Patent US4639408A successfully refreshed from Google Patents.
US4639408A
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Process for image formation comprising a heating step
Assignee: Fujifilm Holdings Corp
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Filing: 1985-11-20
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Granted: 1987-01-27
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Expires: 2005-11-20
Abstract
Abstract A process for forming an image comprising a heating step is described, wherein a photographic material is heated in the presence of a compound represented by formula (I) ##STR1## wherein X represents an atomic group completing a carbocyclic aromatic ring or a heterocyclic aromatic ring; R 1 is selected from groups represented by formulae (A), (B), and (C) ##STR2## in which R 11 and R 12 each represents a substituted or unsubstituted alkyl group, a cycloalkyl group, a substituted or unsubstituted alkenyl group, an aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, an alkyloxy or aryloxy group, an alkylthio or arylthio group, or a substituted or unsubstituted amino group, or R 11 and R 12 together form a 5-membered or 6-membered ring; R 2 represents a group selected from the groups represented by R 11 ; R 1 and R 2 together form a 5-membered or 6-membered ring; Q represents a hydrogen atom, an alkyl group, or an aryl group; TIME represents a timing group; PUG represents a photographically useful group; and n represents 0 or an integer.
Inventors
- 👤 Hiroshi Kitaguchi
- 👤 Masatoshi Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:51
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/40; G03C8/4013; G03C8/408; G03C1/00; G03C1/494; G03C1/498; G03C1/49836; G03C1/49845; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158; Y10S430/159; Y10S430/16
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
196 words
A process for forming an image comprising a heating step wherein a silver halide light-sensitive photographic material is heated in the presence of a compound represented by formula (I) ##STR35## wherein X represents an atomic group completing a carbocyclic aromatic ring or a heterocyclic aromatic ring; R 1 is selected from groups represented by formulae (A), (B), and (C) ##STR36## in which R 11 and R 12 each represents a substituted or unsubstituted alkyl group, a cycloalkyl group, a substituted or unsubstituted alkenyl group, an aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, an alkyloxy or aryloxy group, an alkylthio or arylthio group, or a substituted or unsubstituted amino group, or R 11 and R 12 together form a 5-membered or 6-membered ring; R 2 represents a group selected from the groups represented by R 11 ; R 1 and R 2 together form a 5-membered or 6-membered ring; Q represents a hydrogen atom, an alkyl group, or an aryl group; TIME represents a timing group; PUG represents a photographically useful group; and n represents 0 or an integer, wherein the photographic material contains a base or a base precursor.
Claim 2
Dependent Claim
196 words
A process for forming an image comprising a heating step wherein a silver halide light-sensitive photographic material is heated in the presence of a compound represented by formula (I) ##STR35## wherein X represents an atomic group completing a carbocyclic aromatic ring or a heterocyclic aromatic ring; R 1 is selected from groups represented by formulae (A), (B), and (C) ##STR36## in which R 11 and R 12 each represents a substituted or unsubstituted alkyl group, a cycloalkyl group, a substituted or unsubstituted alkenyl group, an aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, an alkyloxy or aryloxy group, an alkylthio or arylthio group, or a substituted or unsubstituted amino group, or R 11 and R 12 together form a 5-membered or 6-membered ring; R 2 represents a group selected from the groups represented by R 11 ; R 1 and R 2 together form a 5-membered or 6-membered ring; Q represents a hydrogen atom, an alkyl group, or an aryl group; TIME represents a timing group; PUG represents a photographically useful group; and n represents 0 or an integer, wherein the photographic material contains a base or a base precursor.
Claim 3
Dependent Claim
16 words
A process as in claim 1, wherein the heating temperature is from 80° to 250° C.
Claim 4
Dependent Claim
47 words
A process as in claim 1, wherein at least one of R 11 and R 12 represents a substituted or unsubstituted linear or branched alkyl group having from 1 to 18 carbon atoms or a 5-membered or 6-membered cycloalkyl group having from 5 to 10 carbon atoms.
Claim 5
Dependent Claim
42 words
A process as in claim 1, wherein at least one of R 11 and R 12 represents an alkenyl group selected from the group consisting of a vinyl group, an allyl group, a crotyl group, and a substituted or unsubstituted styryl group.
Claim 6
Dependent Claim
29 words
A process as in claim 1, wherein at least one of R 11 and R 12 represents an aralkyl group selected from a benzyl group and a β-phenethyl group.
Claim 7
Dependent Claim
27 words
A process as in claim 1, wherein at least one of R 11 and R 12 represents an aryl group having from 6 to 18 carbon atoms.
Claim 8
Dependent Claim
35 words
A process as in claim 1, wherein at least one of R 11 and R 12 represents a substituted or unsubstituted 5-membered or 6-membered heterocyclic group having oxygen, nitrogen, or sulfur as a hetero atom.
Claim 9
Dependent Claim
23 words
A process as in claim 1, wherein at least one of R 11 and R 12 represents an alkyloxy or an aryloxy group.
Claim 10
Dependent Claim
24 words
A process as in claim 1, wherein at least one of R 11 and R 12 represents represents an alkylthio or an arylthio group.
Claim 11
Dependent Claim
52 words
A process as in claim 1, wherein PUG represents a photographically useful reagent selected from an antifoggant, a development restrainer, a developing agent, a development accelerator, an electron donor, a fogging agent, a nucleus-forming agent, a solvent for silver halide, a dye, a colored material for color diffusion transfer, and a coupler.
Claim 12
Dependent Claim
15 words
A process as in claim 10, wherein the photographically useful reagent is a development restrainer.
Claim 13
Dependent Claim
29 words
A process as in claim 11, wherein the development restrainer is represented by formula (II) ##STR37## wherein Y represents an atomic group forming a 5-membered or 6-membered heterocyclic ring.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-26 | 1990-07-28 | 1991-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-26 | 1994-07-28 | 1995-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-26 | 1998-07-28 | 1999-01-27 | $7700.00 | Window Closed / Lapsed |