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
Links
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
<Desc/Clms Page number 1>
Österreichische PATENTSCHRIFT Ne 14891.
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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
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dunstenl ässt.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Austrian PATENT Letters Ne 14891.
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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
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steams.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
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) |
-
1902
- 1902-10-10 AT AT14891D patent/AT14891B/en active
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