GB999166A - Improvements in or relating to light scattering photographic materials - Google Patents

Improvements in or relating to light scattering photographic materials

Info

Publication number
GB999166A
GB999166A GB3897/64A GB389764A GB999166A GB 999166 A GB999166 A GB 999166A GB 3897/64 A GB3897/64 A GB 3897/64A GB 389764 A GB389764 A GB 389764A GB 999166 A GB999166 A GB 999166A
Authority
GB
United Kingdom
Prior art keywords
light scattering
photographic materials
jan
treatment
relating
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.)
Expired
Application number
GB3897/64A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kalvar Corp
Original Assignee
Kalvar Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25983201&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB999166(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kalvar Corp filed Critical Kalvar Corp
Publication of GB999166A publication Critical patent/GB999166A/en
Expired legal-status Critical Current

Links

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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/60—Processes for obtaining vesicular images

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

999,166. Treating light scattering photographic materials. KALVAR CORPORATION. Jan. 29,1964 [Jan. 29,1963], No. 3897/64. Addition to 874,698. Heading G2C. Light scattering elements are treated prior to exposure and development, with steam or water vapour at a temperature sufficiently high and for a period sufficiently long that the gamma value of the material is reduced, the temperature and duration of the treatment being not so high and not so long, that the element is damaged by the treatment. Preferably dry saturated steam at 212‹F. is employed. The light scattering material may contain p-diazodimethylaniline zinc chloride as photolytic agent and a copolymer of vinylidene chloride or ethyl acrylate with acrylonitrile or a homopolymer of methacrylonitrile as vehicle therefor.
GB3897/64A 1959-10-19 1964-01-29 Improvements in or relating to light scattering photographic materials Expired GB999166A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK0038943 1959-10-19
US254560A US3149971A (en) 1959-10-19 1963-01-29 Method for improving gradation of light scattering photographic materials

Publications (1)

Publication Number Publication Date
GB999166A true GB999166A (en) 1965-07-21

Family

ID=25983201

Family Applications (2)

Application Number Title Priority Date Filing Date
GB34827/59A Expired GB874698A (en) 1959-10-19 1959-10-14 Improvements in and relating to light scattering photographic materials
GB3897/64A Expired GB999166A (en) 1959-10-19 1964-01-29 Improvements in or relating to light scattering photographic materials

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB34827/59A Expired GB874698A (en) 1959-10-19 1959-10-14 Improvements in and relating to light scattering photographic materials

Country Status (3)

Country Link
US (1) US3149971A (en)
DE (2) DE1422445A1 (en)
GB (2) GB874698A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386826A (en) * 1964-05-08 1968-06-04 Ibm Process for producing improved diazotype elements
US3841874A (en) * 1971-03-15 1974-10-15 Xidex Corp Method for improving the photographic characteristics of vesicular photographic materials
DE2805680C2 (en) * 1977-03-01 1982-05-27 Bexford Ltd., London Recording materials for the vesicular process and processes for increasing the photosensitivity of such recording materials
EP0033200B1 (en) * 1980-01-24 1984-02-29 Bexford Limited Process for the production of vesicular recording materials
US4508808A (en) * 1982-11-12 1985-04-02 Xidex Corporation Method of using diazotype photographic materials with preexposure treatment to form uniform sites of refractive index change

Also Published As

Publication number Publication date
DE1447734A1 (en) 1969-01-02
DE1447734B2 (en) 1974-10-10
GB874698A (en) 1961-08-10
US3149971A (en) 1964-09-22
DE1447734C3 (en) 1975-06-05
DE1422445A1 (en) 1969-01-16

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