UST867019I4 - Defensive publication - Google Patents

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Publication number
UST867019I4
UST867019I4 US867019DH UST867019I4 US T867019 I4 UST867019 I4 US T867019I4 US 867019D H US867019D H US 867019DH US T867019 I4 UST867019 I4 US T867019I4
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US
United States
Prior art keywords
defensive publication
rhodanine
pyridylidene
ethyl
published
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
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Publication of UST867019I4 publication Critical patent/UST867019I4/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/10—The polymethine chain containing an even number of >CH- groups
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • G03C1/83—Organic dyestuffs therefor
    • G03C1/832—Methine or polymethine dyes
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/305—Additives other than developers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/38—Fixing; Developing-fixing; Hardening-fixing
    • G03C5/383—Developing-fixing, i.e. mono-baths
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/50—Reversal development; Contact processes

Definitions

  • a pyridylidene rhodanine dye such as 3-ethyl-5[(l-(4-sulfobutyl)-4(1H)-pyridylidene)] rhodanine sodium salt, 3-ethyl- 5-(1-ethyl-4( lI-l)pyridylidene)rhodanine and/or 3-ethyl- 5-(1-beta-hydroxyethyl-4(1H)-pyridylidene) rhodanine in a monobath and/or in a photographic element containing a photographic silver halide emulsion and development nuclei provides the described improved properties.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Description

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Apr. 11, 1968, 849 O.G. 1221. Identification is by serial number of the application and the heading indicates the number of pages or specification, including claims, and of sheets of drawing contained in the application as originally filed, The die of this application is available to the public for inspection; reproduction may be purchased for 30 cents per sheet. 7
Applications published under the Defensive Publication Program have not been examined as to the merits or alleged invention. The Patent Oflice makes no assertion as to the novelty oi. the disclosed subject matter.
PUBLISHED OCTOBER 28, 1969 818,419 REVERSAL SYSTEM CONTAINING A PYRIDYL- IDENE RHODANINE DYE Robert C. Taber, Kodak Park Division, Rochester, N.Y. 14650 Filed Apr. 22, 1969. Published Oct. 28, 1969 Int. Cl. G03c 5/50, 5/30, 1/48 US. CI. 96-59 No Drawing. 9 Pages Specification Processing an exposed photographic element in a reversal system employing chemical development and physical development in one element in the presence of a pyridylidene rhodanine dye provides desired lower positive minimum density and improved image tone. A pyridylidene rhodanine dye, such as 3-ethyl-5[(l-(4-sulfobutyl)-4(1H)-pyridylidene)] rhodanine sodium salt, 3-ethyl- 5-(1-ethyl-4( lI-l)pyridylidene)rhodanine and/or 3-ethyl- 5-(1-beta-hydroxyethyl-4(1H)-pyridylidene) rhodanine in a monobath and/or in a photographic element containing a photographic silver halide emulsion and development nuclei provides the described improved properties.
US867019D 1969-04-22 1969-04-22 Defensive publication Pending UST867019I4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81841969A 1969-04-22 1969-04-22

Publications (1)

Publication Number Publication Date
UST867019I4 true UST867019I4 (en) 1969-10-28

Family

ID=25225492

Family Applications (1)

Application Number Title Priority Date Filing Date
US867019D Pending UST867019I4 (en) 1969-04-22 1969-04-22 Defensive publication

Country Status (3)

Country Link
US (1) UST867019I4 (en)
BE (1) BE742613A (en)
FR (1) FR2016737A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5972578A (en) * 1998-05-18 1999-10-26 Eastman Kodak Company Yellow dye-containing developing/fixing monobath and method for processing roomlight handleable black-and-white photographic elements

Also Published As

Publication number Publication date
BE742613A (en) 1970-05-14
FR2016737A1 (en) 1970-05-15

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