AT14891B - Process for the production of photographic film. - Google Patents

Process for the production of photographic film.

Info

Publication number
AT14891B
AT14891B AT14891DA AT14891B AT 14891 B AT14891 B AT 14891B AT 14891D A AT14891D A AT 14891DA AT 14891 B AT14891 B AT 14891B
Authority
AT
Austria
Prior art keywords
production
photographic film
celluloid
desc
warning
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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
Priority claimed from DE1901135474D external-priority patent/DE135474C/de
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT14891B publication Critical patent/AT14891B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 



   Österreichische PATENTSCHRIFT Ne 14891. 
 EMI1.1 
 
 EMI1.2 
 aus Zelluloid zeigen den Übelstand, infolge ihres Gehaltes an Nitrozellulose durch Einwirkung der Nitrogruppen auf die   sitbcrfuhrende   Gelatineschicht sich mit der Zeit zu verändern, so dass solche photographische l'latten und Rollen nur eine begrenzte Zeit haltbar sind.   l' : s wurde nun gefunden,   dass sich Zellutoid-Folien. welche keine Nitrogruppen enthalten und zur Erzeugung von unbeschränkt haltbaren photographischen Films geeignet sind, dadurch erhalten lassen, dass man die Folien ans einer von uns aufgefundenen neuen 
 EMI1.3 
   dunstenl ässt. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



   Austrian PATENT Letters Ne 14891.
 EMI1.1
 
 EMI1.2
 made of celluloid show the inconvenience of changing over time due to their nitrocellulose content due to the action of the nitro groups on the gelatin layer carrying the seat, so that such photographic slats and rolls can only be kept for a limited time. l ': s has now been found to be cellutoid sheets. which do not contain any nitro groups and are suitable for producing photographic films with unlimited durability, can be obtained by attaching the films to a new one we have found
 EMI1.3
   steams.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH: EMI1.4 als Unterlage nicht Zelluloid aus Nitrozellulose, sondern zelluloidartige Massen aus Azetylzellulosenbenutzt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: EMI1.4 celluloid made of nitrocellulose was not used as a base, but celluloid-like masses made of acetylcellulose. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT14891D 1901-08-01 1902-10-10 Process for the production of photographic film. AT14891B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1901135474D DE135474C (en) 1901-08-01

Publications (1)

Publication Number Publication Date
AT14891B true AT14891B (en) 1904-01-25

Family

ID=5665975

Family Applications (1)

Application Number Title Priority Date Filing Date
AT14891D AT14891B (en) 1901-08-01 1902-10-10 Process for the production of photographic film.

Country Status (1)

Country Link
AT (1) AT14891B (en)

Similar Documents

Publication Publication Date Title
DE1720050A1 (en) Process for the production of cellulose acetate membranes for counter osmosis
AT14891B (en) Process for the production of photographic film.
DE1817542A1 (en) Method of making a semi-permeable membrane
AT92341B (en) Process for the continuous production of a fabric or coating from cellulose membranes.
AT32636B (en) Acetyl cellulose emulsions for photographic use.
DE895375C (en) Process for the production of solutions from mixed polyamides
DE476309C (en) Folding boat skin
AT44532B (en) Process for the production of grids on thin membranes.
AT28628B (en) Transformation images, in which the transformation of the image is caused by the effect of light.
DE912398C (en) Process for the production of products from formaldehyde, other carbonyl compounds, ammonium salts and urea
AT75733B (en) Process for the production of inking rollers for book printing purposes.
DE87429C (en)
DE863128C (en) Dissolving, gelatinizing, swelling and softening agents
AT148785B (en) Process for the preparation of stable solutions of substances with anesthetic effect.
AT16126B (en) Photographic emulsion.
DE169364C (en)
DE580973C (en) Photographic film
DE92797C (en)
AT67785B (en) Process for the preparation of vaccines from pathogens.
AT32654B (en) Process for making transparent photographic images.
AT73393B (en) Sewing strap.
DE642092C (en) Process for the production of printing blocks from a photographic plate or a photographic film
AT34876B (en) Process for the production of compact bodies from chromium gelatin masses.
AT110542B (en) Masses containing ethers or esters of cellulose.
AT38449B (en) Method of making multicolor filters for direct color photography.