Patent US4900653A successfully refreshed from Google Patents.
US4900653A
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Photographic elements containing filter dye particle dispersions
Assignee: Eastman Kodak Co
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Filing: 1988-12-23
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Granted: 1990-02-13
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Expires: 2008-12-23
Abstract
Abstract Dyes according to the formula: ##STR1## are useful as filter dyes in photographic elements. In this formula, n is 1 or 2. R 1 and R 2 are each independently substituted or unsubstituted alkyl or substituted or unbsubstituted aryl, or together represent the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered ring. Also, if R 7 is substituted or unsubstituted alkyl, R 1 is H. R 3 is substituted or unsubstituted alkyl or aryl. R 4 and R 5 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, secondary or tertiary amino, CO 2 H, or NHSO 2 R 6 , with the proviso that at least one of R 4 , R 5 , or a substituent on an aryl ring in R 3 , on an aryl ring in R 4 or R 5 , on an aryl ring in R 1 or R 2 , or on an aryl ring formed by R 1 and R 2 is CO 2 H or NHSO 2 R 6 . R 6 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl. R 7 is substituted or unsubstituted alkyl, or together with R 8 forms a double bond. R 8 is H or together with R 7 forms a double bond.
Inventors
- 👤 Ronda E. Factor
- 👤 Donald R. Diehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:05
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83; G03C1/832; C; C09; C09B; C09B23/00; C09B23/0091
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
269 words
A photographic element comprising a support having thereon a radiation-sensitive silver halide emulsion layer and a hydrophilic colloid layer, which is the same as or different from the silver halide layer, comprising from 1 to 1000 mg/m 2 of a solid particle dispersion of a compound having the formula: ##STR4## wherein R 1 and R 2 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or together repesent the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered ring, and R 1 is H if R 7 is substituted or unsubstituted alkyl, R 3 is substituted or unsubstituted alkyl or aryl, R 4 and R 5 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, secondary or tertiary amino, CO 2 H, or NHSO 2 R 6 , with the proviso that at least one of R 4 , R 5 , or a substituent on an aryl ring in R 3 , on an aryl ring in R 4 or R 5 , on an aryl ring in R 1 or R 2 , or on an aryl ring formed by R 1 and R 2 is CO 2 H or NHSO 2 R 6 , R 6 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl, and R 7 is substituted or unsubstituted alkyl, or together with R 8 forms a double bond, R 8 is H or together with R 7 forms a double bond, and n is 1 or 2, the particles in said dispersion having a mean diameter of from about 0.01 to 10 μm.
Claim 2
Dependent Claim
269 words
A photographic element comprising a support having thereon a radiation-sensitive silver halide emulsion layer and a hydrophilic colloid layer, which is the same as or different from the silver halide layer, comprising from 1 to 1000 mg/m 2 of a solid particle dispersion of a compound having the formula: ##STR4## wherein R 1 and R 2 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or together repesent the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered ring, and R 1 is H if R 7 is substituted or unsubstituted alkyl, R 3 is substituted or unsubstituted alkyl or aryl, R 4 and R 5 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, secondary or tertiary amino, CO 2 H, or NHSO 2 R 6 , with the proviso that at least one of R 4 , R 5 , or a substituent on an aryl ring in R 3 , on an aryl ring in R 4 or R 5 , on an aryl ring in R 1 or R 2 , or on an aryl ring formed by R 1 and R 2 is CO 2 H or NHSO 2 R 6 , R 6 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl, and R 7 is substituted or unsubstituted alkyl, or together with R 8 forms a double bond, R 8 is H or together with R 7 forms a double bond, and n is 1 or 2, the particles in said dispersion having a mean diameter of from about 0.01 to 10 μm.
Claim 3
Dependent Claim
111 words
A photographic element according to claim 1 wherein R 1 and R 2 are each independently substituted or unsubstituted alkyl of from 1 to 6 carbon atoms, or together form a phenyl ring, R 3 is substituted or unsubstituted alkyl of from 1 to 8 carbon atoms or substituted or unsubstituted aryl of from 6 to 14 carbon atoms, R 4 is H, CO 2 H, or NHSO 2 R 6 , R 5 is H, CO 2 H, or NHSO 2 R 6 , R 6 is substituted or unsubstituted alkyl of from 1 to 6 carbon atoms or substituted or unsubstituted aryl of from 6 to 14 carbon atoms.
Claim 4
Dependent Claim
53 words
A photographic element according to claim 1 wherein R 1 and R 2 are each methyl or together with the carbon atoms to which they are attached, form a phenyl ring, R 4 is CO 2 H, R 5 is H or CO 2 H, and R 3 is methyl, ethyl, or benzyl.
Claim 5
Dependent Claim
130 words
A photographic element according to claim 1 wherein at least one of R 4 , R 5 , or a substituent on an aryl ring in R 3 , on an aryl ring in R 4 or R 5 , on an aryl ring in R 1 or R 2 , or on an aryl ring formed by R 1 and R 2 is CO 2 H, or at least two of R 4 , R 5 , or a substituent on an aryl ring in R 3 , on an aryl ring in R 4 or R 5 , on an aryl ring in in R 1 or R 2 , or on an aryl ring formed by R 1 and R 2 are NHSO 2 R 6 .
Claim 6
Dependent Claim
18 words
A photographic element according to claim 1 wherein R 7 and R 8 together form a double bond.
Claim 7
Dependent Claim
11 words
A photographic element according to claim 1 wherein n is 1.
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