GB442887A - Improvements relating to the photographic production of direct positives for autotype purposes - Google Patents

Improvements relating to the photographic production of direct positives for autotype purposes

Info

Publication number
GB442887A
GB442887A GB23774/34A GB2377434A GB442887A GB 442887 A GB442887 A GB 442887A GB 23774/34 A GB23774/34 A GB 23774/34A GB 2377434 A GB2377434 A GB 2377434A GB 442887 A GB442887 A GB 442887A
Authority
GB
United Kingdom
Prior art keywords
solution
support
relief
autotype
purposes
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
GB23774/34A
Other languages
English (en)
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB442887A publication Critical patent/GB442887A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
    • G03F1/54—Absorbers, e.g. of opaque materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
GB23774/34A 1933-08-19 1934-08-17 Improvements relating to the photographic production of direct positives for autotype purposes Expired GB442887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE442887X 1933-08-19

Publications (1)

Publication Number Publication Date
GB442887A true GB442887A (en) 1936-02-17

Family

ID=6525713

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23774/34A Expired GB442887A (en) 1933-08-19 1934-08-17 Improvements relating to the photographic production of direct positives for autotype purposes

Country Status (3)

Country Link
BE (1) BE404596A (enrdf_load_stackoverflow)
FR (1) FR776873A (enrdf_load_stackoverflow)
GB (1) GB442887A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR776873A (fr) 1935-02-06
BE404596A (enrdf_load_stackoverflow)

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