Preparation of new protein derivatives by reacting gelatin with aromatic compounds containing stilbene or diphenylimidazolone groups
Abstract
Abstract A PROTEIN SUCH AS GELATIN, CASEIN OR WOOL IS CHEMICALLY REACTED AT A PH BETWEEN 7 AND 11 WITH AN ORGANIC AROMATIC FLUORESCENT COMPOUND OF THE TYPE CONTAINING A STILBENE OR DIPHENYLIMIDAZOLONE GROUP AND BEARING A GROUP WHICH IS CHEMICALLY REACTIVE WITH SAID PROTEIN, SUCH AS AN ACTIVE HALOGEN ATOM, ANHYDRIDE GROUP OR THE LIKE, THE FLUORESCENT COMPOUND BEING PRESENT IN AN AMOUNT EQUAL TO 20-120% BY WEIGHT OF THE PROTEIN. THE FLUORESCENT COMPOUND IS PREFERABLY DISSOLVED IN A SOLVENT INERT WITH RESPECT TO IT AND THE PROTEIN AT A CONCENTRATION OF 2-23%. THE PROTEIN CAN BE TREATED IN THE FORM OF A SOLID OR WATER SOLUTION, AND IN THE LATTER CASE IS RECOVERED BY REDUCING THE PH OF THE SOLUTION. A PREFERRED UTILITY FOR THE RESULTANT REACTION PRODUCT IS IN THE FORMATION OF LAYERS IN PHOTOGRAPHIC MATERIAL.
Inventors
- 👤 M Vrancken
- 👤 J Willems
Bibliographic Details
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