| 摘要 |
PURPOSE:To obtain the curing agent of gelatin which has rapid curing effect and has less tendency for producing a post cured film by incorporating a specific compd. to the gelatin as the curing agent of the gelatin. CONSTITUTION:At least one kind of the compd. shown by the formula is incorpo rated to the gelatin as the curing agent of the gelatin. In the formula, R<1> and R<2> may be the same or the different with each other, and are each alkyl, aryl or aralkyl group, R<3> is hydrogen or halogen atom or alkyl, aryl, aralkyl or alkoxy group, R<4> is hydrogen atom or alkyl, aryl or aralkyl group, L is a single bond or alkylene or arylene group or a divalent group capable of forming by combining thereof. The used amount of the curing agent can be selected optionally for each purpose, but is usually 0.01-20wt.% based on the weight of the dry gelatin. Thus, the curing agent which has the rapid curing effect and less tendency for generating the hindrance of curing is obtd. |
