UST878011I4 - Defensive publication - Google Patents

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Publication number
UST878011I4
UST878011I4 US878011DH UST878011I4 US T878011 I4 UST878011 I4 US T878011I4 US 878011D H US878011D H US 878011DH US T878011 I4 UST878011 I4 US T878011I4
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US
United States
Prior art keywords
defensive publication
polymer
paper
methylpentene
layer
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
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Publication of UST878011I4 publication Critical patent/UST878011I4/en
Pending legal-status Critical Current

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Classifications

    • 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
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
    • G03C1/79—Macromolecular coatings or impregnations therefor, e.g. varnishes
    • 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
    • G03C1/91—Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means
    • G03C1/915—Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means using mechanical or physical means therefor, e.g. corona

Definitions

  • a photographic paper having a paper base coated on at least one side with a 4-methylpentene-1 polymer, the emulsions are then applied to the coating of 4-methylpentene-1 polymer.
  • Photographic papers thus produced have a reduced drying time and are heat stable when subjected to drying temperatures. It is preferred that both sides of the paper be coated with the 4-methylpentene-l polymer.
  • the method of making a photographic paper with reduced drying time comprises coating at least one side (preferably both sides) of the paper with 4-methylpentone-1 polymer to a thickness of the order of about 20 to 25 microns, subjecting a 4-methylpentene-l layer to surface treatment such as corona discharge to promote the adhesion of the emulsion of the polymer, placing an initial layer of gelatin on the polymer layer thus treated and applying a layer of radiation sensitive material such as a photographic emulsion to the prepared polymer layer. Papers thus produced are suitable for both black and white and color photography.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Paper (AREA)

Description

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16. 1969, 869 0.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification. including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofiice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED SEPTEMBER 8, 1970 T878,011 PHOTOGRAPHIC PAPER Louis G. Loquifer, Brussels, Belgium, and Lesley Hinds,
Welwyn Garden City, England, assignors to Imperial Chemical Industries Limited, London, England, a corporation of Great Britain Filed Mar. 11, 1970, Ser. No. 18,708 Claims priority, application Great Britain, Mar. 14, 1969, 13,575/ 69 Int. Cl. B32b 23/08 US. Cl. 117-68 No Drawing. 5 Pages Specification A photographic paper is disclosed having a paper base coated on at least one side with a 4-methylpentene-1 polymer, the emulsions are then applied to the coating of 4-methylpentene-1 polymer. Photographic papers thus produced have a reduced drying time and are heat stable when subjected to drying temperatures. It is preferred that both sides of the paper be coated with the 4-methylpentene-l polymer.
The method of making a photographic paper with reduced drying time comprises coating at least one side (preferably both sides) of the paper with 4-methylpentone-1 polymer to a thickness of the order of about 20 to 25 microns, subjecting a 4-methylpentene-l layer to surface treatment such as corona discharge to promote the adhesion of the emulsion of the polymer, placing an initial layer of gelatin on the polymer layer thus treated and applying a layer of radiation sensitive material such as a photographic emulsion to the prepared polymer layer. Papers thus produced are suitable for both black and white and color photography.
US878011D 1969-03-14 1970-03-11 Defensive publication Pending UST878011I4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1357569 1969-03-14

Publications (1)

Publication Number Publication Date
UST878011I4 true UST878011I4 (en) 1970-09-08

Family

ID=10025450

Family Applications (1)

Application Number Title Priority Date Filing Date
US878011D Pending UST878011I4 (en) 1969-03-14 1970-03-11 Defensive publication

Country Status (5)

Country Link
US (1) UST878011I4 (en)
BE (1) BE747160A (en)
CA (1) CA948468A (en)
FR (1) FR2034938B1 (en)
GB (1) GB1252061A (en)

Also Published As

Publication number Publication date
FR2034938A1 (en) 1970-12-18
CA948468A (en) 1974-06-04
BE747160A (en) 1970-09-10
GB1252061A (en) 1971-11-03
FR2034938B1 (en) 1975-12-26

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