Hardening gelatin coat with dihalo S-triazine deriv - for diffusion fastness and insolubility of emulsion in water at various temp. and acidity values

Hardening gelatin coat with dihalo S-triazine deriv - for diffusion fastness and insolubility of emulsion in water at various temp. and acidity values

The hardeners have formula (I): (in which prot. is the gelatin protein chain, Z is a guanidino bridge, X is Cl or Br, R is (-) -N-SO2-R1M(+) (II) or -O(-)M(+) (V) R1 is an aliphatic or aromatic gp. R2 is H or an aliphatic gp M is Ne, K or NH4, m is relatively large integer, n = 2m or 3m), (I) is the...

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Bibliographische Detailangaben
Hauptverfasser: PLASCHNIK, DIETER, X 4440 WOLFEN, JESCHEK, HEINZ, BACH, GUENTHER. DR, MEISEL, ULRICH
Format: Patent
Sprache:eng ; ger
Schlagworte:
AUXILIARY PROCESSES IN PHOTOGRAPHY
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
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Zusammenfassung:The hardeners have formula (I): (in which prot. is the gelatin protein chain, Z is a guanidino bridge, X is Cl or Br, R is (-) -N-SO2-R1M(+) (II) or -O(-)M(+) (V) R1 is an aliphatic or aromatic gp. R2 is H or an aliphatic gp M is Ne, K or NH4, m is relatively large integer, n = 2m or 3m), (I) is the reaction prod. of dihalo-5-triazine and guanidised gelatin.