Document Type and Number:
Japanese Patent JPS5724901
Kind Code:
B2
Abstract:
A method of hardening gelatin which comprises adding thereto a compound of the following general formula (I): (I) in which Y1 is CH2=CH-, ClCH2-CH2-, BrCH2-CH2-, CH3COO-CH2CH2- or ClCH2COO-CH2CH2-, R1 and R2 are H or CH3, but both of them are not CH3 at the same time, and A is one of the following groups: (1) esters , OCH2Cl, , or (2) Acid anhydrides or (3) Amides(imides) or in which both R3 and R4 were acyl groups or at least one of them is an acyl group other than when R3 and R4 form a benzotriazole ring, and when one of R3 and R4 is an acyl group, the other is H or an alkyl group containing at most 4 carbon atoms; and wherein in any case, R3 and R4 may form a saturated or unsaturated carbocyclic or heterocyclic ring in combination with the nitrogen atom to which they are attached; R5, R6 and R7 are alkyl groups containing at most 4 carbon atoms, and may form a saturated or unsaturated ring, or may form a bicyclo ring; X<-> is an acid anion; R8 and R9 are a saturated or unsaturated carbocyclic or heterocyclic ring which combine with the nitrogen atom to which they are attached; R10 is an alkyl or aryl group containing at most 6 carbon atoms; R11 is an alkyl group containing at most 3 carbon atoms; R12 is an alkyl, aryl or aralkyl group containing at most 7 carbons atoms; Y2 is CH2=CH-, ClCH2-CH2-, Br-CH2CH2-, CH3COO-CH2CH2-, or ClCH2COO-CH2CH2-, and Y1 is as earlier defined.
Application Number:
JP5050075A
Publication Date:
May 26, 1982
Filing Date:
April 25, 1975
Export Citation:
International Classes:
C07D249/18; C07C67/00; C07C313/00; C07C317/44; C07D203/08; C07D203/18; C07D207/452; C07D207/46; C07D487/08; C08L89/00; G03C1/30