atoms in the alkylene chain; each of R 1 and R 2 , when taken together, represents a substituted or unsubstituted alkylene group having 2 to 5 carbon atoms in the alkylene chain; each of R 1 , R 4 , R 5 , and R 6 , when taken alone, represents hydrogen, nitro, cyano, halogen, alkoxy having 1 to 8 carbon atoms, substituted or unsubstituted alkyl having 1 to 8 carbon atoms in the alkyl group, substituted or unsubstituted phenyl, carboxy ester having 1 to 4 carbon atoms, or an amide having the formula: --CONR.sub.2.sup.7 wherein R 7 represents hydrogen or substituted or unsubstituted phenyl or substituted or unsubstituted alkyl having 1 to 8 carbon atoms in the alkyl group; and R 2 , when taken alone, represents hydrogen, substituted or unsubstituted alkyl having 1 to 8 carbon atoms in the alkyl group, or substituted or unsubstituted aromatic ring group having 6 to 20 carbon ring atoms.
Claim 3
Dependent Claim
75 words
An electrically photosensitive colorant component having the following formula: ##STR26##wherein Ar represents a substituted or unsubstituted, aromatic ring group having 6 to 20 ring atoms in the aromatic ring; each of R 4 and R 5 , which may be the same or different, represents hydrogen or cyano; and R 2 represents a substituted or unsubstituted alkyl group having 1 to 8 carbon atoms in the alkyl group or a substituted or unsubstituted phenyl group.
Claim 4
Dependent Claim
75 words
An electrically photosensitive colorant component having the following formula: ##STR26##wherein Ar represents a substituted or unsubstituted, aromatic ring group having 6 to 20 ring atoms in the aromatic ring; each of R 4 and R 5 , which may be the same or different, represents hydrogen or cyano; and R 2 represents a substituted or unsubstituted alkyl group having 1 to 8 carbon atoms in the alkyl group or a substituted or unsubstituted phenyl group.
Claim 5
Dependent Claim
50 words
An electrically photosensitive colorant component having the following formula: ##STR27## wherein Ar represents a substituted or unsubstituted, aromatic ring group having 6 to 20 ring atoms in the aromatic ring; and each of R 4 and R 5 , which may be the same or different, represents hydrogen or cyano.
Claim 6
Dependent Claim
50 words
An electrically photosensitive colorant component having the following formula: ##STR27## wherein Ar represents a substituted or unsubstituted, aromatic ring group having 6 to 20 ring atoms in the aromatic ring; and each of R 4 and R 5 , which may be the same or different, represents hydrogen or cyano.
Claim 7
Dependent Claim
11 words
An electrically photosensitive colorant having one of the following formulas: ##STR28##
Claim 8
Dependent Claim
11 words
An electrically photosensitive colorant having one of the following formulas: ##STR28##
References Cited (Backward Citations)
US3681068A
Cited
US3873940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |