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US4267266A
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Photographic films
Assignee: Konica Minolta Inc
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Filing: 1979-08-01
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Granted: 1981-05-12
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Expires: 1999-08-01
Abstract
Abstract A photographic film having at least one light-sensitive silver halide emulsion layer on one side of a support and at least one reverse side layer on the other side thereof which comprises, in said reverse side layer, a compound represented by formula [I]: ##STR1## wherein R 1 , R 2 , R 3 and R 4 each represent a hydrogen atom or an aliphatic acyl group having from 12 to 24 carbon atoms provided that at least three of R 1 , R 2 , R 3 and R 4 each represent an aliphatic acyl group having from 12 to 24 carbon atoms, and a tertiary amine.
Inventors
- 👤 Toshiaki Shibue
- 👤 Koichi Nagayasu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:00
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/7614; Y; Y10; Y10S; Y10S430/00; Y10S430/162
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
259 words
A photographic film having at least one light-sensitive silver halide emulsion layer on one side of a support and at least one reverse side layer on the other side of the support which comprises, in said reverse side layer, a compound represented by formula [I]: ##STR11## wherein R 1 , R 2 , R 3 and R 4 each represent a hydrogen atom or an aliphatic acyl group having from 12 to 24 carbon atoms provided that at least three of R 1 , R 2 , R 3 and R 4 each represent an aliphatic acyl group having from 12 to 24 carbon atoms, and a tertiary amine represented by the formula [II]: ##STR12## wherein R 5 represents an alkyl group having from 8 to 24 carbon atoms; R 6 represents a hydrogen atom, a methyl group or a group --CH 2 OR 7 in which R 7 means a hydrogen atom, an alkyl group having from 1 to 7 carbon atoms, an aryl group or an aralkyl group; m and n each represent an integer of from 0 to 3 (provided 3≧m+n≧1); A represents a group ##STR13## in which R 6 and R 7 have the same meanings as defined above, and p and q each represent an integer of from 1 to 3 (provided 3≧p+q≧1); and B represents an alkyl group having from 1 to 7 carbon atoms, an aryl group, an aralkyl group or a group ##STR14## in which R 6 , R 7 , m and n have the same meanings as defined above.
Claim 2
Dependent Claim
259 words
A photographic film having at least one light-sensitive silver halide emulsion layer on one side of a support and at least one reverse side layer on the other side of the support which comprises, in said reverse side layer, a compound represented by formula [I]: ##STR11## wherein R 1 , R 2 , R 3 and R 4 each represent a hydrogen atom or an aliphatic acyl group having from 12 to 24 carbon atoms provided that at least three of R 1 , R 2 , R 3 and R 4 each represent an aliphatic acyl group having from 12 to 24 carbon atoms, and a tertiary amine represented by the formula [II]: ##STR12## wherein R 5 represents an alkyl group having from 8 to 24 carbon atoms; R 6 represents a hydrogen atom, a methyl group or a group --CH 2 OR 7 in which R 7 means a hydrogen atom, an alkyl group having from 1 to 7 carbon atoms, an aryl group or an aralkyl group; m and n each represent an integer of from 0 to 3 (provided 3≧m+n≧1); A represents a group ##STR13## in which R 6 and R 7 have the same meanings as defined above, and p and q each represent an integer of from 1 to 3 (provided 3≧p+q≧1); and B represents an alkyl group having from 1 to 7 carbon atoms, an aryl group, an aralkyl group or a group ##STR14## in which R 6 , R 7 , m and n have the same meanings as defined above.
Claim 3
Dependent Claim
20 words
A photographic film according to claim 1 wherein said reverse side layer is composed of not less than two layers.
Claim 4
Dependent Claim
19 words
A photographic film according to claim 1 wherein said at least one reverse side layer contains an antistatic agent.
Claim 5
Dependent Claim
17 words
A photographic film according to claim 1 wherein said at least one layer contains a hydrophobic polymer.
Claim 6
Dependent Claim
57 words
A photographic film according to claim 2 wherein said reverse side layer is composed of at least one layer [i] containing the compound of formula [I] and a hydrophobic polymer and at least one layer [ii] containing a tertiary amine and an antistatic agent, said layer [i] being located closer to the support than said layer [ii].
Claim 7
Dependent Claim
43 words
A photographic film according to claim 2 wherein said reverse side layer is composed of at least one layer [i] containing the compound of formula [I], a tertiary amine and a hydrophobic polymer and at least one layer [ii] comprising an antistatic agent.
Claim 8
Dependent Claim
39 words
A photographic film according to claim 1 wherein said reverse side layer is composed of at least one layer comprising the compound of formula [I], a tertiary amine, a hydrophobic polymer and an antistatic agent in the same layer.
Claim 9
Dependent Claim
25 words
A photographic film according to claim 5 wherein said layer [i] comprises the compound of formula [I], a hydrophobic polymer and a higher fatty acid.
Claim 10
Dependent Claim
20 words
A photographic film according to any one of claims 4 to 8 wherein said hydrophobic polymer is a cellulose derivative.
Claim 11
Dependent Claim
14 words
A photographic film according to claim 9 wherein said cellulose derivative is cellulose diacetate.
Claim 12
Dependent Claim
17 words
A photographic film according to claim 3, 5 or 6 wherein said antistatic agent is a polyelectrolyte.
Claim 13
Dependent Claim
20 words
A photographic film according to claim 3 or 6 wherein said antistatic agent is an inorganic oxide containing an electrolyte.
Claim 14
Dependent Claim
14 words
A photographic film according to claim 12 wherein said inorganic oxide is alumina sol.
Claim 15
Dependent Claim
25 words
A photographic film according to claim 3 or 7 wherein said antistatic agent is an inorganic oxide having a grain diameter of 0.01 to 0.5μ.
Claim 16
Dependent Claim
27 words
A photographic film according to claim 5 or 6 wherein said layer [ii] was coated by using a coating solvent which does not dissolve said layer [i].
Claim 17
Dependent Claim
13 words
A photographic film according to claim 15 wherein said coating solvent is water.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |