Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1973-02-16
1977-01-04
Schain, Howard E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
526 9, 260556AC, 260556N, 96111, C09H 700, C08F11606
Patent
active
040012018
ABSTRACT:
The present invention relates to a process for crosslinking hydrophilic colloids which contain amino-, imino- and/or hydroxyl groups. Compounds of the formula ##EQU1## are used as crosslinking agents. In the formula V and W denote hydrogen atoms or organic radicals, X and Y represent vinyl groups or substituted vinyl groups or groups which can be converted into vinyl groups, Z represents an organic bridge member and m is an integer from one to 11. The compounds used as cross-linking agents, except those of the above formula wherein X and Y represent groups which can be converted into vinyl groups, are new and form part of the invention; also forming another aspect of the invention are photographic materials containing celloids cross-linked as per the above process.
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patent: 2579871 (1951-12-01), Schoene
patent: 2994611 (1961-08-01), Heyna et al.
patent: 3061436 (1962-10-01), Himmelman et al.
patent: 3455892 (1969-07-01), Froehlich
patent: 3455893 (1969-07-01), Froehlich
patent: 3551159 (1970-12-01), Froehlich
patent: 3642486 (1972-02-01), Burness et al.
Chem. Abstracts. vol. 68, 1968, 3531p, Nishio et al.
Almaula Prabodh I.
Ciba-Geigy AG
Kolodny Joseph G.
McC. Roberts Edward
Schain Howard E.
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